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<title data-rh="true">SLO: Elastic vs Datadog vs Grafana - Alex Ewerlöf Notes</title>
<meta data-rh="true" name="theme-color" content="#001426"/><meta data-rh="true" property="og:type" content="article"/><meta data-rh="true" property="og:title" content="SLO: Elastic vs Datadog vs Grafana"/><meta data-rh="true" name="twitter:title" content="SLO: Elastic vs Datadog vs Grafana"/><meta data-rh="true" name="description" content="This post reviews the Service Level implementation in 3 observability providers: Elastic, Datadog, and Grafana"/><meta data-rh="true" property="og:description" content="Reviewing the Service Level implementation in 3 observability providers"/><meta data-rh="true" name="twitter:description" content="Reviewing the Service Level implementation in 3 observability providers"/><meta data-rh="true" property="og:image" content="https://substackcdn.com/image/fetch/$s_!nB3Z!,w_1200,h_675,c_fill,f_jpg,q_auto:good,fl_progressive:steep,g_auto/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc536dcd0-3ce6-45ae-a47a-053162600c7e_1038x419.png"/><meta data-rh="true" name="twitter:image" content="https://substackcdn.com/image/fetch/$s_!HaGN!,f_auto,q_auto:best,fl_progressive:steep/https%3A%2F%2Falexewerlof.substack.com%2Fapi%2Fv1%2Fpost_preview%2F148723414%2Ftwitter.jpg%3Fversion%3D4"/><meta data-rh="true" name="twitter:card" content="summary_large_image"/><meta data-rh="true" property="article:modified_time" content="2026-01-08T09:55:50.098Z"/>
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data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/c536dcd0-3ce6-45ae-a47a-053162600c7e_1038x419.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:419,&quot;width&quot;:1038,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:72103,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:false,&quot;topImage&quot;:true,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" alt srcset="https://substackcdn.com/image/fetch/$s_!nB3Z!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc536dcd0-3ce6-45ae-a47a-053162600c7e_1038x419.png 424w, https://substackcdn.com/image/fetch/$s_!nB3Z!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc536dcd0-3ce6-45ae-a47a-053162600c7e_1038x419.png 848w, https://substackcdn.com/image/fetch/$s_!nB3Z!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc536dcd0-3ce6-45ae-a47a-053162600c7e_1038x419.png 1272w, https://substackcdn.com/image/fetch/$s_!nB3Z!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc536dcd0-3ce6-45ae-a47a-053162600c7e_1038x419.png 1456w" sizes="100vw" fetchpriority="high" class="sizing-normal"/></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p><span>I’ve spent the past few years learning, </span><a href="https://blog.alexewerlof.com/p/rem">teaching</a><span>, and </span><a href="https://slc.alexewerlof.com/">coding</a><span> service levels. So I got curious to see how the well-known observability providers implement it.</span></p><p>This post is my independent review of all 3 with snapshots.</p><h3 class="header-anchor-post">Disclaimers<div class="pencraft pc-display-flex pc-alignItems-center pc-position-absolute pc-reset header-anchor-parent"><div class="pencraft pc-display-contents pc-reset pubTheme-yiXxQA"><div id="§disclaimers" class="pencraft pc-reset header-anchor offset-top"></div><button tabindex="0" type="button" aria-label="Link" data-href="https://blog.alexewerlof.com/i/148723414/disclaimers" class="pencraft pc-reset pencraft iconButton-mq_Et5 iconButtonBase-dJGHgN buttonBase-GK1x3M buttonStyle-r7yGCK size_sm-G3LciD priority_secondary-S63h9o"><svg xmlns="http://www.w3.org/2000/svg" width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-link"><path d="M10 13a5 5 0 0 0 7.54.54l3-3a5 5 0 0 0-7.07-7.07l-1.72 1.71"></path><path d="M14 11a5 5 0 0 0-7.54-.54l-3 3a5 5 0 0 0 7.07 7.07l1.71-1.71"></path></svg></button></div></div></h3><ul><li><p><em>This is not a paid or affiliated review. None of the vendors got the chance to see my review before it went public and I’ll clearly mention if they ask me to do an update.</em></p></li><li><p><em>This review was carried at early September 2024 on the same day for all 3. Obviously, the UI and feature set may change in the future.</em></p></li><li><p><em>If I missed or misunderstood something, you can correct me in the comments.</em></p></li><li><p><em>I don’t represent my current or past employers or customers on my personal blog. This review is my independent investigation.</em></p></li></ul><h1 class="header-anchor-post">Elastic<div class="pencraft pc-display-flex pc-alignItems-center pc-position-absolute pc-reset header-anchor-parent"><div class="pencraft pc-display-contents pc-reset pubTheme-yiXxQA"><div id="§elastic" class="pencraft pc-reset header-anchor offset-top"></div><button tabindex="0" type="button" aria-label="Link" data-href="https://blog.alexewerlof.com/i/148723414/elastic" class="pencraft pc-reset pencraft iconButton-mq_Et5 iconButtonBase-dJGHgN buttonBase-GK1x3M buttonStyle-r7yGCK size_sm-G3LciD priority_secondary-S63h9o"><svg xmlns="http://www.w3.org/2000/svg" width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-link"><path d="M10 13a5 5 0 0 0 7.54.54l3-3a5 5 0 0 0-7.07-7.07l-1.72 1.71"></path><path d="M14 11a5 5 0 0 0-7.54-.54l-3 3a5 5 0 0 0 7.07 7.07l1.71-1.71"></path></svg></button></div></div></h1><p><span>The first stop is Elastic because they were open source, then they were not, and recently </span><a href="https://www.elastic.co/blog/elasticsearch-is-open-source-again">they are open source again</a><span>!</span></p><p><span>Unfortunately, the SLO feature is </span><a href="https://www.elastic.co/pricing">only available in their Platinum price tier</a><span> at the time of this writing. I </span><em>really</em><span> hope this will change because if metrics are data, Service Level is the perspective that makes that data actionable in relation to business objectives and consumer needs.</span></p><p>Charging for SLOs separately is like charging a premium for GPS navigation system of a car. Do vendors do that? Yes. But they also force the majority to use their phone instead. SLO is not rocket science, don’t force people to use alternative solutions just to take full advantage of the data they’re already sending your way! If anything, having SLO on all plans is a motivator to send more data because of the value it creates.</p><p>So I’m gonna go MKBHD on this one:</p><div class="captioned-image-container"><figure><a target="_blank" href="https://substackcdn.com/image/fetch/$s_!3sIq!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F0b37552b-2569-4446-b16e-72dd51b2257c_500x556.jpeg" data-component-name="Image2ToDOM" class="image-link image2 is-viewable-img can-restack"><div class="image2-inset"><picture><source type="image/webp" srcset="https://substackcdn.com/image/fetch/$s_!3sIq!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F0b37552b-2569-4446-b16e-72dd51b2257c_500x556.jpeg 424w, https://substackcdn.com/image/fetch/$s_!3sIq!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F0b37552b-2569-4446-b16e-72dd51b2257c_500x556.jpeg 848w, https://substackcdn.com/image/fetch/$s_!3sIq!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F0b37552b-2569-4446-b16e-72dd51b2257c_500x556.jpeg 1272w, https://substackcdn.com/image/fetch/$s_!3sIq!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F0b37552b-2569-4446-b16e-72dd51b2257c_500x556.jpeg 1456w" sizes="100vw"/><img src="https://substackcdn.com/image/fetch/$s_!3sIq!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F0b37552b-2569-4446-b16e-72dd51b2257c_500x556.jpeg" width="500" height="556" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/0b37552b-2569-4446-b16e-72dd51b2257c_500x556.jpeg&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:556,&quot;width&quot;:500,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:null,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:null,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" alt srcset="https://substackcdn.com/image/fetch/$s_!3sIq!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F0b37552b-2569-4446-b16e-72dd51b2257c_500x556.jpeg 424w, https://substackcdn.com/image/fetch/$s_!3sIq!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F0b37552b-2569-4446-b16e-72dd51b2257c_500x556.jpeg 848w, https://substackcdn.com/image/fetch/$s_!3sIq!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F0b37552b-2569-4446-b16e-72dd51b2257c_500x556.jpeg 1272w, https://substackcdn.com/image/fetch/$s_!3sIq!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F0b37552b-2569-4446-b16e-72dd51b2257c_500x556.jpeg 1456w" sizes="100vw" loading="lazy" class="sizing-normal"/></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p>Once you do have access, SLOs have a prominent place in Elastic UI which is great!</p><div class="captioned-image-container"><figure><a target="_blank" href="https://substackcdn.com/image/fetch/$s_!SnaG!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F74232cb1-9e81-4430-8c79-af8ee0e65d99_265x402.png" data-component-name="Image2ToDOM" class="image-link image2 is-viewable-img can-restack"><div class="image2-inset"><picture><source type="image/webp" srcset="https://substackcdn.com/image/fetch/$s_!SnaG!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F74232cb1-9e81-4430-8c79-af8ee0e65d99_265x402.png 424w, https://substackcdn.com/image/fetch/$s_!SnaG!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F74232cb1-9e81-4430-8c79-af8ee0e65d99_265x402.png 848w, https://substackcdn.com/image/fetch/$s_!SnaG!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F74232cb1-9e81-4430-8c79-af8ee0e65d99_265x402.png 1272w, https://substackcdn.com/image/fetch/$s_!SnaG!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F74232cb1-9e81-4430-8c79-af8ee0e65d99_265x402.png 1456w" sizes="100vw"/><img src="https://substackcdn.com/image/fetch/$s_!SnaG!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F74232cb1-9e81-4430-8c79-af8ee0e65d99_265x402.png" width="265" height="402" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/74232cb1-9e81-4430-8c79-af8ee0e65d99_265x402.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:402,&quot;width&quot;:265,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:19960,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" alt srcset="https://substackcdn.com/image/fetch/$s_!SnaG!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F74232cb1-9e81-4430-8c79-af8ee0e65d99_265x402.png 424w, https://substackcdn.com/image/fetch/$s_!SnaG!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F74232cb1-9e81-4430-8c79-af8ee0e65d99_265x402.png 848w, https://substackcdn.com/image/fetch/$s_!SnaG!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F74232cb1-9e81-4430-8c79-af8ee0e65d99_265x402.png 1272w, https://substackcdn.com/image/fetch/$s_!SnaG!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F74232cb1-9e81-4430-8c79-af8ee0e65d99_265x402.png 1456w" sizes="100vw" loading="lazy" class="sizing-normal"/></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p>Elastic uses a 3-step single page setup for creating new SLOs:</p><div class="captioned-image-container"><figure><a target="_blank" href="https://substackcdn.com/image/fetch/$s_!q4q6!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F44cb5ca9-56d7-4d34-80ee-62a0ec995413_864x1092.png" data-component-name="Image2ToDOM" class="image-link image2 is-viewable-img can-restack"><div class="image2-inset"><picture><source type="image/webp" srcset="https://substackcdn.com/image/fetch/$s_!q4q6!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F44cb5ca9-56d7-4d34-80ee-62a0ec995413_864x1092.png 424w, https://substackcdn.com/image/fetch/$s_!q4q6!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F44cb5ca9-56d7-4d34-80ee-62a0ec995413_864x1092.png 848w, https://substackcdn.com/image/fetch/$s_!q4q6!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F44cb5ca9-56d7-4d34-80ee-62a0ec995413_864x1092.png 1272w, https://substackcdn.com/image/fetch/$s_!q4q6!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F44cb5ca9-56d7-4d34-80ee-62a0ec995413_864x1092.png 1456w" sizes="100vw"/><img src="https://substackcdn.com/image/fetch/$s_!q4q6!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F44cb5ca9-56d7-4d34-80ee-62a0ec995413_864x1092.png" width="864" height="1092" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/44cb5ca9-56d7-4d34-80ee-62a0ec995413_864x1092.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:1092,&quot;width&quot;:864,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:74461,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" alt srcset="https://substackcdn.com/image/fetch/$s_!q4q6!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F44cb5ca9-56d7-4d34-80ee-62a0ec995413_864x1092.png 424w, https://substackcdn.com/image/fetch/$s_!q4q6!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F44cb5ca9-56d7-4d34-80ee-62a0ec995413_864x1092.png 848w, https://substackcdn.com/image/fetch/$s_!q4q6!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F44cb5ca9-56d7-4d34-80ee-62a0ec995413_864x1092.png 1272w, https://substackcdn.com/image/fetch/$s_!q4q6!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F44cb5ca9-56d7-4d34-80ee-62a0ec995413_864x1092.png 1456w" sizes="100vw" loading="lazy" class="sizing-normal"/></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p>Right off the bat, you have to choose a SLI type:</p><div class="captioned-image-container"><figure><a target="_blank" href="https://substackcdn.com/image/fetch/$s_!KFD3!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6fd5c8a8-46e5-4da2-937f-14448ea3a3f0_424x260.png" data-component-name="Image2ToDOM" class="image-link image2 is-viewable-img can-restack"><div class="image2-inset"><picture><source type="image/webp" srcset="https://substackcdn.com/image/fetch/$s_!KFD3!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6fd5c8a8-46e5-4da2-937f-14448ea3a3f0_424x260.png 424w, https://substackcdn.com/image/fetch/$s_!KFD3!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6fd5c8a8-46e5-4da2-937f-14448ea3a3f0_424x260.png 848w, https://substackcdn.com/image/fetch/$s_!KFD3!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6fd5c8a8-46e5-4da2-937f-14448ea3a3f0_424x260.png 1272w, https://substackcdn.com/image/fetch/$s_!KFD3!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6fd5c8a8-46e5-4da2-937f-14448ea3a3f0_424x260.png 1456w" sizes="100vw"/><img src="https://substackcdn.com/image/fetch/$s_!KFD3!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6fd5c8a8-46e5-4da2-937f-14448ea3a3f0_424x260.png" width="424" height="260" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/6fd5c8a8-46e5-4da2-937f-14448ea3a3f0_424x260.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:260,&quot;width&quot;:424,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:21278,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" alt srcset="https://substackcdn.com/image/fetch/$s_!KFD3!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6fd5c8a8-46e5-4da2-937f-14448ea3a3f0_424x260.png 424w, https://substackcdn.com/image/fetch/$s_!KFD3!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6fd5c8a8-46e5-4da2-937f-14448ea3a3f0_424x260.png 848w, https://substackcdn.com/image/fetch/$s_!KFD3!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6fd5c8a8-46e5-4da2-937f-14448ea3a3f0_424x260.png 1272w, https://substackcdn.com/image/fetch/$s_!KFD3!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6fd5c8a8-46e5-4da2-937f-14448ea3a3f0_424x260.png 1456w" sizes="100vw" loading="lazy" class="sizing-normal"/></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p><span>As </span><a href="https://blog.alexewerlof.com/p/sli">discussed before</a><span>, there are only 2 types of SLI:</span></p><ul><li><p>Event-based: count the percentage of good events in a period</p></li><li><p>Time-based: count the percentage of good timeslots in a period</p></li></ul><p>Later the UI Elastic has the “Budgeting Method” which tells me that the Elastic team is aware of the two SLI types:</p><div class="captioned-image-container"><figure><a target="_blank" href="https://substackcdn.com/image/fetch/$s_!X93B!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9075d5f9-b2e5-4d65-b8b2-92ce5ffdaae7_252x129.png" data-component-name="Image2ToDOM" class="image-link image2 can-restack"><div class="image2-inset"><picture><source type="image/webp" srcset="https://substackcdn.com/image/fetch/$s_!X93B!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9075d5f9-b2e5-4d65-b8b2-92ce5ffdaae7_252x129.png 424w, https://substackcdn.com/image/fetch/$s_!X93B!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9075d5f9-b2e5-4d65-b8b2-92ce5ffdaae7_252x129.png 848w, https://substackcdn.com/image/fetch/$s_!X93B!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9075d5f9-b2e5-4d65-b8b2-92ce5ffdaae7_252x129.png 1272w, https://substackcdn.com/image/fetch/$s_!X93B!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9075d5f9-b2e5-4d65-b8b2-92ce5ffdaae7_252x129.png 1456w" sizes="100vw"/><img src="https://substackcdn.com/image/fetch/$s_!X93B!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9075d5f9-b2e5-4d65-b8b2-92ce5ffdaae7_252x129.png" width="252" height="129" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/9075d5f9-b2e5-4d65-b8b2-92ce5ffdaae7_252x129.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:129,&quot;width&quot;:252,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:null,&quot;alt&quot;:&quot;&quot;,&quot;title&quot;:null,&quot;type&quot;:null,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" alt title srcset="https://substackcdn.com/image/fetch/$s_!X93B!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9075d5f9-b2e5-4d65-b8b2-92ce5ffdaae7_252x129.png 424w, https://substackcdn.com/image/fetch/$s_!X93B!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9075d5f9-b2e5-4d65-b8b2-92ce5ffdaae7_252x129.png 848w, https://substackcdn.com/image/fetch/$s_!X93B!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9075d5f9-b2e5-4d65-b8b2-92ce5ffdaae7_252x129.png 1272w, https://substackcdn.com/image/fetch/$s_!X93B!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9075d5f9-b2e5-4d65-b8b2-92ce5ffdaae7_252x129.png 1456w" sizes="100vw" loading="lazy" class="sizing-normal"/></picture><div></div></div></a></figure></div><p>The “SLI type” drop down seems unnecessarily complicated but as we’ll see shortly, Datadog is doing something similar. I’d drop the word “type” or use “templates” instead because where’s in the menu (latency, availability, etc.) are common SLI examples.</p><p>Let’s pick one and roll with it.</p><div class="captioned-image-container"><figure><a target="_blank" href="https://substackcdn.com/image/fetch/$s_!sVvt!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F323f7cb0-d4ce-4ca6-97a3-a9f66d078919_857x835.png" data-component-name="Image2ToDOM" class="image-link image2 is-viewable-img can-restack"><div class="image2-inset"><picture><source type="image/webp" srcset="https://substackcdn.com/image/fetch/$s_!sVvt!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F323f7cb0-d4ce-4ca6-97a3-a9f66d078919_857x835.png 424w, https://substackcdn.com/image/fetch/$s_!sVvt!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F323f7cb0-d4ce-4ca6-97a3-a9f66d078919_857x835.png 848w, https://substackcdn.com/image/fetch/$s_!sVvt!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F323f7cb0-d4ce-4ca6-97a3-a9f66d078919_857x835.png 1272w, https://substackcdn.com/image/fetch/$s_!sVvt!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F323f7cb0-d4ce-4ca6-97a3-a9f66d078919_857x835.png 1456w" sizes="100vw"/><img src="https://substackcdn.com/image/fetch/$s_!sVvt!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F323f7cb0-d4ce-4ca6-97a3-a9f66d078919_857x835.png" width="857" height="835" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/323f7cb0-d4ce-4ca6-97a3-a9f66d078919_857x835.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:835,&quot;width&quot;:857,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:70277,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" alt srcset="https://substackcdn.com/image/fetch/$s_!sVvt!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F323f7cb0-d4ce-4ca6-97a3-a9f66d078919_857x835.png 424w, https://substackcdn.com/image/fetch/$s_!sVvt!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F323f7cb0-d4ce-4ca6-97a3-a9f66d078919_857x835.png 848w, https://substackcdn.com/image/fetch/$s_!sVvt!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F323f7cb0-d4ce-4ca6-97a3-a9f66d078919_857x835.png 1272w, https://substackcdn.com/image/fetch/$s_!sVvt!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F323f7cb0-d4ce-4ca6-97a3-a9f66d078919_857x835.png 1456w" sizes="100vw" loading="lazy" class="sizing-normal"/></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p><span>It’s nice to see a live preview of the SLI. The </span><em>Threshold</em><span> field only allows setting the upper threshold:</span></p><div class="captioned-image-container"><figure><a target="_blank" href="https://substackcdn.com/image/fetch/$s_!_Iqg!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F99fe3f4b-d81c-4dc6-bfd9-e2bc2f399857_435x182.png" data-component-name="Image2ToDOM" class="image-link image2 can-restack"><div class="image2-inset"><picture><source type="image/webp" srcset="https://substackcdn.com/image/fetch/$s_!_Iqg!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F99fe3f4b-d81c-4dc6-bfd9-e2bc2f399857_435x182.png 424w, https://substackcdn.com/image/fetch/$s_!_Iqg!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F99fe3f4b-d81c-4dc6-bfd9-e2bc2f399857_435x182.png 848w, https://substackcdn.com/image/fetch/$s_!_Iqg!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F99fe3f4b-d81c-4dc6-bfd9-e2bc2f399857_435x182.png 1272w, https://substackcdn.com/image/fetch/$s_!_Iqg!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F99fe3f4b-d81c-4dc6-bfd9-e2bc2f399857_435x182.png 1456w" sizes="100vw"/><img src="https://substackcdn.com/image/fetch/$s_!_Iqg!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F99fe3f4b-d81c-4dc6-bfd9-e2bc2f399857_435x182.png" width="435" height="182" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/99fe3f4b-d81c-4dc6-bfd9-e2bc2f399857_435x182.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:182,&quot;width&quot;:435,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:18124,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" alt srcset="https://substackcdn.com/image/fetch/$s_!_Iqg!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F99fe3f4b-d81c-4dc6-bfd9-e2bc2f399857_435x182.png 424w, https://substackcdn.com/image/fetch/$s_!_Iqg!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F99fe3f4b-d81c-4dc6-bfd9-e2bc2f399857_435x182.png 848w, https://substackcdn.com/image/fetch/$s_!_Iqg!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F99fe3f4b-d81c-4dc6-bfd9-e2bc2f399857_435x182.png 1272w, https://substackcdn.com/image/fetch/$s_!_Iqg!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F99fe3f4b-d81c-4dc6-bfd9-e2bc2f399857_435x182.png 1456w" sizes="100vw" loading="lazy" class="sizing-normal"/></picture><div></div></div></a></figure></div><p><span>Aside from being upper-bound, the </span><a href="https://blog.alexewerlof.com/p/sli-good">definition of Good</a><span> may be lower-bound or even bound between two thresholds. Those options aren’t available.</span></p><p><em>Note: it is possible to convert any definition of good to look upper-bound. But that creates complexity that you’d expect your observability platform to handle out of the box.</em></p><p><span>There are 2 types of </span><a href="https://blog.alexewerlof.com/p/compliance-period">compliance period</a><span> (Time Window):</span></p><ul><li><p>Rolling: e.g. always check the last 30 days</p></li><li><p>Calendar-bound: e.g. check the budget in the current month</p></li></ul><p><span>In Elastic, your choice of </span><em>Duration</em><span> for rolling window</span><em>,</em><span> however, is limited to 7, 30, and 90 (just like Datadog).</span></p><div class="captioned-image-container"><figure><a target="_blank" href="https://substackcdn.com/image/fetch/$s_!30YG!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fdb274374-d1ec-43ac-94a8-fa9abced9360_571x182.png" data-component-name="Image2ToDOM" class="image-link image2 can-restack"><div class="image2-inset"><picture><source type="image/webp" srcset="https://substackcdn.com/image/fetch/$s_!30YG!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fdb274374-d1ec-43ac-94a8-fa9abced9360_571x182.png 424w, https://substackcdn.com/image/fetch/$s_!30YG!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fdb274374-d1ec-43ac-94a8-fa9abced9360_571x182.png 848w, https://substackcdn.com/image/fetch/$s_!30YG!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fdb274374-d1ec-43ac-94a8-fa9abced9360_571x182.png 1272w, https://substackcdn.com/image/fetch/$s_!30YG!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fdb274374-d1ec-43ac-94a8-fa9abced9360_571x182.png 1456w" sizes="100vw"/><img src="https://substackcdn.com/image/fetch/$s_!30YG!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fdb274374-d1ec-43ac-94a8-fa9abced9360_571x182.png" width="571" height="182" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/db274374-d1ec-43ac-94a8-fa9abced9360_571x182.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:182,&quot;width&quot;:571,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:15424,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" alt srcset="https://substackcdn.com/image/fetch/$s_!30YG!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fdb274374-d1ec-43ac-94a8-fa9abced9360_571x182.png 424w, https://substackcdn.com/image/fetch/$s_!30YG!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fdb274374-d1ec-43ac-94a8-fa9abced9360_571x182.png 848w, https://substackcdn.com/image/fetch/$s_!30YG!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fdb274374-d1ec-43ac-94a8-fa9abced9360_571x182.png 1272w, https://substackcdn.com/image/fetch/$s_!30YG!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fdb274374-d1ec-43ac-94a8-fa9abced9360_571x182.png 1456w" sizes="100vw" loading="lazy" class="sizing-normal"/></picture><div></div></div></a></figure></div><p>Grafana is the only one that allows any number and as we’ll discuss the most important missing option is 28 days.</p><p><span>Elastic is the only one in this review that supports </span><a href="https://blog.alexewerlof.com/p/compliance-period">Calendar-Bound SLO window</a><span>s out of the box.</span></p><p>Unfortunately, you have even fewer options: weekly and monthly.</p><p><span>Weekly is particularly tricky because different countries across the world </span><a href="https://en.wikipedia.org/wiki/Week">start the week on different days</a><span>:</span></p><div class="captioned-image-container"><figure><a target="_blank" href="https://substackcdn.com/image/fetch/$s_!qnLe!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa435e6af-fa4d-4f46-947f-fefc6fc9afab_2754x1398.svg" data-component-name="Image2ToDOM" class="image-link image2 is-viewable-img can-restack"><div class="image2-inset"><picture><source type="image/webp" srcset="https://substackcdn.com/image/fetch/$s_!qnLe!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa435e6af-fa4d-4f46-947f-fefc6fc9afab_2754x1398.svg 424w, https://substackcdn.com/image/fetch/$s_!qnLe!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa435e6af-fa4d-4f46-947f-fefc6fc9afab_2754x1398.svg 848w, https://substackcdn.com/image/fetch/$s_!qnLe!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa435e6af-fa4d-4f46-947f-fefc6fc9afab_2754x1398.svg 1272w, https://substackcdn.com/image/fetch/$s_!qnLe!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa435e6af-fa4d-4f46-947f-fefc6fc9afab_2754x1398.svg 1456w" sizes="100vw"/><img src="https://substackcdn.com/image/fetch/$s_!qnLe!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa435e6af-fa4d-4f46-947f-fefc6fc9afab_2754x1398.svg" width="1456" height="739" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/a435e6af-fa4d-4f46-947f-fefc6fc9afab_2754x1398.svg&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:739,&quot;width&quot;:1456,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:null,&quot;alt&quot;:&quot;wikipedia&quot;,&quot;title&quot;:null,&quot;type&quot;:null,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" alt="wikipedia" title="wikipedia" srcset="https://substackcdn.com/image/fetch/$s_!qnLe!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa435e6af-fa4d-4f46-947f-fefc6fc9afab_2754x1398.svg 424w, https://substackcdn.com/image/fetch/$s_!qnLe!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa435e6af-fa4d-4f46-947f-fefc6fc9afab_2754x1398.svg 848w, https://substackcdn.com/image/fetch/$s_!qnLe!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa435e6af-fa4d-4f46-947f-fefc6fc9afab_2754x1398.svg 1272w, https://substackcdn.com/image/fetch/$s_!qnLe!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa435e6af-fa4d-4f46-947f-fefc6fc9afab_2754x1398.svg 1456w" sizes="100vw" loading="lazy" class="sizing-normal"/></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a><figcaption class="image-caption">Orange: Monday, Blue: Sunday, Green: Saturday</figcaption></figure></div><p>Elastic does not allow invalid SLO targets like 0% or 100%. They do however allow ridiculously low numbers like 0.1 while blocking 0.0001:</p><div class="captioned-image-container"><figure><a target="_blank" href="https://substackcdn.com/image/fetch/$s_!CImK!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F711d5e1a-52ca-438e-b63f-b4737a9b0eb2_581x116.png" data-component-name="Image2ToDOM" class="image-link image2 can-restack"><div class="image2-inset"><picture><source type="image/webp" srcset="https://substackcdn.com/image/fetch/$s_!CImK!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F711d5e1a-52ca-438e-b63f-b4737a9b0eb2_581x116.png 424w, https://substackcdn.com/image/fetch/$s_!CImK!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F711d5e1a-52ca-438e-b63f-b4737a9b0eb2_581x116.png 848w, https://substackcdn.com/image/fetch/$s_!CImK!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F711d5e1a-52ca-438e-b63f-b4737a9b0eb2_581x116.png 1272w, https://substackcdn.com/image/fetch/$s_!CImK!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F711d5e1a-52ca-438e-b63f-b4737a9b0eb2_581x116.png 1456w" sizes="100vw"/><img src="https://substackcdn.com/image/fetch/$s_!CImK!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F711d5e1a-52ca-438e-b63f-b4737a9b0eb2_581x116.png" width="581" height="116" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/711d5e1a-52ca-438e-b63f-b4737a9b0eb2_581x116.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:116,&quot;width&quot;:581,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:8680,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" alt srcset="https://substackcdn.com/image/fetch/$s_!CImK!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F711d5e1a-52ca-438e-b63f-b4737a9b0eb2_581x116.png 424w, https://substackcdn.com/image/fetch/$s_!CImK!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F711d5e1a-52ca-438e-b63f-b4737a9b0eb2_581x116.png 848w, https://substackcdn.com/image/fetch/$s_!CImK!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F711d5e1a-52ca-438e-b63f-b4737a9b0eb2_581x116.png 1272w, https://substackcdn.com/image/fetch/$s_!CImK!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F711d5e1a-52ca-438e-b63f-b4737a9b0eb2_581x116.png 1456w" sizes="100vw" loading="lazy" class="sizing-normal"/></picture><div></div></div></a></figure></div><p>Similar issue exists for the upper end of the spectrum where a SLO of 6-nines is forbidden:</p><div class="captioned-image-container"><figure><a target="_blank" href="https://substackcdn.com/image/fetch/$s_!WUlu!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F992d9264-be1f-464a-b756-17404abe0684_581x116.png" data-component-name="Image2ToDOM" class="image-link image2 can-restack"><div class="image2-inset"><picture><source type="image/webp" srcset="https://substackcdn.com/image/fetch/$s_!WUlu!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F992d9264-be1f-464a-b756-17404abe0684_581x116.png 424w, https://substackcdn.com/image/fetch/$s_!WUlu!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F992d9264-be1f-464a-b756-17404abe0684_581x116.png 848w, https://substackcdn.com/image/fetch/$s_!WUlu!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F992d9264-be1f-464a-b756-17404abe0684_581x116.png 1272w, https://substackcdn.com/image/fetch/$s_!WUlu!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F992d9264-be1f-464a-b756-17404abe0684_581x116.png 1456w" sizes="100vw"/><img src="https://substackcdn.com/image/fetch/$s_!WUlu!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F992d9264-be1f-464a-b756-17404abe0684_581x116.png" width="581" height="116" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/992d9264-be1f-464a-b756-17404abe0684_581x116.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:116,&quot;width&quot;:581,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:null,&quot;alt&quot;:&quot;&quot;,&quot;title&quot;:null,&quot;type&quot;:null,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" alt title srcset="https://substackcdn.com/image/fetch/$s_!WUlu!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F992d9264-be1f-464a-b756-17404abe0684_581x116.png 424w, https://substackcdn.com/image/fetch/$s_!WUlu!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F992d9264-be1f-464a-b756-17404abe0684_581x116.png 848w, https://substackcdn.com/image/fetch/$s_!WUlu!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F992d9264-be1f-464a-b756-17404abe0684_581x116.png 1272w, https://substackcdn.com/image/fetch/$s_!WUlu!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F992d9264-be1f-464a-b756-17404abe0684_581x116.png 1456w" sizes="100vw" loading="lazy" class="sizing-normal"/></picture><div></div></div></a></figure></div><p><span>Admittedly, 6-nines is not very common (and has a </span><a href="https://blog.alexewerlof.com/p/10x9">high cost</a><span>) but I don’t see a reason why the tool should get in your way if that’s your SLO.</span></p><div data-component-name="DigestPostEmbed" class="digestPostEmbed-flwiST"><a href="https://blog.alexewerlof.com/p/10x9" rel="noopener" target="_blank"><div class="pencraft pc-display-flex pc-gap-16 pc-reset"><div style="width:70px;height:70px;" class="pencraft pc-reset"><picture><source type="image/webp" srcset="https://substackcdn.com/image/fetch/$s_!qHfL!,w_140,h_140,c_fill,f_webp,q_auto:good,fl_progressive:steep,g_auto/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa1d1a58d-cfed-4818-9a2d-125174277f54_1051x577.png"/><img src="https://substackcdn.com/image/fetch/$s_!qHfL!,w_140,h_140,c_fill,f_auto,q_auto:good,fl_progressive:steep,g_auto/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa1d1a58d-cfed-4818-9a2d-125174277f54_1051x577.png" sizes="100vw" alt="10x/9 Rule" width="140" height="140" class="img-OACg1c smSquare-NGbPBa pencraft pc-reset"/></picture></div><div class="pencraft pc-display-flex pc-flexDirection-column pc-reset"><h4 class="pencraft pc-reset color-pub-primary-text-NyXPlw line-height-24-jnGwiv font-display-nhmvtD size-20-P_cSRT weight-bold-DmI9lw reset-IxiVJZ">10x/9 Rule</h4><div class="pencraft pc-display-flex pc-gap-4 pc-alignItems-center pc-reset"><div class="pencraft pc-reset color-pub-secondary-text-hGQ02T line-height-20-t4M0El font-meta-MWBumP size-11-NuY2Zx weight-medium-fw81nC transform-uppercase-yKDgcq reset-IxiVJZ meta-EgzBVA"><a href="https://substack.com/profile/87732486-alex-ewerlof" class="inheritColor-WetTGJ">Alex Ewerlöf</a></div><div class="pencraft pc-reset color-pub-secondary-text-hGQ02T reset-IxiVJZ">·</div><div class="pencraft pc-reset color-pub-secondary-text-hGQ02T line-height-20-t4M0El font-meta-MWBumP size-11-NuY2Zx weight-medium-fw81nC transform-uppercase-yKDgcq reset-IxiVJZ meta-EgzBVA">December 1, 2023</div></div><div class="pencraft pc-display-flex pc-gap-16 pc-paddingTop-0 pc-paddingBottom-0 pc-alignItems-center pc-reset"><a href="https://blog.alexewerlof.com/p/10x9" class="pencraft pc-reset align-center-y7ZD4w line-height-20-t4M0El font-text-qe4AeH size-13-hZTUKr weight-medium-fw81nC reset-IxiVJZ"><div class="pencraft pc-display-flex pc-gap-8 pc-alignItems-center pc-reset link-HREYZo"><span class="pencraft pc-reset color-accent-BVX_7M line-height-20-t4M0El font-text-qe4AeH size-14-MLPa7j weight-semibold-uqA4FV reset-IxiVJZ">Read full story</span><svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-arrow-right"><path d="M5 12h14"></path><path d="m12 5 7 7-7 7"></path></svg></div></a></div></div></div></a></div><p>However, if their SLO implementation is limited to 3 fractional positions, that is a serious issue. Essentially you won’t be able to implement SLOs like 99.1234% because it’ll be truncated to 99.123%. I haven’t tested that. If you know more, please comment down below.</p><p>After you create a SLO, the waiting spinner starts rotating for a long time. In my test, I waited about 30 seconds before the SLO was created which is by far the longest in this review.</p><p>When it succeeds, your brand new SLO gets a default dashboard.</p><p>The bottom part of the page is interesting where you can see the good and bad events in a stacked bar chart:</p><div class="captioned-image-container"><figure><a target="_blank" href="https://substackcdn.com/image/fetch/$s_!ZwGv!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb8869951-20a9-4270-a71b-a8b07e246970_994x281.png" data-component-name="Image2ToDOM" class="image-link image2 is-viewable-img can-restack"><div class="image2-inset"><picture><source type="image/webp" srcset="https://substackcdn.com/image/fetch/$s_!ZwGv!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb8869951-20a9-4270-a71b-a8b07e246970_994x281.png 424w, https://substackcdn.com/image/fetch/$s_!ZwGv!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb8869951-20a9-4270-a71b-a8b07e246970_994x281.png 848w, https://substackcdn.com/image/fetch/$s_!ZwGv!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb8869951-20a9-4270-a71b-a8b07e246970_994x281.png 1272w, https://substackcdn.com/image/fetch/$s_!ZwGv!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb8869951-20a9-4270-a71b-a8b07e246970_994x281.png 1456w" sizes="100vw"/><img src="https://substackcdn.com/image/fetch/$s_!ZwGv!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb8869951-20a9-4270-a71b-a8b07e246970_994x281.png" width="994" height="281" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/b8869951-20a9-4270-a71b-a8b07e246970_994x281.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:281,&quot;width&quot;:994,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:28633,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" alt srcset="https://substackcdn.com/image/fetch/$s_!ZwGv!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb8869951-20a9-4270-a71b-a8b07e246970_994x281.png 424w, https://substackcdn.com/image/fetch/$s_!ZwGv!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb8869951-20a9-4270-a71b-a8b07e246970_994x281.png 848w, https://substackcdn.com/image/fetch/$s_!ZwGv!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb8869951-20a9-4270-a71b-a8b07e246970_994x281.png 1272w, https://substackcdn.com/image/fetch/$s_!ZwGv!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb8869951-20a9-4270-a71b-a8b07e246970_994x281.png 1456w" sizes="100vw" loading="lazy" class="sizing-normal"/></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p><span>You can also see the Burn Rate and Historical SLI (which I call SLS for </span><a href="https://blog.alexewerlof.com/p/sls">Service Level Status</a><span>).</span></p><p>Elastic does not create alerts by default despite me setting a target for the SLO. This is a flaw they share with Datadog.</p><p>Without Alerting, there is no commitment towards the SLO. SLOs are important enough to nudge the user to create alerts in the initial SLO configuration screen.</p><p><span>Fortunately, creating an alert is just a click away (as mentioned in their </span><a href="https://www.elastic.co/guide/en/observability/current/slo-create.html">SLO creation documentation</a><span>):</span></p><div class="captioned-image-container"><figure><a target="_blank" href="https://substackcdn.com/image/fetch/$s_!bgGH!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fdc367740-84bf-422f-9a07-6bd91ca8f698_252x348.png" data-component-name="Image2ToDOM" class="image-link image2 is-viewable-img can-restack"><div class="image2-inset"><picture><source type="image/webp" srcset="https://substackcdn.com/image/fetch/$s_!bgGH!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fdc367740-84bf-422f-9a07-6bd91ca8f698_252x348.png 424w, https://substackcdn.com/image/fetch/$s_!bgGH!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fdc367740-84bf-422f-9a07-6bd91ca8f698_252x348.png 848w, https://substackcdn.com/image/fetch/$s_!bgGH!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fdc367740-84bf-422f-9a07-6bd91ca8f698_252x348.png 1272w, https://substackcdn.com/image/fetch/$s_!bgGH!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fdc367740-84bf-422f-9a07-6bd91ca8f698_252x348.png 1456w" sizes="100vw"/><img src="https://substackcdn.com/image/fetch/$s_!bgGH!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fdc367740-84bf-422f-9a07-6bd91ca8f698_252x348.png" width="252" height="348" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/dc367740-84bf-422f-9a07-6bd91ca8f698_252x348.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:348,&quot;width&quot;:252,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:18272,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" alt srcset="https://substackcdn.com/image/fetch/$s_!bgGH!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fdc367740-84bf-422f-9a07-6bd91ca8f698_252x348.png 424w, https://substackcdn.com/image/fetch/$s_!bgGH!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fdc367740-84bf-422f-9a07-6bd91ca8f698_252x348.png 848w, https://substackcdn.com/image/fetch/$s_!bgGH!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fdc367740-84bf-422f-9a07-6bd91ca8f698_252x348.png 1272w, https://substackcdn.com/image/fetch/$s_!bgGH!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fdc367740-84bf-422f-9a07-6bd91ca8f698_252x348.png 1456w" sizes="100vw" loading="lazy" class="sizing-normal"/></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p>The alerting setup for burn rate looks intimidating and complete:</p><div class="captioned-image-container"><figure><a target="_blank" href="https://substackcdn.com/image/fetch/$s_!hn3D!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc630cbb0-2129-4367-a4e2-ae96d80d6e5f_592x976.png" data-component-name="Image2ToDOM" class="image-link image2 is-viewable-img can-restack"><div class="image2-inset"><picture><source type="image/webp" srcset="https://substackcdn.com/image/fetch/$s_!hn3D!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc630cbb0-2129-4367-a4e2-ae96d80d6e5f_592x976.png 424w, https://substackcdn.com/image/fetch/$s_!hn3D!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc630cbb0-2129-4367-a4e2-ae96d80d6e5f_592x976.png 848w, https://substackcdn.com/image/fetch/$s_!hn3D!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc630cbb0-2129-4367-a4e2-ae96d80d6e5f_592x976.png 1272w, https://substackcdn.com/image/fetch/$s_!hn3D!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc630cbb0-2129-4367-a4e2-ae96d80d6e5f_592x976.png 1456w" sizes="100vw"/><img src="https://substackcdn.com/image/fetch/$s_!hn3D!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc630cbb0-2129-4367-a4e2-ae96d80d6e5f_592x976.png" width="592" height="976" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/c630cbb0-2129-4367-a4e2-ae96d80d6e5f_592x976.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:976,&quot;width&quot;:592,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:106048,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" alt srcset="https://substackcdn.com/image/fetch/$s_!hn3D!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc630cbb0-2129-4367-a4e2-ae96d80d6e5f_592x976.png 424w, https://substackcdn.com/image/fetch/$s_!hn3D!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc630cbb0-2129-4367-a4e2-ae96d80d6e5f_592x976.png 848w, https://substackcdn.com/image/fetch/$s_!hn3D!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc630cbb0-2129-4367-a4e2-ae96d80d6e5f_592x976.png 1272w, https://substackcdn.com/image/fetch/$s_!hn3D!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc630cbb0-2129-4367-a4e2-ae96d80d6e5f_592x976.png 1456w" sizes="100vw" loading="lazy" class="sizing-normal"/></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p>It’s a nice touch that Elastic prefills the multi-burn rate alerts with decent default values.</p><p><span>But once you look closer, you realize that the config for short lookback alert window is missing. This feature is important for reducing false alerts as pointed out in </span><a href="https://sre.google/workbook/alerting-on-slos/">Google’s SRE book</a><span>.</span></p><p><span>Elastic </span><a href="https://www.elastic.co/guide/en/observability/current/slo-burn-rate-alert.html">SLO Alerting documentation</a><span> states:</span></p><blockquote><p>Your short lookback period is set automatically.</p></blockquote><p>Google recommends 1/12th of the long window and I’m guessing that’s what they’re going for. Hard to tell. The docs are 🤐 on that.</p><p>I also really like that Elastic allows switching between Burn Rate and burn percentage with the flip of a button:</p><div class="captioned-image-container"><figure><a target="_blank" href="https://substackcdn.com/image/fetch/$s_!PO_Y!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F51f5f290-4e87-4db4-975f-38efec2c25b7_592x431.png" data-component-name="Image2ToDOM" class="image-link image2 is-viewable-img can-restack"><div class="image2-inset"><picture><source type="image/webp" srcset="https://substackcdn.com/image/fetch/$s_!PO_Y!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F51f5f290-4e87-4db4-975f-38efec2c25b7_592x431.png 424w, https://substackcdn.com/image/fetch/$s_!PO_Y!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F51f5f290-4e87-4db4-975f-38efec2c25b7_592x431.png 848w, https://substackcdn.com/image/fetch/$s_!PO_Y!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F51f5f290-4e87-4db4-975f-38efec2c25b7_592x431.png 1272w, https://substackcdn.com/image/fetch/$s_!PO_Y!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F51f5f290-4e87-4db4-975f-38efec2c25b7_592x431.png 1456w" sizes="100vw"/><img src="https://substackcdn.com/image/fetch/$s_!PO_Y!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F51f5f290-4e87-4db4-975f-38efec2c25b7_592x431.png" width="592" height="431" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/51f5f290-4e87-4db4-975f-38efec2c25b7_592x431.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:431,&quot;width&quot;:592,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:66529,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" alt srcset="https://substackcdn.com/image/fetch/$s_!PO_Y!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F51f5f290-4e87-4db4-975f-38efec2c25b7_592x431.png 424w, https://substackcdn.com/image/fetch/$s_!PO_Y!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F51f5f290-4e87-4db4-975f-38efec2c25b7_592x431.png 848w, https://substackcdn.com/image/fetch/$s_!PO_Y!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F51f5f290-4e87-4db4-975f-38efec2c25b7_592x431.png 1272w, https://substackcdn.com/image/fetch/$s_!PO_Y!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F51f5f290-4e87-4db4-975f-38efec2c25b7_592x431.png 1456w" sizes="100vw" loading="lazy" class="sizing-normal"/></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p><span>However, for the life of me I cannot understand it. As you can see in </span><a href="https://slc.alexewerlof.com/">SLC</a><span>, you need to set both the burn rate and error budget consumption percentage. Elastic seems to automatically set that value (as seen in the grey text).</span></p><div class="captioned-image-container"><figure><a target="_blank" href="https://substackcdn.com/image/fetch/$s_!1lw8!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F14257feb-befb-4ffd-985f-0dcf9b7b6b7f_557x1001.png" data-component-name="Image2ToDOM" class="image-link image2 is-viewable-img can-restack"><div class="image2-inset"><picture><source type="image/webp" srcset="https://substackcdn.com/image/fetch/$s_!1lw8!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F14257feb-befb-4ffd-985f-0dcf9b7b6b7f_557x1001.png 424w, https://substackcdn.com/image/fetch/$s_!1lw8!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F14257feb-befb-4ffd-985f-0dcf9b7b6b7f_557x1001.png 848w, https://substackcdn.com/image/fetch/$s_!1lw8!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F14257feb-befb-4ffd-985f-0dcf9b7b6b7f_557x1001.png 1272w, https://substackcdn.com/image/fetch/$s_!1lw8!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F14257feb-befb-4ffd-985f-0dcf9b7b6b7f_557x1001.png 1456w" sizes="100vw"/><img src="https://substackcdn.com/image/fetch/$s_!1lw8!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F14257feb-befb-4ffd-985f-0dcf9b7b6b7f_557x1001.png" width="557" height="1001" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/14257feb-befb-4ffd-985f-0dcf9b7b6b7f_557x1001.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:1001,&quot;width&quot;:557,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:69278,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" alt srcset="https://substackcdn.com/image/fetch/$s_!1lw8!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F14257feb-befb-4ffd-985f-0dcf9b7b6b7f_557x1001.png 424w, https://substackcdn.com/image/fetch/$s_!1lw8!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F14257feb-befb-4ffd-985f-0dcf9b7b6b7f_557x1001.png 848w, https://substackcdn.com/image/fetch/$s_!1lw8!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F14257feb-befb-4ffd-985f-0dcf9b7b6b7f_557x1001.png 1272w, https://substackcdn.com/image/fetch/$s_!1lw8!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F14257feb-befb-4ffd-985f-0dcf9b7b6b7f_557x1001.png 1456w" sizes="100vw" loading="lazy" class="sizing-normal"/></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p>Like regular alerts, Elastic offers a wide range of notifications and actions when the SLO alert goes off.</p><h1 class="header-anchor-post">Datadog<div class="pencraft pc-display-flex pc-alignItems-center pc-position-absolute pc-reset header-anchor-parent"><div class="pencraft pc-display-contents pc-reset pubTheme-yiXxQA"><div id="§datadog" class="pencraft pc-reset header-anchor offset-top"></div><button tabindex="0" type="button" aria-label="Link" data-href="https://blog.alexewerlof.com/i/148723414/datadog" class="pencraft pc-reset pencraft iconButton-mq_Et5 iconButtonBase-dJGHgN buttonBase-GK1x3M buttonStyle-r7yGCK size_sm-G3LciD priority_secondary-S63h9o"><svg xmlns="http://www.w3.org/2000/svg" width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-link"><path d="M10 13a5 5 0 0 0 7.54.54l3-3a5 5 0 0 0-7.07-7.07l-1.72 1.71"></path><path d="M14 11a5 5 0 0 0-7.54-.54l-3 3a5 5 0 0 0 7.07 7.07l1.71-1.71"></path></svg></button></div></div></h1><p><span>Datadog’s Service Level feature is under </span><em>Service Mgmt</em><span> menu (which if you’re wondering, stands for “Service Management” in a world where the UX team wins the battle over UI designers): 😁</span></p><div class="captioned-image-container"><figure><a target="_blank" href="https://substackcdn.com/image/fetch/$s_!mqgo!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F415a7657-2856-412b-8eea-7975e4e4d0da_614x932.png" data-component-name="Image2ToDOM" class="image-link image2 is-viewable-img can-restack"><div class="image2-inset"><picture><source type="image/webp" srcset="https://substackcdn.com/image/fetch/$s_!mqgo!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F415a7657-2856-412b-8eea-7975e4e4d0da_614x932.png 424w, https://substackcdn.com/image/fetch/$s_!mqgo!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F415a7657-2856-412b-8eea-7975e4e4d0da_614x932.png 848w, https://substackcdn.com/image/fetch/$s_!mqgo!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F415a7657-2856-412b-8eea-7975e4e4d0da_614x932.png 1272w, https://substackcdn.com/image/fetch/$s_!mqgo!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F415a7657-2856-412b-8eea-7975e4e4d0da_614x932.png 1456w" sizes="100vw"/><img src="https://substackcdn.com/image/fetch/$s_!mqgo!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F415a7657-2856-412b-8eea-7975e4e4d0da_614x932.png" width="614" height="932" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/415a7657-2856-412b-8eea-7975e4e4d0da_614x932.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:932,&quot;width&quot;:614,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:158897,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" alt srcset="https://substackcdn.com/image/fetch/$s_!mqgo!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F415a7657-2856-412b-8eea-7975e4e4d0da_614x932.png 424w, https://substackcdn.com/image/fetch/$s_!mqgo!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F415a7657-2856-412b-8eea-7975e4e4d0da_614x932.png 848w, https://substackcdn.com/image/fetch/$s_!mqgo!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F415a7657-2856-412b-8eea-7975e4e4d0da_614x932.png 1272w, https://substackcdn.com/image/fetch/$s_!mqgo!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F415a7657-2856-412b-8eea-7975e4e4d0da_614x932.png 1456w" sizes="100vw" loading="lazy" class="sizing-normal"/></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p><span>Before digging into UI, I just want to call out their </span><a href="https://www.datadoghq.com/product/service-level-objectives/">excellent</a><span> </span><a href="https://www.datadoghq.com/blog/establishing-service-level-objectives/">documentation</a><span> on the topic completed with </span><a href="https://www.datadoghq.com/ebook/the-telegraph-slis-slos/">an ebook</a><span>.</span></p><p>Just like Elastic, Datadog uses a single 3-step screen for setting the SLO:</p><div class="captioned-image-container"><figure><a target="_blank" href="https://substackcdn.com/image/fetch/$s_!K6yc!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9e7fc218-e007-4495-af34-ad0b1e5cfac7_1348x1215.png" data-component-name="Image2ToDOM" class="image-link image2 is-viewable-img can-restack"><div class="image2-inset"><picture><source type="image/webp" srcset="https://substackcdn.com/image/fetch/$s_!K6yc!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9e7fc218-e007-4495-af34-ad0b1e5cfac7_1348x1215.png 424w, https://substackcdn.com/image/fetch/$s_!K6yc!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9e7fc218-e007-4495-af34-ad0b1e5cfac7_1348x1215.png 848w, https://substackcdn.com/image/fetch/$s_!K6yc!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9e7fc218-e007-4495-af34-ad0b1e5cfac7_1348x1215.png 1272w, https://substackcdn.com/image/fetch/$s_!K6yc!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9e7fc218-e007-4495-af34-ad0b1e5cfac7_1348x1215.png 1456w" sizes="100vw"/><img src="https://substackcdn.com/image/fetch/$s_!K6yc!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9e7fc218-e007-4495-af34-ad0b1e5cfac7_1348x1215.png" width="1348" height="1215" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/9e7fc218-e007-4495-af34-ad0b1e5cfac7_1348x1215.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:1215,&quot;width&quot;:1348,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:126394,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" alt srcset="https://substackcdn.com/image/fetch/$s_!K6yc!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9e7fc218-e007-4495-af34-ad0b1e5cfac7_1348x1215.png 424w, https://substackcdn.com/image/fetch/$s_!K6yc!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9e7fc218-e007-4495-af34-ad0b1e5cfac7_1348x1215.png 848w, https://substackcdn.com/image/fetch/$s_!K6yc!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9e7fc218-e007-4495-af34-ad0b1e5cfac7_1348x1215.png 1272w, https://substackcdn.com/image/fetch/$s_!K6yc!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9e7fc218-e007-4495-af34-ad0b1e5cfac7_1348x1215.png 1456w" sizes="100vw" loading="lazy" class="sizing-normal"/></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p>If I recall correctly, Datadog had the SLO feature way ahead of the pack whereas Elastic recently introduced it. So it’s up to you to guess who has copied whom. I mean, one of them could pick a different style for the 3 step numbering?</p><div class="captioned-image-container"><figure><a target="_blank" href="https://substackcdn.com/image/fetch/$s_!aXrn!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F143a4712-6d68-46d8-9ad8-6ceb3f33c22c_787x696.png" data-component-name="Image2ToDOM" class="image-link image2 is-viewable-img can-restack"><div class="image2-inset"><picture><source type="image/webp" srcset="https://substackcdn.com/image/fetch/$s_!aXrn!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F143a4712-6d68-46d8-9ad8-6ceb3f33c22c_787x696.png 424w, https://substackcdn.com/image/fetch/$s_!aXrn!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F143a4712-6d68-46d8-9ad8-6ceb3f33c22c_787x696.png 848w, https://substackcdn.com/image/fetch/$s_!aXrn!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F143a4712-6d68-46d8-9ad8-6ceb3f33c22c_787x696.png 1272w, https://substackcdn.com/image/fetch/$s_!aXrn!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F143a4712-6d68-46d8-9ad8-6ceb3f33c22c_787x696.png 1456w" sizes="100vw"/><img src="https://substackcdn.com/image/fetch/$s_!aXrn!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F143a4712-6d68-46d8-9ad8-6ceb3f33c22c_787x696.png" width="787" height="696" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/143a4712-6d68-46d8-9ad8-6ceb3f33c22c_787x696.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:696,&quot;width&quot;:787,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:51473,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" alt srcset="https://substackcdn.com/image/fetch/$s_!aXrn!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F143a4712-6d68-46d8-9ad8-6ceb3f33c22c_787x696.png 424w, https://substackcdn.com/image/fetch/$s_!aXrn!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F143a4712-6d68-46d8-9ad8-6ceb3f33c22c_787x696.png 848w, https://substackcdn.com/image/fetch/$s_!aXrn!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F143a4712-6d68-46d8-9ad8-6ceb3f33c22c_787x696.png 1272w, https://substackcdn.com/image/fetch/$s_!aXrn!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F143a4712-6d68-46d8-9ad8-6ceb3f33c22c_787x696.png 1456w" sizes="100vw" loading="lazy" class="sizing-normal"/></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a><figcaption class="image-caption">One of these is a copycat, can you tell which one? 😁</figcaption></figure></div><p><span>SLI can either be </span><a href="https://blog.alexewerlof.com/p/sli">time-based or event-based</a><span>. Datadog offers two time-based SLIs:</span></p><ul><li><p><span>By monitor uptime: requires having set up a </span><a href="https://docs.datadoghq.com/getting_started/monitors/">monitor</a><span> (an Alerting Rule)</span></p></li><li><p>By time slices</p></li></ul><p>When it comes to evaluating the monitor (Datadog lingo for Alerting rules), it has the same limited choices as Elastic: 7, 30, and 90.</p><div class="captioned-image-container"><figure><a target="_blank" href="https://substackcdn.com/image/fetch/$s_!6en2!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fd5303fcf-7d23-4ed9-840f-725a04ab28a2_513x194.png" data-component-name="Image2ToDOM" class="image-link image2 can-restack"><div class="image2-inset"><picture><source type="image/webp" srcset="https://substackcdn.com/image/fetch/$s_!6en2!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fd5303fcf-7d23-4ed9-840f-725a04ab28a2_513x194.png 424w, https://substackcdn.com/image/fetch/$s_!6en2!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fd5303fcf-7d23-4ed9-840f-725a04ab28a2_513x194.png 848w, https://substackcdn.com/image/fetch/$s_!6en2!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fd5303fcf-7d23-4ed9-840f-725a04ab28a2_513x194.png 1272w, https://substackcdn.com/image/fetch/$s_!6en2!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fd5303fcf-7d23-4ed9-840f-725a04ab28a2_513x194.png 1456w" sizes="100vw"/><img src="https://substackcdn.com/image/fetch/$s_!6en2!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fd5303fcf-7d23-4ed9-840f-725a04ab28a2_513x194.png" width="513" height="194" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/d5303fcf-7d23-4ed9-840f-725a04ab28a2_513x194.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:194,&quot;width&quot;:513,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:19973,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" alt srcset="https://substackcdn.com/image/fetch/$s_!6en2!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fd5303fcf-7d23-4ed9-840f-725a04ab28a2_513x194.png 424w, https://substackcdn.com/image/fetch/$s_!6en2!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fd5303fcf-7d23-4ed9-840f-725a04ab28a2_513x194.png 848w, https://substackcdn.com/image/fetch/$s_!6en2!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fd5303fcf-7d23-4ed9-840f-725a04ab28a2_513x194.png 1272w, https://substackcdn.com/image/fetch/$s_!6en2!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fd5303fcf-7d23-4ed9-840f-725a04ab28a2_513x194.png 1456w" sizes="100vw" loading="lazy" class="sizing-normal"/></picture><div></div></div></a></figure></div><p>I do like the live preview of the monitor uptime however (Elastic has this feature too):</p><div class="captioned-image-container"><figure><a target="_blank" href="https://substackcdn.com/image/fetch/$s_!9_T9!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F2f8e2227-8b6e-459a-8151-f89f47a2b776_1429x215.png" data-component-name="Image2ToDOM" class="image-link image2 can-restack"><div class="image2-inset"><picture><source type="image/webp" srcset="https://substackcdn.com/image/fetch/$s_!9_T9!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F2f8e2227-8b6e-459a-8151-f89f47a2b776_1429x215.png 424w, https://substackcdn.com/image/fetch/$s_!9_T9!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F2f8e2227-8b6e-459a-8151-f89f47a2b776_1429x215.png 848w, https://substackcdn.com/image/fetch/$s_!9_T9!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F2f8e2227-8b6e-459a-8151-f89f47a2b776_1429x215.png 1272w, https://substackcdn.com/image/fetch/$s_!9_T9!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F2f8e2227-8b6e-459a-8151-f89f47a2b776_1429x215.png 1456w" sizes="100vw"/><img src="https://substackcdn.com/image/fetch/$s_!9_T9!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F2f8e2227-8b6e-459a-8151-f89f47a2b776_1429x215.png" width="1429" height="215" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/2f8e2227-8b6e-459a-8151-f89f47a2b776_1429x215.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:215,&quot;width&quot;:1429,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:44815,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" alt srcset="https://substackcdn.com/image/fetch/$s_!9_T9!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F2f8e2227-8b6e-459a-8151-f89f47a2b776_1429x215.png 424w, https://substackcdn.com/image/fetch/$s_!9_T9!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F2f8e2227-8b6e-459a-8151-f89f47a2b776_1429x215.png 848w, https://substackcdn.com/image/fetch/$s_!9_T9!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F2f8e2227-8b6e-459a-8151-f89f47a2b776_1429x215.png 1272w, https://substackcdn.com/image/fetch/$s_!9_T9!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F2f8e2227-8b6e-459a-8151-f89f47a2b776_1429x215.png 1456w" sizes="100vw" loading="lazy" class="sizing-normal"/></picture><div></div></div></a></figure></div><p>For event-based SLIs (or “By Count” as Datadog calls it), you can choose two metrics for Good/Total Events:</p><div class="captioned-image-container"><figure><a target="_blank" href="https://substackcdn.com/image/fetch/$s_!fCz3!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F11f19ccb-d2ab-44e4-9799-090b52805438_1415x601.png" data-component-name="Image2ToDOM" class="image-link image2 is-viewable-img can-restack"><div class="image2-inset"><picture><source type="image/webp" srcset="https://substackcdn.com/image/fetch/$s_!fCz3!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F11f19ccb-d2ab-44e4-9799-090b52805438_1415x601.png 424w, https://substackcdn.com/image/fetch/$s_!fCz3!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F11f19ccb-d2ab-44e4-9799-090b52805438_1415x601.png 848w, https://substackcdn.com/image/fetch/$s_!fCz3!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F11f19ccb-d2ab-44e4-9799-090b52805438_1415x601.png 1272w, https://substackcdn.com/image/fetch/$s_!fCz3!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F11f19ccb-d2ab-44e4-9799-090b52805438_1415x601.png 1456w" sizes="100vw"/><img src="https://substackcdn.com/image/fetch/$s_!fCz3!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F11f19ccb-d2ab-44e4-9799-090b52805438_1415x601.png" width="1415" height="601" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/11f19ccb-d2ab-44e4-9799-090b52805438_1415x601.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:601,&quot;width&quot;:1415,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:104202,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" alt srcset="https://substackcdn.com/image/fetch/$s_!fCz3!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F11f19ccb-d2ab-44e4-9799-090b52805438_1415x601.png 424w, https://substackcdn.com/image/fetch/$s_!fCz3!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F11f19ccb-d2ab-44e4-9799-090b52805438_1415x601.png 848w, https://substackcdn.com/image/fetch/$s_!fCz3!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F11f19ccb-d2ab-44e4-9799-090b52805438_1415x601.png 1272w, https://substackcdn.com/image/fetch/$s_!fCz3!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F11f19ccb-d2ab-44e4-9799-090b52805438_1415x601.png 1456w" sizes="100vw" loading="lazy" class="sizing-normal"/></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p><span>This is a </span><a href="https://blog.alexewerlof.com/p/sli-heterogeneous-vs-homogeneous">heterogeneous SLI</a><span> (when the two metrics aren’t tightly coupled). Heterogeneous SLIs are easier to implement in an already existing observability platform—”just give me 2 metrics”.</span></p><p>But in practice, they can be hard to reason about as clearly demonstrated with this funny error message:</p><div class="captioned-image-container"><figure><a target="_blank" href="https://substackcdn.com/image/fetch/$s_!3zf1!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F604dee2c-cd7a-477d-a1a1-0c9c9a471d87_621x161.png" data-component-name="Image2ToDOM" class="image-link image2 can-restack"><div class="image2-inset"><picture><source type="image/webp" srcset="https://substackcdn.com/image/fetch/$s_!3zf1!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F604dee2c-cd7a-477d-a1a1-0c9c9a471d87_621x161.png 424w, https://substackcdn.com/image/fetch/$s_!3zf1!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F604dee2c-cd7a-477d-a1a1-0c9c9a471d87_621x161.png 848w, https://substackcdn.com/image/fetch/$s_!3zf1!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F604dee2c-cd7a-477d-a1a1-0c9c9a471d87_621x161.png 1272w, https://substackcdn.com/image/fetch/$s_!3zf1!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F604dee2c-cd7a-477d-a1a1-0c9c9a471d87_621x161.png 1456w" sizes="100vw"/><img src="https://substackcdn.com/image/fetch/$s_!3zf1!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F604dee2c-cd7a-477d-a1a1-0c9c9a471d87_621x161.png" width="621" height="161" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/604dee2c-cd7a-477d-a1a1-0c9c9a471d87_621x161.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:161,&quot;width&quot;:621,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:18362,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" alt srcset="https://substackcdn.com/image/fetch/$s_!3zf1!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F604dee2c-cd7a-477d-a1a1-0c9c9a471d87_621x161.png 424w, https://substackcdn.com/image/fetch/$s_!3zf1!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F604dee2c-cd7a-477d-a1a1-0c9c9a471d87_621x161.png 848w, https://substackcdn.com/image/fetch/$s_!3zf1!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F604dee2c-cd7a-477d-a1a1-0c9c9a471d87_621x161.png 1272w, https://substackcdn.com/image/fetch/$s_!3zf1!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F604dee2c-cd7a-477d-a1a1-0c9c9a471d87_621x161.png 1456w" sizes="100vw" loading="lazy" class="sizing-normal"/></picture><div></div></div></a></figure></div><p><span>Personally, I prefer the </span><a href="https://blog.alexewerlof.com/p/sli-heterogeneous-vs-homogeneous">homogeneous SLIs</a><span> where there is one metric that can be processed to identify good events.</span></p><p>Even though you can pick Good/Total, the live preview shows Good/Bad:</p><div class="captioned-image-container"><figure><a target="_blank" href="https://substackcdn.com/image/fetch/$s_!xmm9!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F99049844-7ad3-45d0-a976-3fcc814aa864_1406x590.png" data-component-name="Image2ToDOM" class="image-link image2 is-viewable-img can-restack"><div class="image2-inset"><picture><source type="image/webp" srcset="https://substackcdn.com/image/fetch/$s_!xmm9!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F99049844-7ad3-45d0-a976-3fcc814aa864_1406x590.png 424w, https://substackcdn.com/image/fetch/$s_!xmm9!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F99049844-7ad3-45d0-a976-3fcc814aa864_1406x590.png 848w, https://substackcdn.com/image/fetch/$s_!xmm9!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F99049844-7ad3-45d0-a976-3fcc814aa864_1406x590.png 1272w, https://substackcdn.com/image/fetch/$s_!xmm9!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F99049844-7ad3-45d0-a976-3fcc814aa864_1406x590.png 1456w" sizes="100vw"/><img src="https://substackcdn.com/image/fetch/$s_!xmm9!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F99049844-7ad3-45d0-a976-3fcc814aa864_1406x590.png" width="1406" height="590" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/99049844-7ad3-45d0-a976-3fcc814aa864_1406x590.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:590,&quot;width&quot;:1406,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:101480,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" alt srcset="https://substackcdn.com/image/fetch/$s_!xmm9!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F99049844-7ad3-45d0-a976-3fcc814aa864_1406x590.png 424w, https://substackcdn.com/image/fetch/$s_!xmm9!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F99049844-7ad3-45d0-a976-3fcc814aa864_1406x590.png 848w, https://substackcdn.com/image/fetch/$s_!xmm9!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F99049844-7ad3-45d0-a976-3fcc814aa864_1406x590.png 1272w, https://substackcdn.com/image/fetch/$s_!xmm9!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F99049844-7ad3-45d0-a976-3fcc814aa864_1406x590.png 1456w" sizes="100vw" loading="lazy" class="sizing-normal"/></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p>Datadog doesn’t allow invalid SLOs like 0% or 100%:</p><div class="captioned-image-container"><figure><a target="_blank" href="https://substackcdn.com/image/fetch/$s_!mmWt!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb8d38ae0-0112-4a1a-8d2a-ef4e80aa2558_702x93.png" data-component-name="Image2ToDOM" class="image-link image2 can-restack"><div class="image2-inset"><picture><source type="image/webp" srcset="https://substackcdn.com/image/fetch/$s_!mmWt!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb8d38ae0-0112-4a1a-8d2a-ef4e80aa2558_702x93.png 424w, https://substackcdn.com/image/fetch/$s_!mmWt!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb8d38ae0-0112-4a1a-8d2a-ef4e80aa2558_702x93.png 848w, https://substackcdn.com/image/fetch/$s_!mmWt!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb8d38ae0-0112-4a1a-8d2a-ef4e80aa2558_702x93.png 1272w, https://substackcdn.com/image/fetch/$s_!mmWt!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb8d38ae0-0112-4a1a-8d2a-ef4e80aa2558_702x93.png 1456w" sizes="100vw"/><img src="https://substackcdn.com/image/fetch/$s_!mmWt!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb8d38ae0-0112-4a1a-8d2a-ef4e80aa2558_702x93.png" width="702" height="93" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/b8d38ae0-0112-4a1a-8d2a-ef4e80aa2558_702x93.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:93,&quot;width&quot;:702,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:16125,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" alt srcset="https://substackcdn.com/image/fetch/$s_!mmWt!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb8d38ae0-0112-4a1a-8d2a-ef4e80aa2558_702x93.png 424w, https://substackcdn.com/image/fetch/$s_!mmWt!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb8d38ae0-0112-4a1a-8d2a-ef4e80aa2558_702x93.png 848w, https://substackcdn.com/image/fetch/$s_!mmWt!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb8d38ae0-0112-4a1a-8d2a-ef4e80aa2558_702x93.png 1272w, https://substackcdn.com/image/fetch/$s_!mmWt!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb8d38ae0-0112-4a1a-8d2a-ef4e80aa2558_702x93.png 1456w" sizes="100vw" loading="lazy" class="sizing-normal"/></picture><div></div></div></a></figure></div><div class="captioned-image-container"><figure><a target="_blank" href="https://substackcdn.com/image/fetch/$s_!iTzQ!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F68c0f614-d9f6-47fa-a323-660dbf940b80_702x93.png" data-component-name="Image2ToDOM" class="image-link image2 can-restack"><div class="image2-inset"><picture><source type="image/webp" srcset="https://substackcdn.com/image/fetch/$s_!iTzQ!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F68c0f614-d9f6-47fa-a323-660dbf940b80_702x93.png 424w, https://substackcdn.com/image/fetch/$s_!iTzQ!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F68c0f614-d9f6-47fa-a323-660dbf940b80_702x93.png 848w, https://substackcdn.com/image/fetch/$s_!iTzQ!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F68c0f614-d9f6-47fa-a323-660dbf940b80_702x93.png 1272w, https://substackcdn.com/image/fetch/$s_!iTzQ!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F68c0f614-d9f6-47fa-a323-660dbf940b80_702x93.png 1456w" sizes="100vw"/><img src="https://substackcdn.com/image/fetch/$s_!iTzQ!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F68c0f614-d9f6-47fa-a323-660dbf940b80_702x93.png" width="702" height="93" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/68c0f614-d9f6-47fa-a323-660dbf940b80_702x93.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:93,&quot;width&quot;:702,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:15992,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" alt srcset="https://substackcdn.com/image/fetch/$s_!iTzQ!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F68c0f614-d9f6-47fa-a323-660dbf940b80_702x93.png 424w, https://substackcdn.com/image/fetch/$s_!iTzQ!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F68c0f614-d9f6-47fa-a323-660dbf940b80_702x93.png 848w, https://substackcdn.com/image/fetch/$s_!iTzQ!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F68c0f614-d9f6-47fa-a323-660dbf940b80_702x93.png 1272w, https://substackcdn.com/image/fetch/$s_!iTzQ!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F68c0f614-d9f6-47fa-a323-660dbf940b80_702x93.png 1456w" sizes="100vw" loading="lazy" class="sizing-normal"/></picture><div></div></div></a></figure></div><p><span>For the time-based SLIs, I appreciate the simplicity and control in Datadog’s UI for choosing the </span><a href="https://blog.alexewerlof.com/p/sli-good">boundaries of good</a><span>:</span></p><div class="captioned-image-container"><figure><a target="_blank" href="https://substackcdn.com/image/fetch/$s_!7pHu!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6e272573-7cd9-4761-b16c-559db2e65681_1426x612.png" data-component-name="Image2ToDOM" class="image-link image2 is-viewable-img can-restack"><div class="image2-inset"><picture><source type="image/webp" srcset="https://substackcdn.com/image/fetch/$s_!7pHu!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6e272573-7cd9-4761-b16c-559db2e65681_1426x612.png 424w, https://substackcdn.com/image/fetch/$s_!7pHu!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6e272573-7cd9-4761-b16c-559db2e65681_1426x612.png 848w, https://substackcdn.com/image/fetch/$s_!7pHu!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6e272573-7cd9-4761-b16c-559db2e65681_1426x612.png 1272w, https://substackcdn.com/image/fetch/$s_!7pHu!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6e272573-7cd9-4761-b16c-559db2e65681_1426x612.png 1456w" sizes="100vw"/><img src="https://substackcdn.com/image/fetch/$s_!7pHu!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6e272573-7cd9-4761-b16c-559db2e65681_1426x612.png" width="1426" height="612" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/6e272573-7cd9-4761-b16c-559db2e65681_1426x612.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:612,&quot;width&quot;:1426,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:100303,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" alt srcset="https://substackcdn.com/image/fetch/$s_!7pHu!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6e272573-7cd9-4761-b16c-559db2e65681_1426x612.png 424w, https://substackcdn.com/image/fetch/$s_!7pHu!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6e272573-7cd9-4761-b16c-559db2e65681_1426x612.png 848w, https://substackcdn.com/image/fetch/$s_!7pHu!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6e272573-7cd9-4761-b16c-559db2e65681_1426x612.png 1272w, https://substackcdn.com/image/fetch/$s_!7pHu!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6e272573-7cd9-4761-b16c-559db2e65681_1426x612.png 1456w" sizes="100vw" loading="lazy" class="sizing-normal"/></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p>There is more control and settings that I can understand, yet the UI is simple enough that I think I can understand if I need to!</p><p><span>I also like their </span><em>Warning Threshold</em><span> which fits nicely with how Alerting/Monitoring is done in the rest of the Datadog platform.</span></p><p><span>Although it can lead to alert fatigue. Done right you wouldn't need warnings because of how </span><a href="https://sre.google/workbook/alerting-on-slos/">Google cleverly uses long window and short window</a><span>. Fortunately warnings is an opt-in feature in Datadog.</span></p><p>Once you create the SLO, you’re presented with a very well thought through dashboard showing Error Budget Burndown, Burn Rate and the color coded status:</p><div class="captioned-image-container"><figure><a target="_blank" href="https://substackcdn.com/image/fetch/$s_!T4xC!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F89b6b26c-dbe4-4ba9-a331-d35a22e2628e_1020x1180.png" data-component-name="Image2ToDOM" class="image-link image2 is-viewable-img can-restack"><div class="image2-inset"><picture><source type="image/webp" srcset="https://substackcdn.com/image/fetch/$s_!T4xC!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F89b6b26c-dbe4-4ba9-a331-d35a22e2628e_1020x1180.png 424w, https://substackcdn.com/image/fetch/$s_!T4xC!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F89b6b26c-dbe4-4ba9-a331-d35a22e2628e_1020x1180.png 848w, https://substackcdn.com/image/fetch/$s_!T4xC!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F89b6b26c-dbe4-4ba9-a331-d35a22e2628e_1020x1180.png 1272w, https://substackcdn.com/image/fetch/$s_!T4xC!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F89b6b26c-dbe4-4ba9-a331-d35a22e2628e_1020x1180.png 1456w" sizes="100vw"/><img src="https://substackcdn.com/image/fetch/$s_!T4xC!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F89b6b26c-dbe4-4ba9-a331-d35a22e2628e_1020x1180.png" width="1020" height="1180" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/89b6b26c-dbe4-4ba9-a331-d35a22e2628e_1020x1180.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:1180,&quot;width&quot;:1020,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:88780,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" alt srcset="https://substackcdn.com/image/fetch/$s_!T4xC!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F89b6b26c-dbe4-4ba9-a331-d35a22e2628e_1020x1180.png 424w, https://substackcdn.com/image/fetch/$s_!T4xC!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F89b6b26c-dbe4-4ba9-a331-d35a22e2628e_1020x1180.png 848w, https://substackcdn.com/image/fetch/$s_!T4xC!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F89b6b26c-dbe4-4ba9-a331-d35a22e2628e_1020x1180.png 1272w, https://substackcdn.com/image/fetch/$s_!T4xC!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F89b6b26c-dbe4-4ba9-a331-d35a22e2628e_1020x1180.png 1456w" sizes="100vw" loading="lazy" class="sizing-normal"/></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p>Overall, Datadog continues to impress me with their UI but their price tag remains a pain point for many teams.</p><p>One important issue to note is that Datadog does not create monitors by default despite me setting a target for the SLO:</p><div class="captioned-image-container"><figure><a target="_blank" href="https://substackcdn.com/image/fetch/$s_!L5ka!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F88e3da45-6e4c-4455-8f24-d47d835b437d_1020x350.png" data-component-name="Image2ToDOM" class="image-link image2 is-viewable-img can-restack"><div class="image2-inset"><picture><source type="image/webp" srcset="https://substackcdn.com/image/fetch/$s_!L5ka!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F88e3da45-6e4c-4455-8f24-d47d835b437d_1020x350.png 424w, https://substackcdn.com/image/fetch/$s_!L5ka!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F88e3da45-6e4c-4455-8f24-d47d835b437d_1020x350.png 848w, https://substackcdn.com/image/fetch/$s_!L5ka!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F88e3da45-6e4c-4455-8f24-d47d835b437d_1020x350.png 1272w, https://substackcdn.com/image/fetch/$s_!L5ka!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F88e3da45-6e4c-4455-8f24-d47d835b437d_1020x350.png 1456w" sizes="100vw"/><img src="https://substackcdn.com/image/fetch/$s_!L5ka!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F88e3da45-6e4c-4455-8f24-d47d835b437d_1020x350.png" width="1020" height="350" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/88e3da45-6e4c-4455-8f24-d47d835b437d_1020x350.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:350,&quot;width&quot;:1020,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:26387,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" alt srcset="https://substackcdn.com/image/fetch/$s_!L5ka!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F88e3da45-6e4c-4455-8f24-d47d835b437d_1020x350.png 424w, https://substackcdn.com/image/fetch/$s_!L5ka!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F88e3da45-6e4c-4455-8f24-d47d835b437d_1020x350.png 848w, https://substackcdn.com/image/fetch/$s_!L5ka!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F88e3da45-6e4c-4455-8f24-d47d835b437d_1020x350.png 1272w, https://substackcdn.com/image/fetch/$s_!L5ka!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F88e3da45-6e4c-4455-8f24-d47d835b437d_1020x350.png 1456w" sizes="100vw" loading="lazy" class="sizing-normal"/></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p>Just like Elastic, Datadog doesn’t create alerts out of the box. Fortunately, creating an alert is just a click away:</p><div class="captioned-image-container"><figure><a target="_blank" href="https://substackcdn.com/image/fetch/$s_!5d9G!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc6906705-d281-40d1-9733-03f078a79e20_226x243.png" data-component-name="Image2ToDOM" class="image-link image2 is-viewable-img can-restack"><div class="image2-inset"><picture><source type="image/webp" srcset="https://substackcdn.com/image/fetch/$s_!5d9G!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc6906705-d281-40d1-9733-03f078a79e20_226x243.png 424w, https://substackcdn.com/image/fetch/$s_!5d9G!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc6906705-d281-40d1-9733-03f078a79e20_226x243.png 848w, https://substackcdn.com/image/fetch/$s_!5d9G!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc6906705-d281-40d1-9733-03f078a79e20_226x243.png 1272w, https://substackcdn.com/image/fetch/$s_!5d9G!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc6906705-d281-40d1-9733-03f078a79e20_226x243.png 1456w" sizes="100vw"/><img src="https://substackcdn.com/image/fetch/$s_!5d9G!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc6906705-d281-40d1-9733-03f078a79e20_226x243.png" width="226" height="243" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/c6906705-d281-40d1-9733-03f078a79e20_226x243.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:243,&quot;width&quot;:226,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:12160,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" alt srcset="https://substackcdn.com/image/fetch/$s_!5d9G!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc6906705-d281-40d1-9733-03f078a79e20_226x243.png 424w, https://substackcdn.com/image/fetch/$s_!5d9G!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc6906705-d281-40d1-9733-03f078a79e20_226x243.png 848w, https://substackcdn.com/image/fetch/$s_!5d9G!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc6906705-d281-40d1-9733-03f078a79e20_226x243.png 1272w, https://substackcdn.com/image/fetch/$s_!5d9G!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc6906705-d281-40d1-9733-03f078a79e20_226x243.png 1456w" sizes="100vw" loading="lazy" class="sizing-normal"/></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p>But it would be better to get the alert as part of setting up the SLO.</p><p>When it comes to setting an alert, you have two choices:</p><ul><li><p>By Error Budget consumption</p></li><li><p>By Burn Rate</p></li></ul><p><span>For the Error Budget burn, I find the default choice of 100% very curious! Here Datadog does not make any effort to make it easier to set a sane default (what happened to </span><a href="https://en.wikipedia.org/wiki/Principle_of_least_astonishment">POLA</a><span>?).</span></p><p><span>I would have gone with any of the defaults </span><a href="https://sre.google/workbook/alerting-on-slos/">suggested by Google</a><span> which is max 10%!</span></p><div class="captioned-image-container"><figure><a target="_blank" href="https://substackcdn.com/image/fetch/$s_!U7P1!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb6be3c16-6bc9-43d6-b7f6-70eb51731c72_621x279.png" data-component-name="Image2ToDOM" class="image-link image2 is-viewable-img can-restack"><div class="image2-inset"><picture><source type="image/webp" srcset="https://substackcdn.com/image/fetch/$s_!U7P1!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb6be3c16-6bc9-43d6-b7f6-70eb51731c72_621x279.png 424w, https://substackcdn.com/image/fetch/$s_!U7P1!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb6be3c16-6bc9-43d6-b7f6-70eb51731c72_621x279.png 848w, https://substackcdn.com/image/fetch/$s_!U7P1!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb6be3c16-6bc9-43d6-b7f6-70eb51731c72_621x279.png 1272w, https://substackcdn.com/image/fetch/$s_!U7P1!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb6be3c16-6bc9-43d6-b7f6-70eb51731c72_621x279.png 1456w" sizes="100vw"/><img src="https://substackcdn.com/image/fetch/$s_!U7P1!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb6be3c16-6bc9-43d6-b7f6-70eb51731c72_621x279.png" width="621" height="279" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/b6be3c16-6bc9-43d6-b7f6-70eb51731c72_621x279.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:279,&quot;width&quot;:621,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:23377,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" alt srcset="https://substackcdn.com/image/fetch/$s_!U7P1!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb6be3c16-6bc9-43d6-b7f6-70eb51731c72_621x279.png 424w, https://substackcdn.com/image/fetch/$s_!U7P1!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb6be3c16-6bc9-43d6-b7f6-70eb51731c72_621x279.png 848w, https://substackcdn.com/image/fetch/$s_!U7P1!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb6be3c16-6bc9-43d6-b7f6-70eb51731c72_621x279.png 1272w, https://substackcdn.com/image/fetch/$s_!U7P1!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb6be3c16-6bc9-43d6-b7f6-70eb51731c72_621x279.png 1456w" sizes="100vw" loading="lazy" class="sizing-normal"/></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p>For the Burn Rate, you need to know what you’re doing. Here, I have configured it according to one of Google’s recommendations:</p><div class="captioned-image-container"><figure><a target="_blank" href="https://substackcdn.com/image/fetch/$s_!aAAM!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F95d7c13c-cc2b-479a-abc9-6d06980e5cd8_621x306.png" data-component-name="Image2ToDOM" class="image-link image2 is-viewable-img can-restack"><div class="image2-inset"><picture><source type="image/webp" srcset="https://substackcdn.com/image/fetch/$s_!aAAM!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F95d7c13c-cc2b-479a-abc9-6d06980e5cd8_621x306.png 424w, https://substackcdn.com/image/fetch/$s_!aAAM!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F95d7c13c-cc2b-479a-abc9-6d06980e5cd8_621x306.png 848w, https://substackcdn.com/image/fetch/$s_!aAAM!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F95d7c13c-cc2b-479a-abc9-6d06980e5cd8_621x306.png 1272w, https://substackcdn.com/image/fetch/$s_!aAAM!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F95d7c13c-cc2b-479a-abc9-6d06980e5cd8_621x306.png 1456w" sizes="100vw"/><img src="https://substackcdn.com/image/fetch/$s_!aAAM!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F95d7c13c-cc2b-479a-abc9-6d06980e5cd8_621x306.png" width="621" height="306" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/95d7c13c-cc2b-479a-abc9-6d06980e5cd8_621x306.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:306,&quot;width&quot;:621,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:26486,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" alt srcset="https://substackcdn.com/image/fetch/$s_!aAAM!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F95d7c13c-cc2b-479a-abc9-6d06980e5cd8_621x306.png 424w, https://substackcdn.com/image/fetch/$s_!aAAM!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F95d7c13c-cc2b-479a-abc9-6d06980e5cd8_621x306.png 848w, https://substackcdn.com/image/fetch/$s_!aAAM!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F95d7c13c-cc2b-479a-abc9-6d06980e5cd8_621x306.png 1272w, https://substackcdn.com/image/fetch/$s_!aAAM!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F95d7c13c-cc2b-479a-abc9-6d06980e5cd8_621x306.png 1456w" sizes="100vw" loading="lazy" class="sizing-normal"/></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p><span>The short window lookback is also hard coded to 1/12th of the long window. This is a sane default and still better than Elastic that hides this information. But I miss the ability to set it to other values. Whoever wrote </span><a href="https://docs.datadoghq.com/service_management/service_level_objectives/burn_rate/">the documentation</a><span> was aware of at least 1 use case for it</span></p><blockquote><p>If you find that your burn rate alert is consistently too flaky, this is an indication that you should make your short window slightly larger.</p></blockquote><p>Nor can I disable short window alerts.</p><p><span>In the </span><a href="https://slc.alexewerlof.com/">Service Level Calculator</a><span>, you can see all 3 suggestions:</span></p><div class="captioned-image-container"><figure><a target="_blank" href="https://substackcdn.com/image/fetch/$s_!SwKt!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fcd3e9fe6-a5e0-4d47-8950-80ce2c39e6f3_509x227.png" data-component-name="Image2ToDOM" class="image-link image2 can-restack"><div class="image2-inset"><picture><source type="image/webp" srcset="https://substackcdn.com/image/fetch/$s_!SwKt!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fcd3e9fe6-a5e0-4d47-8950-80ce2c39e6f3_509x227.png 424w, https://substackcdn.com/image/fetch/$s_!SwKt!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fcd3e9fe6-a5e0-4d47-8950-80ce2c39e6f3_509x227.png 848w, https://substackcdn.com/image/fetch/$s_!SwKt!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fcd3e9fe6-a5e0-4d47-8950-80ce2c39e6f3_509x227.png 1272w, https://substackcdn.com/image/fetch/$s_!SwKt!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fcd3e9fe6-a5e0-4d47-8950-80ce2c39e6f3_509x227.png 1456w" sizes="100vw"/><img src="https://substackcdn.com/image/fetch/$s_!SwKt!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fcd3e9fe6-a5e0-4d47-8950-80ce2c39e6f3_509x227.png" width="509" height="227" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/cd3e9fe6-a5e0-4d47-8950-80ce2c39e6f3_509x227.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:227,&quot;width&quot;:509,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:53014,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" alt srcset="https://substackcdn.com/image/fetch/$s_!SwKt!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fcd3e9fe6-a5e0-4d47-8950-80ce2c39e6f3_509x227.png 424w, https://substackcdn.com/image/fetch/$s_!SwKt!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fcd3e9fe6-a5e0-4d47-8950-80ce2c39e6f3_509x227.png 848w, https://substackcdn.com/image/fetch/$s_!SwKt!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fcd3e9fe6-a5e0-4d47-8950-80ce2c39e6f3_509x227.png 1272w, https://substackcdn.com/image/fetch/$s_!SwKt!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fcd3e9fe6-a5e0-4d47-8950-80ce2c39e6f3_509x227.png 1456w" sizes="100vw" loading="lazy" class="sizing-normal"/></picture><div></div></div></a></figure></div><p>Note that the 1h/5m recommendation is for a 30 day SLO window.</p><p>For a 7-day window, if you go with 2% consumption at 14.4x, you’ll end up with 14 minutes for long window lookback and ~1 minute for short window lookback. Technicalities, I know, but it feels that Datadog’s SLO feature is just put together in a sloppy manner to tick a feature box. I have higher expectation at Datadog’s price point especially because the rest of their platform has a great UX.</p><p><span>Again, what they miss in their UI, they cover with </span><a href="https://docs.datadoghq.com/service_management/service_level_objectives/burn_rate/">documentation</a><span>:</span></p><div class="captioned-image-container"><figure><a target="_blank" href="https://substackcdn.com/image/fetch/$s_!0V-a!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F24319c97-d5d2-4732-89eb-5994a931159d_722x709.png" data-component-name="Image2ToDOM" class="image-link image2 is-viewable-img can-restack"><div class="image2-inset"><picture><source type="image/webp" srcset="https://substackcdn.com/image/fetch/$s_!0V-a!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F24319c97-d5d2-4732-89eb-5994a931159d_722x709.png 424w, https://substackcdn.com/image/fetch/$s_!0V-a!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F24319c97-d5d2-4732-89eb-5994a931159d_722x709.png 848w, https://substackcdn.com/image/fetch/$s_!0V-a!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F24319c97-d5d2-4732-89eb-5994a931159d_722x709.png 1272w, https://substackcdn.com/image/fetch/$s_!0V-a!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F24319c97-d5d2-4732-89eb-5994a931159d_722x709.png 1456w" sizes="100vw"/><img src="https://substackcdn.com/image/fetch/$s_!0V-a!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F24319c97-d5d2-4732-89eb-5994a931159d_722x709.png" width="722" height="709" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/24319c97-d5d2-4732-89eb-5994a931159d_722x709.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:709,&quot;width&quot;:722,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:55960,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" alt srcset="https://substackcdn.com/image/fetch/$s_!0V-a!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F24319c97-d5d2-4732-89eb-5994a931159d_722x709.png 424w, https://substackcdn.com/image/fetch/$s_!0V-a!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F24319c97-d5d2-4732-89eb-5994a931159d_722x709.png 848w, https://substackcdn.com/image/fetch/$s_!0V-a!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F24319c97-d5d2-4732-89eb-5994a931159d_722x709.png 1272w, https://substackcdn.com/image/fetch/$s_!0V-a!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F24319c97-d5d2-4732-89eb-5994a931159d_722x709.png 1456w" sizes="100vw" loading="lazy" class="sizing-normal"/></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p>The documentation has terms like “good behavior” instead of “good events” or “good timeslices”.</p><p>I also found the term “theoretical error budget” confusing, but the document does not disappoint with wise sentences like this:</p><blockquote><p><span>theoretical error budget consumption and actual error budget consumption are equal </span><em>because time always moves at a constant rate</em></p></blockquote><p>You don’t say! 😂</p><p><span>Fine! What’s wrong with just plain “error budget”? You certainly </span><a href="https://www.google.com/search?q=site%3Asre.google+%22theoretical+error+budget%22">don’t find a reference</a><span> to “theoretical error budget” in Google’s books. Service Levels are already hard enough. Why make the learning curve even steeper by making up new words? (Uhm, said the guy who invented </span><a href="https://blog.alexewerlof.com/p/sls">SLS</a><span> and </span><a href="https://blog.alexewerlof.com/p/10x9">10x/9</a><span>!) 🫠</span></p><p><span>To my knowledge Datadog doesn’t support </span><a href="https://openslo.com/">OpenSLO</a><span> but they </span><a href="https://docs.datadoghq.com/service_management/service_level_objectives/burn_rate/#api-and-terraform">support Terraform</a><span>.</span></p><h1 class="header-anchor-post">Grafana<div class="pencraft pc-display-flex pc-alignItems-center pc-position-absolute pc-reset header-anchor-parent"><div class="pencraft pc-display-contents pc-reset pubTheme-yiXxQA"><div id="§grafana" class="pencraft pc-reset header-anchor offset-top"></div><button tabindex="0" type="button" aria-label="Link" data-href="https://blog.alexewerlof.com/i/148723414/grafana" class="pencraft pc-reset pencraft iconButton-mq_Et5 iconButtonBase-dJGHgN buttonBase-GK1x3M buttonStyle-r7yGCK size_sm-G3LciD priority_secondary-S63h9o"><svg xmlns="http://www.w3.org/2000/svg" width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-link"><path d="M10 13a5 5 0 0 0 7.54.54l3-3a5 5 0 0 0-7.07-7.07l-1.72 1.71"></path><path d="M14 11a5 5 0 0 0-7.54-.54l-3 3a5 5 0 0 0 7.07 7.07l1.71-1.71"></path></svg></button></div></div></h1><p><span>Grafana refers to Service Levels as SLO and carefully hides them under </span><strong>Alerts &amp; IRM</strong><span>. IRM stands for Incident Response Management, if you’re wondering about that obvious acronym! Dammit UI designers! 😂</span></p><div class="captioned-image-container"><figure><a target="_blank" href="https://substackcdn.com/image/fetch/$s_!69pU!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fe39e4b0c-97f1-4bfa-a678-fe5d99599a7d_294x467.png" data-component-name="Image2ToDOM" class="image-link image2 is-viewable-img can-restack"><div class="image2-inset"><picture><source type="image/webp" srcset="https://substackcdn.com/image/fetch/$s_!69pU!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fe39e4b0c-97f1-4bfa-a678-fe5d99599a7d_294x467.png 424w, https://substackcdn.com/image/fetch/$s_!69pU!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fe39e4b0c-97f1-4bfa-a678-fe5d99599a7d_294x467.png 848w, https://substackcdn.com/image/fetch/$s_!69pU!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fe39e4b0c-97f1-4bfa-a678-fe5d99599a7d_294x467.png 1272w, https://substackcdn.com/image/fetch/$s_!69pU!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fe39e4b0c-97f1-4bfa-a678-fe5d99599a7d_294x467.png 1456w" sizes="100vw"/><img src="https://substackcdn.com/image/fetch/$s_!69pU!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fe39e4b0c-97f1-4bfa-a678-fe5d99599a7d_294x467.png" width="294" height="467" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/e39e4b0c-97f1-4bfa-a678-fe5d99599a7d_294x467.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:467,&quot;width&quot;:294,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:25347,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" alt srcset="https://substackcdn.com/image/fetch/$s_!69pU!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fe39e4b0c-97f1-4bfa-a678-fe5d99599a7d_294x467.png 424w, https://substackcdn.com/image/fetch/$s_!69pU!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fe39e4b0c-97f1-4bfa-a678-fe5d99599a7d_294x467.png 848w, https://substackcdn.com/image/fetch/$s_!69pU!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fe39e4b0c-97f1-4bfa-a678-fe5d99599a7d_294x467.png 1272w, https://substackcdn.com/image/fetch/$s_!69pU!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fe39e4b0c-97f1-4bfa-a678-fe5d99599a7d_294x467.png 1456w" sizes="100vw" loading="lazy" class="sizing-normal"/></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p>This is already a nice touch because Service Levels need to be tied to some responsibility and alerting is the absolute basic mechanism to do that.</p><p>In fact, alerting is such a prominent feature of Grafana Service Level implementation that it has a dedicated filter in the SLO management:</p><div class="captioned-image-container"><figure><a target="_blank" href="https://substackcdn.com/image/fetch/$s_!2ZWw!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa22aee4b-c121-4b4f-932a-51b224780e68_1279x313.png" data-component-name="Image2ToDOM" class="image-link image2 can-restack"><div class="image2-inset"><picture><source type="image/webp" srcset="https://substackcdn.com/image/fetch/$s_!2ZWw!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa22aee4b-c121-4b4f-932a-51b224780e68_1279x313.png 424w, https://substackcdn.com/image/fetch/$s_!2ZWw!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa22aee4b-c121-4b4f-932a-51b224780e68_1279x313.png 848w, https://substackcdn.com/image/fetch/$s_!2ZWw!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa22aee4b-c121-4b4f-932a-51b224780e68_1279x313.png 1272w, https://substackcdn.com/image/fetch/$s_!2ZWw!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa22aee4b-c121-4b4f-932a-51b224780e68_1279x313.png 1456w" sizes="100vw"/><img src="https://substackcdn.com/image/fetch/$s_!2ZWw!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa22aee4b-c121-4b4f-932a-51b224780e68_1279x313.png" width="1279" height="313" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/a22aee4b-c121-4b4f-932a-51b224780e68_1279x313.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:313,&quot;width&quot;:1279,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:34927,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" alt srcset="https://substackcdn.com/image/fetch/$s_!2ZWw!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa22aee4b-c121-4b4f-932a-51b224780e68_1279x313.png 424w, https://substackcdn.com/image/fetch/$s_!2ZWw!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa22aee4b-c121-4b4f-932a-51b224780e68_1279x313.png 848w, https://substackcdn.com/image/fetch/$s_!2ZWw!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa22aee4b-c121-4b4f-932a-51b224780e68_1279x313.png 1272w, https://substackcdn.com/image/fetch/$s_!2ZWw!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa22aee4b-c121-4b4f-932a-51b224780e68_1279x313.png 1456w" sizes="100vw" loading="lazy" class="sizing-normal"/></picture><div></div></div></a></figure></div><p>Alerts are also a key attribute of the SLO. A dedicated button takes you directly to alerting configuration:</p><div class="captioned-image-container"><figure><a target="_blank" href="https://substackcdn.com/image/fetch/$s_!0A-t!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff1af889e-b058-4e56-b079-67d459afa12f_128x116.png" data-component-name="Image2ToDOM" class="image-link image2 can-restack"><div class="image2-inset"><picture><source type="image/webp" srcset="https://substackcdn.com/image/fetch/$s_!0A-t!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff1af889e-b058-4e56-b079-67d459afa12f_128x116.png 424w, https://substackcdn.com/image/fetch/$s_!0A-t!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff1af889e-b058-4e56-b079-67d459afa12f_128x116.png 848w, https://substackcdn.com/image/fetch/$s_!0A-t!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff1af889e-b058-4e56-b079-67d459afa12f_128x116.png 1272w, https://substackcdn.com/image/fetch/$s_!0A-t!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff1af889e-b058-4e56-b079-67d459afa12f_128x116.png 1456w" sizes="100vw"/><img src="https://substackcdn.com/image/fetch/$s_!0A-t!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff1af889e-b058-4e56-b079-67d459afa12f_128x116.png" width="128" height="116" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/f1af889e-b058-4e56-b079-67d459afa12f_128x116.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:116,&quot;width&quot;:128,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:3951,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" alt srcset="https://substackcdn.com/image/fetch/$s_!0A-t!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff1af889e-b058-4e56-b079-67d459afa12f_128x116.png 424w, https://substackcdn.com/image/fetch/$s_!0A-t!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff1af889e-b058-4e56-b079-67d459afa12f_128x116.png 848w, https://substackcdn.com/image/fetch/$s_!0A-t!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff1af889e-b058-4e56-b079-67d459afa12f_128x116.png 1272w, https://substackcdn.com/image/fetch/$s_!0A-t!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff1af889e-b058-4e56-b079-67d459afa12f_128x116.png 1456w" sizes="100vw" loading="lazy" class="sizing-normal"/></picture><div></div></div></a></figure></div><p>Love it! 💖</p><p>The process of creating an SLO is straightforward using a wizard UI:</p><div class="captioned-image-container"><figure><a target="_blank" href="https://substackcdn.com/image/fetch/$s_!yzky!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F84aa6c6a-57d1-423c-b94e-7a5da9bb53f4_1144x771.png" data-component-name="Image2ToDOM" class="image-link image2 is-viewable-img can-restack"><div class="image2-inset"><picture><source type="image/webp" srcset="https://substackcdn.com/image/fetch/$s_!yzky!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F84aa6c6a-57d1-423c-b94e-7a5da9bb53f4_1144x771.png 424w, https://substackcdn.com/image/fetch/$s_!yzky!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F84aa6c6a-57d1-423c-b94e-7a5da9bb53f4_1144x771.png 848w, https://substackcdn.com/image/fetch/$s_!yzky!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F84aa6c6a-57d1-423c-b94e-7a5da9bb53f4_1144x771.png 1272w, https://substackcdn.com/image/fetch/$s_!yzky!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F84aa6c6a-57d1-423c-b94e-7a5da9bb53f4_1144x771.png 1456w" sizes="100vw"/><img src="https://substackcdn.com/image/fetch/$s_!yzky!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F84aa6c6a-57d1-423c-b94e-7a5da9bb53f4_1144x771.png" width="1144" height="771" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/84aa6c6a-57d1-423c-b94e-7a5da9bb53f4_1144x771.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:771,&quot;width&quot;:1144,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:89631,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" alt srcset="https://substackcdn.com/image/fetch/$s_!yzky!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F84aa6c6a-57d1-423c-b94e-7a5da9bb53f4_1144x771.png 424w, https://substackcdn.com/image/fetch/$s_!yzky!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F84aa6c6a-57d1-423c-b94e-7a5da9bb53f4_1144x771.png 848w, https://substackcdn.com/image/fetch/$s_!yzky!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F84aa6c6a-57d1-423c-b94e-7a5da9bb53f4_1144x771.png 1272w, https://substackcdn.com/image/fetch/$s_!yzky!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F84aa6c6a-57d1-423c-b94e-7a5da9bb53f4_1144x771.png 1456w" sizes="100vw" loading="lazy" class="sizing-normal"/></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p><span>You see? 5 steps! Not 3! And certainly no circles. Grafana is original! Or at least their UI designers know how to </span><a href="https://grafana.com/blog/2023/05/12/inside-grafana-labs-remote-first-is-relationship-first/">work from home</a><span>.</span></p><p><span>You can enter any </span><a href="https://blog.alexewerlof.com/p/compliance-period">compliance periods</a><span> as long as it’s in days… Or nights… You get the idea! 28 days is common for weekly seasonality (when the metric trend follows a weekly pattern) but 30 days is the most common:</span></p><div class="captioned-image-container"><figure><a target="_blank" href="https://substackcdn.com/image/fetch/$s_!BXlp!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F0d87b80a-672c-47f9-9882-e4a47a0f9fff_280x95.png" data-component-name="Image2ToDOM" class="image-link image2 can-restack"><div class="image2-inset"><picture><source type="image/webp" srcset="https://substackcdn.com/image/fetch/$s_!BXlp!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F0d87b80a-672c-47f9-9882-e4a47a0f9fff_280x95.png 424w, https://substackcdn.com/image/fetch/$s_!BXlp!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F0d87b80a-672c-47f9-9882-e4a47a0f9fff_280x95.png 848w, https://substackcdn.com/image/fetch/$s_!BXlp!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F0d87b80a-672c-47f9-9882-e4a47a0f9fff_280x95.png 1272w, https://substackcdn.com/image/fetch/$s_!BXlp!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F0d87b80a-672c-47f9-9882-e4a47a0f9fff_280x95.png 1456w" sizes="100vw"/><img src="https://substackcdn.com/image/fetch/$s_!BXlp!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F0d87b80a-672c-47f9-9882-e4a47a0f9fff_280x95.png" width="280" height="95" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/0d87b80a-672c-47f9-9882-e4a47a0f9fff_280x95.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:95,&quot;width&quot;:280,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:6823,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" alt srcset="https://substackcdn.com/image/fetch/$s_!BXlp!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F0d87b80a-672c-47f9-9882-e4a47a0f9fff_280x95.png 424w, https://substackcdn.com/image/fetch/$s_!BXlp!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F0d87b80a-672c-47f9-9882-e4a47a0f9fff_280x95.png 848w, https://substackcdn.com/image/fetch/$s_!BXlp!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F0d87b80a-672c-47f9-9882-e4a47a0f9fff_280x95.png 1272w, https://substackcdn.com/image/fetch/$s_!BXlp!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F0d87b80a-672c-47f9-9882-e4a47a0f9fff_280x95.png 1456w" sizes="100vw" loading="lazy" class="sizing-normal"/></picture><div></div></div></a></figure></div><p><span>Grafana doesn’t seem to support </span><a href="https://blog.alexewerlof.com/p/compliance-period">calendar-bound compliance periods</a><span> (e.g. budgeting per calendar month) as far as I can tell..</span></p><p><span>SLI can be either </span><a href="https://blog.alexewerlof.com/p/sli">time-based (e.g. uptime) or event-based</a><span>. Grafana’s default UI doesn’t bring up that aspect which is a miss. Typically, time-based SLIs are easier to start with and I’d expect to see that choice in the first step of the wizard as a prominent option.</span></p><p><span>As we </span><a href="https://blog.alexewerlof.com/p/sli">discussed before</a><span>, the formula for SLI is success divided by valid events or timeslots.</span></p><p><span>There’s a distinction between </span><em><a href="https://blog.alexewerlof.com/p/valid-vs-total">valid</a></em><a href="https://blog.alexewerlof.com/p/valid-vs-total"> and </a><em><a href="https://blog.alexewerlof.com/p/valid-vs-total">total</a></em><span> which is often underutilized. Grafana chose the simpler term:</span></p><div class="captioned-image-container"><figure><a target="_blank" href="https://substackcdn.com/image/fetch/$s_!oCSP!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff4b19930-d7d1-4083-abcd-38196ef08e4a_828x182.png" data-component-name="Image2ToDOM" class="image-link image2 can-restack"><div class="image2-inset"><picture><source type="image/webp" srcset="https://substackcdn.com/image/fetch/$s_!oCSP!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff4b19930-d7d1-4083-abcd-38196ef08e4a_828x182.png 424w, https://substackcdn.com/image/fetch/$s_!oCSP!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff4b19930-d7d1-4083-abcd-38196ef08e4a_828x182.png 848w, https://substackcdn.com/image/fetch/$s_!oCSP!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff4b19930-d7d1-4083-abcd-38196ef08e4a_828x182.png 1272w, https://substackcdn.com/image/fetch/$s_!oCSP!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff4b19930-d7d1-4083-abcd-38196ef08e4a_828x182.png 1456w" sizes="100vw"/><img src="https://substackcdn.com/image/fetch/$s_!oCSP!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff4b19930-d7d1-4083-abcd-38196ef08e4a_828x182.png" width="828" height="182" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/f4b19930-d7d1-4083-abcd-38196ef08e4a_828x182.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:182,&quot;width&quot;:828,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:15826,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" alt srcset="https://substackcdn.com/image/fetch/$s_!oCSP!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff4b19930-d7d1-4083-abcd-38196ef08e4a_828x182.png 424w, https://substackcdn.com/image/fetch/$s_!oCSP!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff4b19930-d7d1-4083-abcd-38196ef08e4a_828x182.png 848w, https://substackcdn.com/image/fetch/$s_!oCSP!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff4b19930-d7d1-4083-abcd-38196ef08e4a_828x182.png 1272w, https://substackcdn.com/image/fetch/$s_!oCSP!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff4b19930-d7d1-4083-abcd-38196ef08e4a_828x182.png 1456w" sizes="100vw" loading="lazy" class="sizing-normal"/></picture><div></div></div></a></figure></div><p><span>Just like the other two, Grafana only supports </span><a href="https://blog.alexewerlof.com/p/sli-heterogeneous-vs-homogeneous">heterogeneous SLIs</a><span>. </span></p><p><span>I suppose homogeneous SLIs are possible in the </span><em>Advanced</em><span> view, but my evaluation instance didn’t have enough data to try this aspect:</span></p><div class="captioned-image-container"><figure><a target="_blank" href="https://substackcdn.com/image/fetch/$s_!byI3!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fac151ca8-ef8b-46de-9340-30ef8302fd71_815x570.png" data-component-name="Image2ToDOM" class="image-link image2 is-viewable-img can-restack"><div class="image2-inset"><picture><source type="image/webp" srcset="https://substackcdn.com/image/fetch/$s_!byI3!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fac151ca8-ef8b-46de-9340-30ef8302fd71_815x570.png 424w, https://substackcdn.com/image/fetch/$s_!byI3!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fac151ca8-ef8b-46de-9340-30ef8302fd71_815x570.png 848w, https://substackcdn.com/image/fetch/$s_!byI3!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fac151ca8-ef8b-46de-9340-30ef8302fd71_815x570.png 1272w, https://substackcdn.com/image/fetch/$s_!byI3!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fac151ca8-ef8b-46de-9340-30ef8302fd71_815x570.png 1456w" sizes="100vw"/><img src="https://substackcdn.com/image/fetch/$s_!byI3!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fac151ca8-ef8b-46de-9340-30ef8302fd71_815x570.png" width="815" height="570" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/ac151ca8-ef8b-46de-9340-30ef8302fd71_815x570.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:570,&quot;width&quot;:815,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:70208,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" alt srcset="https://substackcdn.com/image/fetch/$s_!byI3!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fac151ca8-ef8b-46de-9340-30ef8302fd71_815x570.png 424w, https://substackcdn.com/image/fetch/$s_!byI3!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fac151ca8-ef8b-46de-9340-30ef8302fd71_815x570.png 848w, https://substackcdn.com/image/fetch/$s_!byI3!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fac151ca8-ef8b-46de-9340-30ef8302fd71_815x570.png 1272w, https://substackcdn.com/image/fetch/$s_!byI3!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fac151ca8-ef8b-46de-9340-30ef8302fd71_815x570.png 1456w" sizes="100vw" loading="lazy" class="sizing-normal"/></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p>Setting SLO and Error Budget in one step is another nice touch in Grafana because these two values are tightly coupled:</p><div class="captioned-image-container"><figure><a target="_blank" href="https://substackcdn.com/image/fetch/$s_!0aOO!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F695b4fc5-289b-4bb6-bd99-0c84b1015e71_853x352.png" data-component-name="Image2ToDOM" class="image-link image2 is-viewable-img can-restack"><div class="image2-inset"><picture><source type="image/webp" srcset="https://substackcdn.com/image/fetch/$s_!0aOO!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F695b4fc5-289b-4bb6-bd99-0c84b1015e71_853x352.png 424w, https://substackcdn.com/image/fetch/$s_!0aOO!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F695b4fc5-289b-4bb6-bd99-0c84b1015e71_853x352.png 848w, https://substackcdn.com/image/fetch/$s_!0aOO!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F695b4fc5-289b-4bb6-bd99-0c84b1015e71_853x352.png 1272w, https://substackcdn.com/image/fetch/$s_!0aOO!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F695b4fc5-289b-4bb6-bd99-0c84b1015e71_853x352.png 1456w" sizes="100vw"/><img src="https://substackcdn.com/image/fetch/$s_!0aOO!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F695b4fc5-289b-4bb6-bd99-0c84b1015e71_853x352.png" width="853" height="352" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/695b4fc5-289b-4bb6-bd99-0c84b1015e71_853x352.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:352,&quot;width&quot;:853,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:41304,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" alt srcset="https://substackcdn.com/image/fetch/$s_!0aOO!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F695b4fc5-289b-4bb6-bd99-0c84b1015e71_853x352.png 424w, https://substackcdn.com/image/fetch/$s_!0aOO!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F695b4fc5-289b-4bb6-bd99-0c84b1015e71_853x352.png 848w, https://substackcdn.com/image/fetch/$s_!0aOO!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F695b4fc5-289b-4bb6-bd99-0c84b1015e71_853x352.png 1272w, https://substackcdn.com/image/fetch/$s_!0aOO!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F695b4fc5-289b-4bb6-bd99-0c84b1015e71_853x352.png 1456w" sizes="100vw" loading="lazy" class="sizing-normal"/></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p><span>However, I would have preferred a percentage slider as implemented in </span><a href="https://slc.alexewerlof.com/">SLC</a><span> because unlike other settings, this one can only be between 0-100 (typically above 90%).</span></p><div class="captioned-image-container"><figure><a target="_blank" href="https://substackcdn.com/image/fetch/$s_!Wiob!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F80edfbe8-d0c6-4971-9d71-cb3b652ed296_570x261.png" data-component-name="Image2ToDOM" class="image-link image2 is-viewable-img can-restack"><div class="image2-inset"><picture><source type="image/webp" srcset="https://substackcdn.com/image/fetch/$s_!Wiob!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F80edfbe8-d0c6-4971-9d71-cb3b652ed296_570x261.png 424w, https://substackcdn.com/image/fetch/$s_!Wiob!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F80edfbe8-d0c6-4971-9d71-cb3b652ed296_570x261.png 848w, https://substackcdn.com/image/fetch/$s_!Wiob!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F80edfbe8-d0c6-4971-9d71-cb3b652ed296_570x261.png 1272w, https://substackcdn.com/image/fetch/$s_!Wiob!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F80edfbe8-d0c6-4971-9d71-cb3b652ed296_570x261.png 1456w" sizes="100vw"/><img src="https://substackcdn.com/image/fetch/$s_!Wiob!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F80edfbe8-d0c6-4971-9d71-cb3b652ed296_570x261.png" width="570" height="261" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/80edfbe8-d0c6-4971-9d71-cb3b652ed296_570x261.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:261,&quot;width&quot;:570,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:10490,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" alt srcset="https://substackcdn.com/image/fetch/$s_!Wiob!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F80edfbe8-d0c6-4971-9d71-cb3b652ed296_570x261.png 424w, https://substackcdn.com/image/fetch/$s_!Wiob!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F80edfbe8-d0c6-4971-9d71-cb3b652ed296_570x261.png 848w, https://substackcdn.com/image/fetch/$s_!Wiob!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F80edfbe8-d0c6-4971-9d71-cb3b652ed296_570x261.png 1272w, https://substackcdn.com/image/fetch/$s_!Wiob!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F80edfbe8-d0c6-4971-9d71-cb3b652ed296_570x261.png 1456w" sizes="100vw" loading="lazy" class="sizing-normal"/></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p><span>This is absolutely not a deal-breaker, but what </span><em>is</em><span> a deal-breaker is the fact that you can set the SLO to 100% and it doesn’t even complain! 😱</span></p><div class="captioned-image-container"><figure><a target="_blank" href="https://substackcdn.com/image/fetch/$s_!kcik!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F55720e16-ee7f-4600-aad8-da921e956f20_838x216.png" data-component-name="Image2ToDOM" class="image-link image2 can-restack"><div class="image2-inset"><picture><source type="image/webp" srcset="https://substackcdn.com/image/fetch/$s_!kcik!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F55720e16-ee7f-4600-aad8-da921e956f20_838x216.png 424w, https://substackcdn.com/image/fetch/$s_!kcik!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F55720e16-ee7f-4600-aad8-da921e956f20_838x216.png 848w, https://substackcdn.com/image/fetch/$s_!kcik!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F55720e16-ee7f-4600-aad8-da921e956f20_838x216.png 1272w, https://substackcdn.com/image/fetch/$s_!kcik!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F55720e16-ee7f-4600-aad8-da921e956f20_838x216.png 1456w" sizes="100vw"/><img src="https://substackcdn.com/image/fetch/$s_!kcik!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F55720e16-ee7f-4600-aad8-da921e956f20_838x216.png" width="838" height="216" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/55720e16-ee7f-4600-aad8-da921e956f20_838x216.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:216,&quot;width&quot;:838,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:33448,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" alt srcset="https://substackcdn.com/image/fetch/$s_!kcik!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F55720e16-ee7f-4600-aad8-da921e956f20_838x216.png 424w, https://substackcdn.com/image/fetch/$s_!kcik!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F55720e16-ee7f-4600-aad8-da921e956f20_838x216.png 848w, https://substackcdn.com/image/fetch/$s_!kcik!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F55720e16-ee7f-4600-aad8-da921e956f20_838x216.png 1272w, https://substackcdn.com/image/fetch/$s_!kcik!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F55720e16-ee7f-4600-aad8-da921e956f20_838x216.png 1456w" sizes="100vw" loading="lazy" class="sizing-normal"/></picture><div></div></div></a></figure></div><p>However, setting it to 110% seems to kick in the validation mechanism:</p><div class="captioned-image-container"><figure><a target="_blank" href="https://substackcdn.com/image/fetch/$s_!yN8x!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F18f04d6a-e7db-4f67-869f-7be19880922d_838x256.png" data-component-name="Image2ToDOM" class="image-link image2 is-viewable-img can-restack"><div class="image2-inset"><picture><source type="image/webp" srcset="https://substackcdn.com/image/fetch/$s_!yN8x!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F18f04d6a-e7db-4f67-869f-7be19880922d_838x256.png 424w, https://substackcdn.com/image/fetch/$s_!yN8x!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F18f04d6a-e7db-4f67-869f-7be19880922d_838x256.png 848w, https://substackcdn.com/image/fetch/$s_!yN8x!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F18f04d6a-e7db-4f67-869f-7be19880922d_838x256.png 1272w, https://substackcdn.com/image/fetch/$s_!yN8x!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F18f04d6a-e7db-4f67-869f-7be19880922d_838x256.png 1456w" sizes="100vw"/><img src="https://substackcdn.com/image/fetch/$s_!yN8x!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F18f04d6a-e7db-4f67-869f-7be19880922d_838x256.png" width="838" height="256" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/18f04d6a-e7db-4f67-869f-7be19880922d_838x256.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:256,&quot;width&quot;:838,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:37512,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" alt srcset="https://substackcdn.com/image/fetch/$s_!yN8x!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F18f04d6a-e7db-4f67-869f-7be19880922d_838x256.png 424w, https://substackcdn.com/image/fetch/$s_!yN8x!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F18f04d6a-e7db-4f67-869f-7be19880922d_838x256.png 848w, https://substackcdn.com/image/fetch/$s_!yN8x!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F18f04d6a-e7db-4f67-869f-7be19880922d_838x256.png 1272w, https://substackcdn.com/image/fetch/$s_!yN8x!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F18f04d6a-e7db-4f67-869f-7be19880922d_838x256.png 1456w" sizes="100vw" loading="lazy" class="sizing-normal"/></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p>Although they still show an error budget of -10%? Is that a budget or giveaway? 🤑</p><p><span>Personally, I’d prefer the UI to scream if the value is too close to 100%. For example, SLC shows an error with a link to </span><a href="https://blog.alexewerlof.com/p/10x9">the rule of 10x/9</a><span>:</span></p><div class="captioned-image-container"><figure><a target="_blank" href="https://substackcdn.com/image/fetch/$s_!QcvL!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F2bc75a0f-c723-4340-9a3b-8123657d9a71_570x372.png" data-component-name="Image2ToDOM" class="image-link image2 is-viewable-img can-restack"><div class="image2-inset"><picture><source type="image/webp" srcset="https://substackcdn.com/image/fetch/$s_!QcvL!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F2bc75a0f-c723-4340-9a3b-8123657d9a71_570x372.png 424w, https://substackcdn.com/image/fetch/$s_!QcvL!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F2bc75a0f-c723-4340-9a3b-8123657d9a71_570x372.png 848w, https://substackcdn.com/image/fetch/$s_!QcvL!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F2bc75a0f-c723-4340-9a3b-8123657d9a71_570x372.png 1272w, https://substackcdn.com/image/fetch/$s_!QcvL!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F2bc75a0f-c723-4340-9a3b-8123657d9a71_570x372.png 1456w" sizes="100vw"/><img src="https://substackcdn.com/image/fetch/$s_!QcvL!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F2bc75a0f-c723-4340-9a3b-8123657d9a71_570x372.png" width="570" height="372" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/2bc75a0f-c723-4340-9a3b-8123657d9a71_570x372.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:372,&quot;width&quot;:570,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:30641,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" alt srcset="https://substackcdn.com/image/fetch/$s_!QcvL!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F2bc75a0f-c723-4340-9a3b-8123657d9a71_570x372.png 424w, https://substackcdn.com/image/fetch/$s_!QcvL!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F2bc75a0f-c723-4340-9a3b-8123657d9a71_570x372.png 848w, https://substackcdn.com/image/fetch/$s_!QcvL!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F2bc75a0f-c723-4340-9a3b-8123657d9a71_570x372.png 1272w, https://substackcdn.com/image/fetch/$s_!QcvL!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F2bc75a0f-c723-4340-9a3b-8123657d9a71_570x372.png 1456w" sizes="100vw" loading="lazy" class="sizing-normal"/></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p><span>Picking an unrealistic value like 100% can negatively impact the alerting experience or deployment frequency (100% is totally fine for </span><a href="https://blog.alexewerlof.com/p/sls">SLS</a><span> but not </span><a href="https://blog.alexewerlof.com/p/slo">SLO</a><span>).</span></p><p><span>That’s one reason that SLC exists: to set </span><em>reasonable</em><span> expectations.</span></p><p>Moving on. Another aspect of Grafana’s Service Level implementation that I absolutely love is their categorization mechanism:</p><ul><li><p>You can put the SLO in a folder</p></li><li><p>It to a team name</p></li><li><p>And define custom labels for it (both Datadog and Elastic have this feature)</p></li></ul><div class="captioned-image-container"><figure><a target="_blank" href="https://substackcdn.com/image/fetch/$s_!wxgv!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F061be76e-6b70-4177-9fd3-480f09749aa0_851x709.png" data-component-name="Image2ToDOM" class="image-link image2 is-viewable-img can-restack"><div class="image2-inset"><picture><source type="image/webp" srcset="https://substackcdn.com/image/fetch/$s_!wxgv!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F061be76e-6b70-4177-9fd3-480f09749aa0_851x709.png 424w, https://substackcdn.com/image/fetch/$s_!wxgv!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F061be76e-6b70-4177-9fd3-480f09749aa0_851x709.png 848w, https://substackcdn.com/image/fetch/$s_!wxgv!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F061be76e-6b70-4177-9fd3-480f09749aa0_851x709.png 1272w, https://substackcdn.com/image/fetch/$s_!wxgv!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F061be76e-6b70-4177-9fd3-480f09749aa0_851x709.png 1456w" sizes="100vw"/><img src="https://substackcdn.com/image/fetch/$s_!wxgv!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F061be76e-6b70-4177-9fd3-480f09749aa0_851x709.png" width="851" height="709" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/061be76e-6b70-4177-9fd3-480f09749aa0_851x709.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:709,&quot;width&quot;:851,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:78684,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" alt srcset="https://substackcdn.com/image/fetch/$s_!wxgv!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F061be76e-6b70-4177-9fd3-480f09749aa0_851x709.png 424w, https://substackcdn.com/image/fetch/$s_!wxgv!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F061be76e-6b70-4177-9fd3-480f09749aa0_851x709.png 848w, https://substackcdn.com/image/fetch/$s_!wxgv!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F061be76e-6b70-4177-9fd3-480f09749aa0_851x709.png 1272w, https://substackcdn.com/image/fetch/$s_!wxgv!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F061be76e-6b70-4177-9fd3-480f09749aa0_851x709.png 1456w" sizes="100vw" loading="lazy" class="sizing-normal"/></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p>These features make it easier to manage SLOs across a large organization, which is exactly the type of challenge I am dealing with. Kudos for that.</p><p>The 4th step of defining a SLO in Grafana is Alerting.</p><div class="captioned-image-container"><figure><a target="_blank" href="https://substackcdn.com/image/fetch/$s_!zTYk!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F969281b4-9347-4cdf-b7f7-30aeec2c58b3_851x631.png" data-component-name="Image2ToDOM" class="image-link image2 is-viewable-img can-restack"><div class="image2-inset"><picture><source type="image/webp" srcset="https://substackcdn.com/image/fetch/$s_!zTYk!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F969281b4-9347-4cdf-b7f7-30aeec2c58b3_851x631.png 424w, https://substackcdn.com/image/fetch/$s_!zTYk!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F969281b4-9347-4cdf-b7f7-30aeec2c58b3_851x631.png 848w, https://substackcdn.com/image/fetch/$s_!zTYk!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F969281b4-9347-4cdf-b7f7-30aeec2c58b3_851x631.png 1272w, https://substackcdn.com/image/fetch/$s_!zTYk!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F969281b4-9347-4cdf-b7f7-30aeec2c58b3_851x631.png 1456w" sizes="100vw"/><img src="https://substackcdn.com/image/fetch/$s_!zTYk!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F969281b4-9347-4cdf-b7f7-30aeec2c58b3_851x631.png" width="851" height="631" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/969281b4-9347-4cdf-b7f7-30aeec2c58b3_851x631.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:631,&quot;width&quot;:851,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:75876,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" alt srcset="https://substackcdn.com/image/fetch/$s_!zTYk!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F969281b4-9347-4cdf-b7f7-30aeec2c58b3_851x631.png 424w, https://substackcdn.com/image/fetch/$s_!zTYk!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F969281b4-9347-4cdf-b7f7-30aeec2c58b3_851x631.png 848w, https://substackcdn.com/image/fetch/$s_!zTYk!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F969281b4-9347-4cdf-b7f7-30aeec2c58b3_851x631.png 1272w, https://substackcdn.com/image/fetch/$s_!zTYk!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F969281b4-9347-4cdf-b7f7-30aeec2c58b3_851x631.png 1456w" sizes="100vw" loading="lazy" class="sizing-normal"/></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p>There are two predefined alerting rules to pick from:</p><ul><li><p>Fast-burn alert has 2 rules:</p><ul><li><p>Burn Rate: 14.4x</p><ul><li><p>Long lookback window: 1 hour</p></li><li><p>Short lookback window: 5 minutes</p></li></ul></li><li><p>Burn Rate: 6x</p><ul><li><p>Long lookback window: 6 hours</p></li><li><p>Short lookback window: 30 minutes</p></li></ul></li></ul></li><li><p>Slow-burn alert also has 2 rules:</p><ul><li><p>Burn Rate: 3x</p><ul><li><p>Long lookback window: 1 day</p></li><li><p>Short lookback window: 2 hours</p></li></ul></li><li><p>Burn Rate: 1x</p><ul><li><p>Long lookback window: 3 days</p></li><li><p>Short lookback window: 6 hours</p></li></ul></li></ul></li></ul><p><span>Apart from the 3x rule, the rest comply with </span><a href="https://sre.google/workbook/alerting-on-slos/">Google’s recommendation</a><span>:</span></p><div class="captioned-image-container"><figure><a target="_blank" href="https://substackcdn.com/image/fetch/$s_!FVzx!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb38333a8-7f97-4459-b393-a8b2e065fae2_946x438.png" data-component-name="Image2ToDOM" class="image-link image2 is-viewable-img can-restack"><div class="image2-inset"><picture><source type="image/webp" srcset="https://substackcdn.com/image/fetch/$s_!FVzx!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb38333a8-7f97-4459-b393-a8b2e065fae2_946x438.png 424w, https://substackcdn.com/image/fetch/$s_!FVzx!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb38333a8-7f97-4459-b393-a8b2e065fae2_946x438.png 848w, https://substackcdn.com/image/fetch/$s_!FVzx!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb38333a8-7f97-4459-b393-a8b2e065fae2_946x438.png 1272w, https://substackcdn.com/image/fetch/$s_!FVzx!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb38333a8-7f97-4459-b393-a8b2e065fae2_946x438.png 1456w" sizes="100vw"/><img src="https://substackcdn.com/image/fetch/$s_!FVzx!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb38333a8-7f97-4459-b393-a8b2e065fae2_946x438.png" width="946" height="438" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/b38333a8-7f97-4459-b393-a8b2e065fae2_946x438.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:438,&quot;width&quot;:946,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:45963,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" alt srcset="https://substackcdn.com/image/fetch/$s_!FVzx!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb38333a8-7f97-4459-b393-a8b2e065fae2_946x438.png 424w, https://substackcdn.com/image/fetch/$s_!FVzx!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb38333a8-7f97-4459-b393-a8b2e065fae2_946x438.png 848w, https://substackcdn.com/image/fetch/$s_!FVzx!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb38333a8-7f97-4459-b393-a8b2e065fae2_946x438.png 1272w, https://substackcdn.com/image/fetch/$s_!FVzx!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb38333a8-7f97-4459-b393-a8b2e065fae2_946x438.png 1456w" sizes="100vw" loading="lazy" class="sizing-normal"/></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p>Notice that Grafana does not provide a setting for adjusting the percentage of error budget that is allowed to be consumed before triggering the alert. That’s because their settings are primarily focused on the lookback window and burn rate.</p><p>I would prefer working with the percentages because they’re easier to reason about than a time period.</p><p>Which one would you pick:</p><ul><li><p>Trigger an alert after burning 2% of error budget at +14.4x</p></li><li><p>Trigger an alert after burning the error budget at +14.4x over the last 1h and still burning in the last 5 minutes</p></li></ul><p>The time-based settings are more sensible for the time-based SLIs —which as we discussed aren’t explicitly supported by Grafana. This is just confusing to me.</p><p><span>Another confusing option is the </span><em>Minimum Failure Threshold</em><span>:</span></p><div class="captioned-image-container"><figure><a target="_blank" href="https://substackcdn.com/image/fetch/$s_!ypZ5!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F7bdd06b6-ece5-41a0-9cd7-8d13bb394ba0_826x887.png" data-component-name="Image2ToDOM" class="image-link image2 is-viewable-img can-restack"><div class="image2-inset"><picture><source type="image/webp" srcset="https://substackcdn.com/image/fetch/$s_!ypZ5!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F7bdd06b6-ece5-41a0-9cd7-8d13bb394ba0_826x887.png 424w, https://substackcdn.com/image/fetch/$s_!ypZ5!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F7bdd06b6-ece5-41a0-9cd7-8d13bb394ba0_826x887.png 848w, https://substackcdn.com/image/fetch/$s_!ypZ5!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F7bdd06b6-ece5-41a0-9cd7-8d13bb394ba0_826x887.png 1272w, https://substackcdn.com/image/fetch/$s_!ypZ5!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F7bdd06b6-ece5-41a0-9cd7-8d13bb394ba0_826x887.png 1456w" sizes="100vw"/><img src="https://substackcdn.com/image/fetch/$s_!ypZ5!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F7bdd06b6-ece5-41a0-9cd7-8d13bb394ba0_826x887.png" width="826" height="887" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/7bdd06b6-ece5-41a0-9cd7-8d13bb394ba0_826x887.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:887,&quot;width&quot;:826,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:88424,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" alt srcset="https://substackcdn.com/image/fetch/$s_!ypZ5!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F7bdd06b6-ece5-41a0-9cd7-8d13bb394ba0_826x887.png 424w, https://substackcdn.com/image/fetch/$s_!ypZ5!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F7bdd06b6-ece5-41a0-9cd7-8d13bb394ba0_826x887.png 848w, https://substackcdn.com/image/fetch/$s_!ypZ5!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F7bdd06b6-ece5-41a0-9cd7-8d13bb394ba0_826x887.png 1272w, https://substackcdn.com/image/fetch/$s_!ypZ5!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F7bdd06b6-ece5-41a0-9cd7-8d13bb394ba0_826x887.png 1456w" sizes="100vw" loading="lazy" class="sizing-normal"/></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p><span>It is an </span><em>Advanced Option</em><span> allowing you to set the minimum number of failures required for the alert to fire. But I don’t understand why it’s necessary (I’m guessing it was added as an after-thought due to problems with the purely time-based alerting options namely when there’s not enough failures.</span></p><p>What is an alert without a notification? Unfortunately, the notification settings aren’t part of the wizard. All you get is this:</p><div class="captioned-image-container"><figure><a target="_blank" href="https://substackcdn.com/image/fetch/$s_!yCXr!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F080a20e9-2e4c-423d-bd1d-b71e62ecfdca_826x94.png" data-component-name="Image2ToDOM" class="image-link image2 can-restack"><div class="image2-inset"><picture><source type="image/webp" srcset="https://substackcdn.com/image/fetch/$s_!yCXr!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F080a20e9-2e4c-423d-bd1d-b71e62ecfdca_826x94.png 424w, https://substackcdn.com/image/fetch/$s_!yCXr!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F080a20e9-2e4c-423d-bd1d-b71e62ecfdca_826x94.png 848w, https://substackcdn.com/image/fetch/$s_!yCXr!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F080a20e9-2e4c-423d-bd1d-b71e62ecfdca_826x94.png 1272w, https://substackcdn.com/image/fetch/$s_!yCXr!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F080a20e9-2e4c-423d-bd1d-b71e62ecfdca_826x94.png 1456w" sizes="100vw"/><img src="https://substackcdn.com/image/fetch/$s_!yCXr!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F080a20e9-2e4c-423d-bd1d-b71e62ecfdca_826x94.png" width="826" height="94" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/080a20e9-2e4c-423d-bd1d-b71e62ecfdca_826x94.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:94,&quot;width&quot;:826,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:18133,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" alt srcset="https://substackcdn.com/image/fetch/$s_!yCXr!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F080a20e9-2e4c-423d-bd1d-b71e62ecfdca_826x94.png 424w, https://substackcdn.com/image/fetch/$s_!yCXr!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F080a20e9-2e4c-423d-bd1d-b71e62ecfdca_826x94.png 848w, https://substackcdn.com/image/fetch/$s_!yCXr!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F080a20e9-2e4c-423d-bd1d-b71e62ecfdca_826x94.png 1272w, https://substackcdn.com/image/fetch/$s_!yCXr!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F080a20e9-2e4c-423d-bd1d-b71e62ecfdca_826x94.png 1456w" sizes="100vw" loading="lazy" class="sizing-normal"/></picture><div></div></div></a></figure></div><p>If you click that link, you’ll be thrown into the generic alerting menu. This makes it easier for Grafana implementation DRY-wise but breaks the nice flow of the wizard.</p><p>Fortunately, the SLO Alerts will use the default notification policy, which is a sensible choice.</p><p>Step 5 is a review screen so it could totally be a 4-step process.</p><p>I did not see a live view of the SLO settings, something that had a prominent place in both Elastic and Datadog SLO setup screen.</p><p>Notice how Grafana happily accepted my unrealistic SLO of 100% while highlighting a 0% error budget in green:</p><div class="captioned-image-container"><figure><a target="_blank" href="https://substackcdn.com/image/fetch/$s_!0mZc!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F5a2b3a9a-6a9e-46be-95cf-0bd1d2bef276_851x847.png" data-component-name="Image2ToDOM" class="image-link image2 is-viewable-img can-restack"><div class="image2-inset"><picture><source type="image/webp" srcset="https://substackcdn.com/image/fetch/$s_!0mZc!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F5a2b3a9a-6a9e-46be-95cf-0bd1d2bef276_851x847.png 424w, https://substackcdn.com/image/fetch/$s_!0mZc!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F5a2b3a9a-6a9e-46be-95cf-0bd1d2bef276_851x847.png 848w, https://substackcdn.com/image/fetch/$s_!0mZc!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F5a2b3a9a-6a9e-46be-95cf-0bd1d2bef276_851x847.png 1272w, https://substackcdn.com/image/fetch/$s_!0mZc!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F5a2b3a9a-6a9e-46be-95cf-0bd1d2bef276_851x847.png 1456w" sizes="100vw"/><img src="https://substackcdn.com/image/fetch/$s_!0mZc!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F5a2b3a9a-6a9e-46be-95cf-0bd1d2bef276_851x847.png" width="851" height="847" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/5a2b3a9a-6a9e-46be-95cf-0bd1d2bef276_851x847.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:847,&quot;width&quot;:851,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:81647,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" alt srcset="https://substackcdn.com/image/fetch/$s_!0mZc!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F5a2b3a9a-6a9e-46be-95cf-0bd1d2bef276_851x847.png 424w, https://substackcdn.com/image/fetch/$s_!0mZc!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F5a2b3a9a-6a9e-46be-95cf-0bd1d2bef276_851x847.png 848w, https://substackcdn.com/image/fetch/$s_!0mZc!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F5a2b3a9a-6a9e-46be-95cf-0bd1d2bef276_851x847.png 1272w, https://substackcdn.com/image/fetch/$s_!0mZc!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F5a2b3a9a-6a9e-46be-95cf-0bd1d2bef276_851x847.png 1456w" sizes="100vw" loading="lazy" class="sizing-normal"/></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p>Fortunately, this should be very easy to fix: if it didn’t allow me to type 100% in step 2, this wouldn’t happen.</p><h1 class="header-anchor-post">Sum up<div class="pencraft pc-display-flex pc-alignItems-center pc-position-absolute pc-reset header-anchor-parent"><div class="pencraft pc-display-contents pc-reset pubTheme-yiXxQA"><div id="§sum-up" class="pencraft pc-reset header-anchor offset-top"></div><button tabindex="0" type="button" aria-label="Link" data-href="https://blog.alexewerlof.com/i/148723414/sum-up" class="pencraft pc-reset pencraft iconButton-mq_Et5 iconButtonBase-dJGHgN buttonBase-GK1x3M buttonStyle-r7yGCK size_sm-G3LciD priority_secondary-S63h9o"><svg xmlns="http://www.w3.org/2000/svg" width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-link"><path d="M10 13a5 5 0 0 0 7.54.54l3-3a5 5 0 0 0-7.07-7.07l-1.72 1.71"></path><path d="M14 11a5 5 0 0 0-7.54-.54l-3 3a5 5 0 0 0 7.07 7.07l1.71-1.71"></path></svg></button></div></div></h1><p>Datadog has the best UX followed closely by Grafana. The reason Datadog wins the UX is their excellent documentation which honestly is a great learning resource whether you use their platform or not.</p><p>Elastic’s UX looks similar to Datadog but more janky and less sensible copy. And short window is missing from the UI.</p><p>Grafana has the most complete options. It allows setting custom days for rolling windows but misses time-based SLIs.</p><p>Both Grafana and Datadog support setting SLOs on synthetic monitoring. I’m guessing Elastic does too but I didn’t try.</p><p><span>All 3 only support </span><a href="https://blog.alexewerlof.com/p/sli-heterogeneous-vs-homogeneous">heterogenous SLIs</a><span>.</span></p><p>Datadog has the most awesome out-of-the-box SLO dashboards again followed closely by Grafana.</p><p>Alerting is a very important aspect of SLOs. Admittedly it is hard to get right and I have it in my backlog to explain in a separate blog post.</p><div data-component-name="SubscribeWidget" class="subscribe-widget"><div class="pencraft pc-display-flex pc-justifyContent-center pc-reset"><div class="container-IpPqBD"><form action="/api/v1/free?nojs=true" method="post" novalidate class="form form-M5sC90"><input type="hidden" name="first_url" value/><input type="hidden" name="first_referrer" value/><input type="hidden" name="current_url"/><input type="hidden" name="current_referrer"/><input type="hidden" name="first_session_url" value/><input type="hidden" name="first_session_referrer" value/><input type="hidden" name="referral_code"/><input type="hidden" name="source" value="subscribe-widget"/><input type="hidden" name="referring_pub_id"/><input type="hidden" name="additional_referring_pub_ids"/><input type="hidden" name="source_post_id" value="148723414"/><div class="sideBySideWrap-vGXrwP"><div class="emailInputWrapper-QlA86j"><div class="pencraft pc-display-flex pc-minWidth-0 pc-position-relative pc-reset flex-auto-j3S2WA"><input name="email" placeholder="Type your email..." type="email" class="pencraft emailInput-OkIMeB input-y4v6N4 inputText-pV_yWb"/></div></div><button tabindex="0" type="submit" disabled class="pencraft pc-reset pencraft rightButton primary subscribe-btn button-VFSdkv buttonBase-GK1x3M"><span class="button-text ">Subscribe</span></button></div><div id="error-container"></div></form></div></div></div><p>Grafana has the best alerting setup for the mere fact that it is an integrated part of setting up the SLO. Both Datadog and Elastic require an extra step to set alerts.</p><p>Datadog and Elastic come second for different reasons:</p><ul><li><p>Datadog doesn’t have good defaults</p></li><li><p>Elastic has nice defaults but misses key configuration options</p></li></ul><p>Personally, I prefer Grafana when it comes to the SLO implementation.</p><div><hr/></div><p><em>These posts take anywhere from a few hours to a few days to ideate, draft, research, illustrate, edit, and publish. I pull these hours from my private time, vacation days and weekends.</em></p><p><em>Recently I went down in working hours and salary by 10% to be able to spend more time learning and sharing my experience with the public.</em></p><p><em><a href="https://blog.alexewerlof.com/p/faq#%C2%A7payment">My monetization strategy</a><span> is to give away most content for free because I believe information should be free and accessible. You can support this cause by sparing a few bucks for a paid subscription. As a token of appreciation, you get access to the Pro-Tips sections (on some articles) as well as my online book </span><a href="https://blog.alexewerlof.com/p/rem">Reliability Engineering Mindset</a><span>. Right now, you can get 20% off via </span><a href="https://blog.alexewerlof.com/protipsdiscount">this link</a><span>. You can also </span><a href="https://blog.alexewerlof.com/leaderboard">invite your friends</a><span> to gain free access or get a discounted group subscription. There’s also a </span><a href="https://blog.alexewerlof.com/leaderboard">referral bonus program to gain free subscriptions</a><span>.</span></em></p><p><em>Thanks in advance for helping these words reach further and impact the software engineering community.</em></p><div data-attrs="{&quot;url&quot;:&quot;https://blog.alexewerlof.com/p/slo-elastic-datadog-grafana?utm_source=substack&amp;utm_medium=email&amp;utm_content=share&amp;action=share&quot;,&quot;text&quot;:&quot;Share&quot;}" data-component-name="CaptionedButtonToDOM" class="captioned-button-wrap"><div class="preamble"><p class="cta-caption">If you find this post insightful, please share it in your circles to inspire others.</p></div><p data-attrs="{&quot;url&quot;:&quot;https://blog.alexewerlof.com/p/slo-elastic-datadog-grafana?utm_source=substack&amp;utm_medium=email&amp;utm_content=share&amp;action=share&quot;,&quot;text&quot;:&quot;Share&quot;}" data-component-name="ButtonCreateButton" class="button-wrapper"><a 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11.9708 15.6044 10.731 16.41C10.6056 16.4906 10.4758 16.5622 10.3416 16.6249C10.2118 16.692 10.0976 16.7256 9.99915 16.7256Z"></path></g></svg></div>Liked by Alex Ewerlöf</button></div></div><div class="pencraft pc-display-flex pc-flexDirection-column pc-reset flex-grow-rzmknG"></div><div class="pencraft pc-display-flex pc-reset comment-menu-trigger-container triggerContainer-eX588u"><button tabindex="0" type="button" aria-label="Ellipsis" id="radix-P0-83" aria-haspopup="menu" aria-expanded="false" data-state="closed" class="pencraft pc-reset pencraft trigger-j08Uop iconButton-mq_Et5 iconButtonBase-dJGHgN buttonBase-GK1x3M buttonStyle-r7yGCK size_sm-G3LciD priority_quaternary-kpMibu"><svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-ellipsis"><circle cx="12" cy="12" r="1"></circle><circle cx="19" cy="12" r="1"></circle><circle cx="5" cy="12" r="1"></circle></svg></button></div></div><div class="comment-body expanded"><p><span>> Elastic does not create alerts by default despite me setting a target for the SLO. This is a flaw they share with Datadog.</span></p><p><span>We create a burn rate rule with the sane defaults in the background based on your SLO. When you submit the SLO you should see a little notification like &quot;Burn rate rule created successfully&quot;. In the screenshot you posted, there was a button that said &quot;Manage burn rate rule&quot;, that's only active when the rule already exists. The &quot;Create burn rate rule&quot; link is also there because we allow users to create more that one burn rate rule per SLO. </span></p><p><span>Since this is a new product for us, we are continually collecting feedback and applying it. Thank you for including us in the review, we are taking notes :) </span></p></div><div class="pencraft pc-display-flex pc-gap-16 pc-paddingTop-8 pc-justifyContent-flex-start pc-alignItems-center pc-reset comment-actions withShareButton-hQzuEn"><span class="pencraft pc-reset decoration-hover-underline-ClDVRM reset-IxiVJZ"><a class="pencraft pc-reset link-_X6et2 link-LIBpto"><div class="pencraft pc-display-flex pc-gap-6 pc-alignItems-center pc-reset"><svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="var(--color-fg-secondary-themed)" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-message-circle"><path d="M7.9 20A9 9 0 1 0 4 16.1L2 22Z"></path></svg><div class="pencraft pc-reset color-pub-secondary-text-hGQ02T line-height-20-t4M0El font-meta-MWBumP size-11-NuY2Zx weight-medium-fw81nC transform-uppercase-yKDgcq reset-IxiVJZ meta-EgzBVA comment-actions-label">Reply</div></div></a></span><span 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id="comment-68876892" class="comment-anchor"></div><div id="comment-68876892-reply" class="comment-anchor"></div><div role="article" aria-label="Comment by Devin Cheevers" class="pencraft pc-display-flex pc-gap-12 pc-paddingBottom-12 pc-reset comment-content"><div class="pencraft pc-display-flex pc-flexDirection-column pc-reset"><a href="https://substack.com/profile/43710786-devin-cheevers?utm_source=comment" aria-label="View Devin Cheevers's profile" class="pencraft pc-display-contents pc-reset"><div style="--scale:32px;" tabindex="0" class="pencraft pc-display-flex pc-width-32 pc-height-32 pc-justifyContent-center pc-alignItems-center pc-position-relative pc-reset bg-secondary-UUD3_J flex-auto-j3S2WA animate-XFJxE4 outline-detail-vcQLyr pc-borderRadius-full overflow-hidden-WdpwT6 sizing-border-box-DggLA4 pressable-sm-YIJFKJ showFocus-sk_vEm container-TAtrWj interactive-UkK0V6"><div style="--scale:32px;" title="Devin Cheevers" class="pencraft pc-display-flex pc-width-32 pc-height-32 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src="https://substackcdn.com/image/fetch/$s_!HMtg!,w_32,h_32,c_fill,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F71ff477e-1316-4583-836a-0112851b3381_144x144.png" alt="Devin Cheevers's avatar" srcset="https://substackcdn.com/image/fetch/$s_!HMtg!,w_32,h_32,c_fill,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F71ff477e-1316-4583-836a-0112851b3381_144x144.png 1x, https://substackcdn.com/image/fetch/$s_!HMtg!,w_64,h_64,c_fill,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F71ff477e-1316-4583-836a-0112851b3381_144x144.png 2x, https://substackcdn.com/image/fetch/$s_!HMtg!,w_96,h_96,c_fill,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F71ff477e-1316-4583-836a-0112851b3381_144x144.png 3x" width="32" height="32" draggable="false" class="img-OACg1c object-fit-cover-u4ReeV pencraft pc-reset"/></picture></div></div></a></div><div class="pencraft pc-display-flex pc-flexDirection-column pc-reset flex-grow-rzmknG"><div class="pencraft pc-display-flex pc-reset"><div class="pencraft pc-display-flex pc-flexDirection-column pc-gap-4 pc-reset"><div class="pencraft pc-display-flex pc-minWidth-0 pc-gap-8 pc-alignItems-center pc-justifyContent-space-between pc-reset line-height-20-t4M0El font-text-qe4AeH size-15-Psle70 weight-regular-mUq6Gb"><div class="pencraft pc-display-flex pc-minWidth-0 pc-gap-8 pc-alignItems-center pc-reset flex-grow-rzmknG"><div class="pencraft pc-display-flex pc-gap-6 pc-reset color-primary-zABazT line-height-20-t4M0El font-text-qe4AeH size-13-hZTUKr weight-regular-mUq6Gb reset-IxiVJZ comment-author-name"><div class="pencraft pc-display-flex pc-gap-4 pc-minWidth-0 pc-alignItems-center pc-reset"><span class="pencraft pc-reset ellipsis-Jb8om8 line-height-20-t4M0El font-text-qe4AeH size-15-Psle70 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triggerContainer-eX588u"><button tabindex="0" type="button" aria-label="Ellipsis" id="radix-P0-89" aria-haspopup="menu" aria-expanded="false" data-state="closed" class="pencraft pc-reset pencraft trigger-j08Uop iconButton-mq_Et5 iconButtonBase-dJGHgN buttonBase-GK1x3M buttonStyle-r7yGCK size_sm-G3LciD priority_quaternary-kpMibu"><svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-ellipsis"><circle cx="12" cy="12" r="1"></circle><circle cx="19" cy="12" r="1"></circle><circle cx="5" cy="12" r="1"></circle></svg></button></div></div><div class="comment-body expanded"><p><span>Thank you for this great writeup. I work on the SLO product at Grafana and appreciate the feedback in here, we'll review and look to address in future releases. </span></p></div><div class="pencraft pc-display-flex pc-gap-16 pc-paddingTop-8 pc-justifyContent-flex-start pc-alignItems-center pc-reset comment-actions withShareButton-hQzuEn"><span class="pencraft pc-reset decoration-hover-underline-ClDVRM reset-IxiVJZ"><a class="pencraft pc-reset link-_X6et2 link-LIBpto"><div class="pencraft pc-display-flex pc-gap-6 pc-alignItems-center pc-reset"><svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="var(--color-fg-secondary-themed)" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-message-circle"><path d="M7.9 20A9 9 0 1 0 4 16.1L2 22Z"></path></svg><div class="pencraft pc-reset color-pub-secondary-text-hGQ02T line-height-20-t4M0El font-meta-MWBumP size-11-NuY2Zx weight-medium-fw81nC transform-uppercase-yKDgcq reset-IxiVJZ meta-EgzBVA 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the Service Level implementation in 3 observability providers\",\"body_html\":\"<div class=\\\"captioned-image-container\\\"><figure><a class=\\\"image-link image2 is-viewable-img\\\" target=\\\"_blank\\\" href=\\\"https://substackcdn.com/image/fetch/$s_!nB3Z!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc536dcd0-3ce6-45ae-a47a-053162600c7e_1038x419.png\\\" data-component-name=\\\"Image2ToDOM\\\"><div class=\\\"image2-inset\\\"><picture><source type=\\\"image/webp\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!nB3Z!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc536dcd0-3ce6-45ae-a47a-053162600c7e_1038x419.png 424w, https://substackcdn.com/image/fetch/$s_!nB3Z!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc536dcd0-3ce6-45ae-a47a-053162600c7e_1038x419.png 848w, https://substackcdn.com/image/fetch/$s_!nB3Z!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc536dcd0-3ce6-45ae-a47a-053162600c7e_1038x419.png 1272w, https://substackcdn.com/image/fetch/$s_!nB3Z!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc536dcd0-3ce6-45ae-a47a-053162600c7e_1038x419.png 1456w\\\" sizes=\\\"100vw\\\"><img src=\\\"https://substackcdn.com/image/fetch/$s_!nB3Z!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc536dcd0-3ce6-45ae-a47a-053162600c7e_1038x419.png\\\" width=\\\"1038\\\" height=\\\"419\\\" data-attrs=\\\"{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/c536dcd0-3ce6-45ae-a47a-053162600c7e_1038x419.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:419,&quot;width&quot;:1038,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:72103,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:false,&quot;topImage&quot;:true,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}\\\" class=\\\"sizing-normal\\\" alt=\\\"\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!nB3Z!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc536dcd0-3ce6-45ae-a47a-053162600c7e_1038x419.png 424w, 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width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 20 20\\\" fill=\\\"none\\\" stroke-width=\\\"1.5\\\" stroke=\\\"var(--color-fg-primary)\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><g><path d=\\\"M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882\\\"></path></g></svg></button><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container view-image\\\"><svg xmlns=\\\"http://www.w3.org/2000/svg\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 24 24\\\" fill=\\\"none\\\" stroke=\\\"currentColor\\\" stroke-width=\\\"2\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" class=\\\"lucide lucide-maximize2 lucide-maximize-2\\\"><polyline points=\\\"15 3 21 3 21 9\\\"></polyline><polyline points=\\\"9 21 3 21 3 15\\\"></polyline><line x1=\\\"21\\\" x2=\\\"14\\\" y1=\\\"3\\\" y2=\\\"10\\\"></line><line x1=\\\"3\\\" x2=\\\"10\\\" y1=\\\"21\\\" y2=\\\"14\\\"></line></svg></button></div></div></div></a></figure></div><p>I\u2019ve spent the past few years learning, <a href=\\\"https://blog.alexewerlof.com/p/rem\\\">teaching</a>, and <a href=\\\"https://slc.alexewerlof.com/\\\">coding</a> service levels. So I got curious to see how the well-known observability providers implement it.</p><p>This post is my independent review of all 3 with snapshots.</p><h3>Disclaimers</h3><ul><li><p><em>This is not a paid or affiliated review. None of the vendors got the chance to see my review before it went public and I\u2019ll clearly mention if they ask me to do an update.</em></p></li><li><p><em>This review was carried at early September 2024 on the same day for all 3. Obviously, the UI and feature set may change in the future.</em></p></li><li><p><em>If I missed or misunderstood something, you can correct me in the comments.</em></p></li><li><p><em>I don\u2019t represent my current or past employers or customers on my personal blog. This review is my independent investigation.</em></p></li></ul><h1>Elastic</h1><p>The first stop is Elastic because they were open source, then they were not, and recently <a href=\\\"https://www.elastic.co/blog/elasticsearch-is-open-source-again\\\">they are open source again</a>!</p><p>Unfortunately, the SLO feature is <a href=\\\"https://www.elastic.co/pricing\\\">only available in their Platinum price tier</a> at the time of this writing. I <em>really</em> hope this will change because if metrics are data, Service Level is the perspective that makes that data actionable in relation to business objectives and consumer needs.</p><p>Charging for SLOs separately is like charging a premium for GPS navigation system of a car. Do vendors do that? Yes. But they also force the majority to use their phone instead. SLO is not rocket science, don\u2019t force people to use alternative solutions just to take full advantage of the data they\u2019re already sending your way! If anything, having SLO on all plans is a motivator to send more data because of the value it creates.</p><p>So I\u2019m gonna go MKBHD on this one:</p><div class=\\\"captioned-image-container\\\"><figure><a class=\\\"image-link image2 is-viewable-img\\\" target=\\\"_blank\\\" href=\\\"https://substackcdn.com/image/fetch/$s_!3sIq!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F0b37552b-2569-4446-b16e-72dd51b2257c_500x556.jpeg\\\" data-component-name=\\\"Image2ToDOM\\\"><div class=\\\"image2-inset\\\"><picture><source type=\\\"image/webp\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!3sIq!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F0b37552b-2569-4446-b16e-72dd51b2257c_500x556.jpeg 424w, https://substackcdn.com/image/fetch/$s_!3sIq!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F0b37552b-2569-4446-b16e-72dd51b2257c_500x556.jpeg 848w, https://substackcdn.com/image/fetch/$s_!3sIq!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F0b37552b-2569-4446-b16e-72dd51b2257c_500x556.jpeg 1272w, https://substackcdn.com/image/fetch/$s_!3sIq!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F0b37552b-2569-4446-b16e-72dd51b2257c_500x556.jpeg 1456w\\\" sizes=\\\"100vw\\\"><img src=\\\"https://substackcdn.com/image/fetch/$s_!3sIq!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F0b37552b-2569-4446-b16e-72dd51b2257c_500x556.jpeg\\\" width=\\\"500\\\" height=\\\"556\\\" data-attrs=\\\"{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/0b37552b-2569-4446-b16e-72dd51b2257c_500x556.jpeg&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:556,&quot;width&quot;:500,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:null,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:null,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}\\\" class=\\\"sizing-normal\\\" alt=\\\"\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!3sIq!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F0b37552b-2569-4446-b16e-72dd51b2257c_500x556.jpeg 424w, https://substackcdn.com/image/fetch/$s_!3sIq!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F0b37552b-2569-4446-b16e-72dd51b2257c_500x556.jpeg 848w, https://substackcdn.com/image/fetch/$s_!3sIq!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F0b37552b-2569-4446-b16e-72dd51b2257c_500x556.jpeg 1272w, https://substackcdn.com/image/fetch/$s_!3sIq!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F0b37552b-2569-4446-b16e-72dd51b2257c_500x556.jpeg 1456w\\\" sizes=\\\"100vw\\\" loading=\\\"lazy\\\"></picture><div class=\\\"image-link-expand\\\"><div class=\\\"pencraft pc-display-flex pc-gap-8 pc-reset\\\"><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container restack-image\\\"><svg aria-hidden=\\\"true\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 20 20\\\" fill=\\\"none\\\" stroke-width=\\\"1.5\\\" stroke=\\\"var(--color-fg-primary)\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><g><path d=\\\"M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882\\\"></path></g></svg></button><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container view-image\\\"><svg xmlns=\\\"http://www.w3.org/2000/svg\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 24 24\\\" fill=\\\"none\\\" stroke=\\\"currentColor\\\" stroke-width=\\\"2\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" class=\\\"lucide lucide-maximize2 lucide-maximize-2\\\"><polyline points=\\\"15 3 21 3 21 9\\\"></polyline><polyline points=\\\"9 21 3 21 3 15\\\"></polyline><line x1=\\\"21\\\" x2=\\\"14\\\" y1=\\\"3\\\" y2=\\\"10\\\"></line><line x1=\\\"3\\\" x2=\\\"10\\\" y1=\\\"21\\\" y2=\\\"14\\\"></line></svg></button></div></div></div></a></figure></div><p>Once you do have access, SLOs have a prominent place in Elastic UI which is great!</p><div class=\\\"captioned-image-container\\\"><figure><a class=\\\"image-link image2 is-viewable-img\\\" target=\\\"_blank\\\" href=\\\"https://substackcdn.com/image/fetch/$s_!SnaG!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F74232cb1-9e81-4430-8c79-af8ee0e65d99_265x402.png\\\" data-component-name=\\\"Image2ToDOM\\\"><div class=\\\"image2-inset\\\"><picture><source type=\\\"image/webp\\\" 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src=\\\"https://substackcdn.com/image/fetch/$s_!SnaG!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F74232cb1-9e81-4430-8c79-af8ee0e65d99_265x402.png\\\" width=\\\"265\\\" height=\\\"402\\\" data-attrs=\\\"{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/74232cb1-9e81-4430-8c79-af8ee0e65d99_265x402.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:402,&quot;width&quot;:265,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:19960,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}\\\" class=\\\"sizing-normal\\\" alt=\\\"\\\" 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class=\\\"image-link-expand\\\"><div class=\\\"pencraft pc-display-flex pc-gap-8 pc-reset\\\"><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container restack-image\\\"><svg aria-hidden=\\\"true\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 20 20\\\" fill=\\\"none\\\" stroke-width=\\\"1.5\\\" stroke=\\\"var(--color-fg-primary)\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><g><path d=\\\"M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882\\\"></path></g></svg></button><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container view-image\\\"><svg xmlns=\\\"http://www.w3.org/2000/svg\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 24 24\\\" fill=\\\"none\\\" stroke=\\\"currentColor\\\" stroke-width=\\\"2\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" class=\\\"lucide lucide-maximize2 lucide-maximize-2\\\"><polyline points=\\\"15 3 21 3 21 9\\\"></polyline><polyline points=\\\"9 21 3 21 3 15\\\"></polyline><line x1=\\\"21\\\" x2=\\\"14\\\" y1=\\\"3\\\" y2=\\\"10\\\"></line><line x1=\\\"3\\\" x2=\\\"10\\\" y1=\\\"21\\\" y2=\\\"14\\\"></line></svg></button></div></div></div></a></figure></div><p>Elastic uses a 3-step single page setup for creating new SLOs:</p><div class=\\\"captioned-image-container\\\"><figure><a class=\\\"image-link image2 is-viewable-img\\\" target=\\\"_blank\\\" href=\\\"https://substackcdn.com/image/fetch/$s_!q4q6!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F44cb5ca9-56d7-4d34-80ee-62a0ec995413_864x1092.png\\\" data-component-name=\\\"Image2ToDOM\\\"><div class=\\\"image2-inset\\\"><picture><source type=\\\"image/webp\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!q4q6!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F44cb5ca9-56d7-4d34-80ee-62a0ec995413_864x1092.png 424w, https://substackcdn.com/image/fetch/$s_!q4q6!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F44cb5ca9-56d7-4d34-80ee-62a0ec995413_864x1092.png 848w, https://substackcdn.com/image/fetch/$s_!q4q6!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F44cb5ca9-56d7-4d34-80ee-62a0ec995413_864x1092.png 1272w, https://substackcdn.com/image/fetch/$s_!q4q6!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F44cb5ca9-56d7-4d34-80ee-62a0ec995413_864x1092.png 1456w\\\" sizes=\\\"100vw\\\"><img src=\\\"https://substackcdn.com/image/fetch/$s_!q4q6!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F44cb5ca9-56d7-4d34-80ee-62a0ec995413_864x1092.png\\\" width=\\\"864\\\" height=\\\"1092\\\" data-attrs=\\\"{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/44cb5ca9-56d7-4d34-80ee-62a0ec995413_864x1092.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:1092,&quot;width&quot;:864,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:74461,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}\\\" class=\\\"sizing-normal\\\" alt=\\\"\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!q4q6!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F44cb5ca9-56d7-4d34-80ee-62a0ec995413_864x1092.png 424w, https://substackcdn.com/image/fetch/$s_!q4q6!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F44cb5ca9-56d7-4d34-80ee-62a0ec995413_864x1092.png 848w, https://substackcdn.com/image/fetch/$s_!q4q6!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F44cb5ca9-56d7-4d34-80ee-62a0ec995413_864x1092.png 1272w, https://substackcdn.com/image/fetch/$s_!q4q6!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F44cb5ca9-56d7-4d34-80ee-62a0ec995413_864x1092.png 1456w\\\" sizes=\\\"100vw\\\" loading=\\\"lazy\\\"></picture><div class=\\\"image-link-expand\\\"><div class=\\\"pencraft pc-display-flex pc-gap-8 pc-reset\\\"><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container restack-image\\\"><svg aria-hidden=\\\"true\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 20 20\\\" fill=\\\"none\\\" stroke-width=\\\"1.5\\\" stroke=\\\"var(--color-fg-primary)\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><g><path d=\\\"M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882\\\"></path></g></svg></button><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container view-image\\\"><svg xmlns=\\\"http://www.w3.org/2000/svg\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 24 24\\\" fill=\\\"none\\\" stroke=\\\"currentColor\\\" stroke-width=\\\"2\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" class=\\\"lucide lucide-maximize2 lucide-maximize-2\\\"><polyline points=\\\"15 3 21 3 21 9\\\"></polyline><polyline points=\\\"9 21 3 21 3 15\\\"></polyline><line x1=\\\"21\\\" x2=\\\"14\\\" y1=\\\"3\\\" y2=\\\"10\\\"></line><line x1=\\\"3\\\" x2=\\\"10\\\" y1=\\\"21\\\" y2=\\\"14\\\"></line></svg></button></div></div></div></a></figure></div><p>Right off the bat, you have to choose a SLI type:</p><div class=\\\"captioned-image-container\\\"><figure><a class=\\\"image-link image2 is-viewable-img\\\" target=\\\"_blank\\\" href=\\\"https://substackcdn.com/image/fetch/$s_!KFD3!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6fd5c8a8-46e5-4da2-937f-14448ea3a3f0_424x260.png\\\" data-component-name=\\\"Image2ToDOM\\\"><div class=\\\"image2-inset\\\"><picture><source type=\\\"image/webp\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!KFD3!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6fd5c8a8-46e5-4da2-937f-14448ea3a3f0_424x260.png 424w, https://substackcdn.com/image/fetch/$s_!KFD3!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6fd5c8a8-46e5-4da2-937f-14448ea3a3f0_424x260.png 848w, https://substackcdn.com/image/fetch/$s_!KFD3!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6fd5c8a8-46e5-4da2-937f-14448ea3a3f0_424x260.png 1272w, https://substackcdn.com/image/fetch/$s_!KFD3!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6fd5c8a8-46e5-4da2-937f-14448ea3a3f0_424x260.png 1456w\\\" sizes=\\\"100vw\\\"><img src=\\\"https://substackcdn.com/image/fetch/$s_!KFD3!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6fd5c8a8-46e5-4da2-937f-14448ea3a3f0_424x260.png\\\" width=\\\"424\\\" height=\\\"260\\\" data-attrs=\\\"{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/6fd5c8a8-46e5-4da2-937f-14448ea3a3f0_424x260.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:260,&quot;width&quot;:424,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:21278,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}\\\" class=\\\"sizing-normal\\\" alt=\\\"\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!KFD3!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6fd5c8a8-46e5-4da2-937f-14448ea3a3f0_424x260.png 424w, https://substackcdn.com/image/fetch/$s_!KFD3!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6fd5c8a8-46e5-4da2-937f-14448ea3a3f0_424x260.png 848w, https://substackcdn.com/image/fetch/$s_!KFD3!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6fd5c8a8-46e5-4da2-937f-14448ea3a3f0_424x260.png 1272w, https://substackcdn.com/image/fetch/$s_!KFD3!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6fd5c8a8-46e5-4da2-937f-14448ea3a3f0_424x260.png 1456w\\\" sizes=\\\"100vw\\\" loading=\\\"lazy\\\"></picture><div class=\\\"image-link-expand\\\"><div class=\\\"pencraft pc-display-flex pc-gap-8 pc-reset\\\"><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container restack-image\\\"><svg aria-hidden=\\\"true\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 20 20\\\" fill=\\\"none\\\" stroke-width=\\\"1.5\\\" stroke=\\\"var(--color-fg-primary)\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><g><path d=\\\"M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882\\\"></path></g></svg></button><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container view-image\\\"><svg xmlns=\\\"http://www.w3.org/2000/svg\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 24 24\\\" fill=\\\"none\\\" stroke=\\\"currentColor\\\" stroke-width=\\\"2\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" class=\\\"lucide lucide-maximize2 lucide-maximize-2\\\"><polyline points=\\\"15 3 21 3 21 9\\\"></polyline><polyline points=\\\"9 21 3 21 3 15\\\"></polyline><line x1=\\\"21\\\" x2=\\\"14\\\" y1=\\\"3\\\" y2=\\\"10\\\"></line><line x1=\\\"3\\\" x2=\\\"10\\\" y1=\\\"21\\\" y2=\\\"14\\\"></line></svg></button></div></div></div></a></figure></div><p>As <a href=\\\"https://blog.alexewerlof.com/p/sli\\\">discussed before</a>, there are only 2 types of SLI:</p><ul><li><p>Event-based: count the percentage of good events in a period</p></li><li><p>Time-based: count the percentage of good timeslots in a period</p></li></ul><p>Later the UI Elastic has the \u201CBudgeting Method\u201D which tells me that the Elastic team is aware of the two SLI types:</p><div class=\\\"captioned-image-container\\\"><figure><a class=\\\"image-link image2\\\" target=\\\"_blank\\\" href=\\\"https://substackcdn.com/image/fetch/$s_!X93B!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9075d5f9-b2e5-4d65-b8b2-92ce5ffdaae7_252x129.png\\\" data-component-name=\\\"Image2ToDOM\\\"><div class=\\\"image2-inset\\\"><picture><source type=\\\"image/webp\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!X93B!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9075d5f9-b2e5-4d65-b8b2-92ce5ffdaae7_252x129.png 424w, https://substackcdn.com/image/fetch/$s_!X93B!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9075d5f9-b2e5-4d65-b8b2-92ce5ffdaae7_252x129.png 848w, https://substackcdn.com/image/fetch/$s_!X93B!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9075d5f9-b2e5-4d65-b8b2-92ce5ffdaae7_252x129.png 1272w, https://substackcdn.com/image/fetch/$s_!X93B!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9075d5f9-b2e5-4d65-b8b2-92ce5ffdaae7_252x129.png 1456w\\\" sizes=\\\"100vw\\\"><img src=\\\"https://substackcdn.com/image/fetch/$s_!X93B!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9075d5f9-b2e5-4d65-b8b2-92ce5ffdaae7_252x129.png\\\" width=\\\"252\\\" height=\\\"129\\\" data-attrs=\\\"{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/9075d5f9-b2e5-4d65-b8b2-92ce5ffdaae7_252x129.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:129,&quot;width&quot;:252,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:null,&quot;alt&quot;:&quot;&quot;,&quot;title&quot;:null,&quot;type&quot;:null,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}\\\" class=\\\"sizing-normal\\\" alt=\\\"\\\" title=\\\"\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!X93B!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9075d5f9-b2e5-4d65-b8b2-92ce5ffdaae7_252x129.png 424w, https://substackcdn.com/image/fetch/$s_!X93B!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9075d5f9-b2e5-4d65-b8b2-92ce5ffdaae7_252x129.png 848w, https://substackcdn.com/image/fetch/$s_!X93B!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9075d5f9-b2e5-4d65-b8b2-92ce5ffdaae7_252x129.png 1272w, https://substackcdn.com/image/fetch/$s_!X93B!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9075d5f9-b2e5-4d65-b8b2-92ce5ffdaae7_252x129.png 1456w\\\" sizes=\\\"100vw\\\" loading=\\\"lazy\\\"></picture><div></div></div></a></figure></div><p>The \u201CSLI type\u201D drop down seems unnecessarily complicated but as we\u2019ll see shortly, Datadog is doing something similar. I\u2019d drop the word \u201Ctype\u201D or use \u201Ctemplates\u201D instead because where\u2019s in the menu (latency, availability, etc.) are common SLI examples.</p><p>Let\u2019s pick one and roll with it.</p><div class=\\\"captioned-image-container\\\"><figure><a class=\\\"image-link image2 is-viewable-img\\\" target=\\\"_blank\\\" href=\\\"https://substackcdn.com/image/fetch/$s_!sVvt!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F323f7cb0-d4ce-4ca6-97a3-a9f66d078919_857x835.png\\\" data-component-name=\\\"Image2ToDOM\\\"><div class=\\\"image2-inset\\\"><picture><source type=\\\"image/webp\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!sVvt!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F323f7cb0-d4ce-4ca6-97a3-a9f66d078919_857x835.png 424w, https://substackcdn.com/image/fetch/$s_!sVvt!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F323f7cb0-d4ce-4ca6-97a3-a9f66d078919_857x835.png 848w, https://substackcdn.com/image/fetch/$s_!sVvt!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F323f7cb0-d4ce-4ca6-97a3-a9f66d078919_857x835.png 1272w, https://substackcdn.com/image/fetch/$s_!sVvt!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F323f7cb0-d4ce-4ca6-97a3-a9f66d078919_857x835.png 1456w\\\" sizes=\\\"100vw\\\"><img src=\\\"https://substackcdn.com/image/fetch/$s_!sVvt!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F323f7cb0-d4ce-4ca6-97a3-a9f66d078919_857x835.png\\\" width=\\\"857\\\" height=\\\"835\\\" data-attrs=\\\"{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/323f7cb0-d4ce-4ca6-97a3-a9f66d078919_857x835.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:835,&quot;width&quot;:857,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:70277,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}\\\" class=\\\"sizing-normal\\\" alt=\\\"\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!sVvt!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F323f7cb0-d4ce-4ca6-97a3-a9f66d078919_857x835.png 424w, https://substackcdn.com/image/fetch/$s_!sVvt!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F323f7cb0-d4ce-4ca6-97a3-a9f66d078919_857x835.png 848w, https://substackcdn.com/image/fetch/$s_!sVvt!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F323f7cb0-d4ce-4ca6-97a3-a9f66d078919_857x835.png 1272w, https://substackcdn.com/image/fetch/$s_!sVvt!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F323f7cb0-d4ce-4ca6-97a3-a9f66d078919_857x835.png 1456w\\\" sizes=\\\"100vw\\\" loading=\\\"lazy\\\"></picture><div class=\\\"image-link-expand\\\"><div class=\\\"pencraft pc-display-flex pc-gap-8 pc-reset\\\"><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container restack-image\\\"><svg aria-hidden=\\\"true\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 20 20\\\" fill=\\\"none\\\" stroke-width=\\\"1.5\\\" stroke=\\\"var(--color-fg-primary)\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><g><path d=\\\"M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882\\\"></path></g></svg></button><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container view-image\\\"><svg xmlns=\\\"http://www.w3.org/2000/svg\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 24 24\\\" fill=\\\"none\\\" stroke=\\\"currentColor\\\" stroke-width=\\\"2\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" class=\\\"lucide lucide-maximize2 lucide-maximize-2\\\"><polyline points=\\\"15 3 21 3 21 9\\\"></polyline><polyline points=\\\"9 21 3 21 3 15\\\"></polyline><line x1=\\\"21\\\" x2=\\\"14\\\" y1=\\\"3\\\" y2=\\\"10\\\"></line><line x1=\\\"3\\\" x2=\\\"10\\\" y1=\\\"21\\\" y2=\\\"14\\\"></line></svg></button></div></div></div></a></figure></div><p>It\u2019s nice to see a live preview of the SLI. The <em>Threshold</em> field only allows setting the upper threshold:</p><div class=\\\"captioned-image-container\\\"><figure><a class=\\\"image-link image2\\\" target=\\\"_blank\\\" href=\\\"https://substackcdn.com/image/fetch/$s_!_Iqg!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F99fe3f4b-d81c-4dc6-bfd9-e2bc2f399857_435x182.png\\\" data-component-name=\\\"Image2ToDOM\\\"><div class=\\\"image2-inset\\\"><picture><source type=\\\"image/webp\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!_Iqg!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F99fe3f4b-d81c-4dc6-bfd9-e2bc2f399857_435x182.png 424w, https://substackcdn.com/image/fetch/$s_!_Iqg!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F99fe3f4b-d81c-4dc6-bfd9-e2bc2f399857_435x182.png 848w, https://substackcdn.com/image/fetch/$s_!_Iqg!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F99fe3f4b-d81c-4dc6-bfd9-e2bc2f399857_435x182.png 1272w, https://substackcdn.com/image/fetch/$s_!_Iqg!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F99fe3f4b-d81c-4dc6-bfd9-e2bc2f399857_435x182.png 1456w\\\" sizes=\\\"100vw\\\"><img src=\\\"https://substackcdn.com/image/fetch/$s_!_Iqg!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F99fe3f4b-d81c-4dc6-bfd9-e2bc2f399857_435x182.png\\\" width=\\\"435\\\" height=\\\"182\\\" data-attrs=\\\"{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/99fe3f4b-d81c-4dc6-bfd9-e2bc2f399857_435x182.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:182,&quot;width&quot;:435,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:18124,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}\\\" class=\\\"sizing-normal\\\" alt=\\\"\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!_Iqg!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F99fe3f4b-d81c-4dc6-bfd9-e2bc2f399857_435x182.png 424w, https://substackcdn.com/image/fetch/$s_!_Iqg!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F99fe3f4b-d81c-4dc6-bfd9-e2bc2f399857_435x182.png 848w, https://substackcdn.com/image/fetch/$s_!_Iqg!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F99fe3f4b-d81c-4dc6-bfd9-e2bc2f399857_435x182.png 1272w, https://substackcdn.com/image/fetch/$s_!_Iqg!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F99fe3f4b-d81c-4dc6-bfd9-e2bc2f399857_435x182.png 1456w\\\" sizes=\\\"100vw\\\" loading=\\\"lazy\\\"></picture><div></div></div></a></figure></div><p>Aside from being upper-bound, the <a href=\\\"https://blog.alexewerlof.com/p/sli-good\\\">definition of Good</a> may be lower-bound or even bound between two thresholds. Those options aren\u2019t available.</p><p><em>Note: it is possible to convert any definition of good to look upper-bound. But that creates complexity that you\u2019d expect your observability platform to handle out of the box.</em></p><p>There are 2 types of <a href=\\\"https://blog.alexewerlof.com/p/compliance-period\\\">compliance period</a> (Time Window):</p><ul><li><p>Rolling: e.g. always check the last 30 days</p></li><li><p>Calendar-bound: e.g. check the budget in the current month</p></li></ul><p>In Elastic, your choice of <em>Duration</em> for rolling window<em>,</em> however, is limited to 7, 30, and 90 (just like Datadog).</p><div class=\\\"captioned-image-container\\\"><figure><a class=\\\"image-link image2\\\" target=\\\"_blank\\\" href=\\\"https://substackcdn.com/image/fetch/$s_!30YG!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fdb274374-d1ec-43ac-94a8-fa9abced9360_571x182.png\\\" data-component-name=\\\"Image2ToDOM\\\"><div class=\\\"image2-inset\\\"><picture><source type=\\\"image/webp\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!30YG!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fdb274374-d1ec-43ac-94a8-fa9abced9360_571x182.png 424w, https://substackcdn.com/image/fetch/$s_!30YG!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fdb274374-d1ec-43ac-94a8-fa9abced9360_571x182.png 848w, https://substackcdn.com/image/fetch/$s_!30YG!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fdb274374-d1ec-43ac-94a8-fa9abced9360_571x182.png 1272w, https://substackcdn.com/image/fetch/$s_!30YG!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fdb274374-d1ec-43ac-94a8-fa9abced9360_571x182.png 1456w\\\" sizes=\\\"100vw\\\"><img src=\\\"https://substackcdn.com/image/fetch/$s_!30YG!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fdb274374-d1ec-43ac-94a8-fa9abced9360_571x182.png\\\" width=\\\"571\\\" height=\\\"182\\\" data-attrs=\\\"{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/db274374-d1ec-43ac-94a8-fa9abced9360_571x182.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:182,&quot;width&quot;:571,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:15424,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}\\\" class=\\\"sizing-normal\\\" alt=\\\"\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!30YG!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fdb274374-d1ec-43ac-94a8-fa9abced9360_571x182.png 424w, https://substackcdn.com/image/fetch/$s_!30YG!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fdb274374-d1ec-43ac-94a8-fa9abced9360_571x182.png 848w, https://substackcdn.com/image/fetch/$s_!30YG!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fdb274374-d1ec-43ac-94a8-fa9abced9360_571x182.png 1272w, https://substackcdn.com/image/fetch/$s_!30YG!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fdb274374-d1ec-43ac-94a8-fa9abced9360_571x182.png 1456w\\\" sizes=\\\"100vw\\\" loading=\\\"lazy\\\"></picture><div></div></div></a></figure></div><p>Grafana is the only one that allows any number and as we\u2019ll discuss the most important missing option is 28 days.</p><p>Elastic is the only one in this review that supports <a href=\\\"https://blog.alexewerlof.com/p/compliance-period\\\">Calendar-Bound SLO window</a>s out of the box.</p><p>Unfortunately, you have even fewer options: weekly and monthly.</p><p>Weekly is particularly tricky because different countries across the world <a href=\\\"https://en.wikipedia.org/wiki/Week\\\">start the week on different days</a>:</p><div class=\\\"captioned-image-container\\\"><figure><a class=\\\"image-link image2 is-viewable-img\\\" target=\\\"_blank\\\" href=\\\"https://substackcdn.com/image/fetch/$s_!qnLe!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa435e6af-fa4d-4f46-947f-fefc6fc9afab_2754x1398.svg\\\" data-component-name=\\\"Image2ToDOM\\\"><div class=\\\"image2-inset\\\"><picture><source type=\\\"image/webp\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!qnLe!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa435e6af-fa4d-4f46-947f-fefc6fc9afab_2754x1398.svg 424w, https://substackcdn.com/image/fetch/$s_!qnLe!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa435e6af-fa4d-4f46-947f-fefc6fc9afab_2754x1398.svg 848w, https://substackcdn.com/image/fetch/$s_!qnLe!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa435e6af-fa4d-4f46-947f-fefc6fc9afab_2754x1398.svg 1272w, https://substackcdn.com/image/fetch/$s_!qnLe!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa435e6af-fa4d-4f46-947f-fefc6fc9afab_2754x1398.svg 1456w\\\" sizes=\\\"100vw\\\"><img src=\\\"https://substackcdn.com/image/fetch/$s_!qnLe!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa435e6af-fa4d-4f46-947f-fefc6fc9afab_2754x1398.svg\\\" width=\\\"1456\\\" height=\\\"739\\\" data-attrs=\\\"{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/a435e6af-fa4d-4f46-947f-fefc6fc9afab_2754x1398.svg&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:739,&quot;width&quot;:1456,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:null,&quot;alt&quot;:&quot;wikipedia&quot;,&quot;title&quot;:null,&quot;type&quot;:null,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}\\\" class=\\\"sizing-normal\\\" alt=\\\"wikipedia\\\" title=\\\"wikipedia\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!qnLe!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa435e6af-fa4d-4f46-947f-fefc6fc9afab_2754x1398.svg 424w, https://substackcdn.com/image/fetch/$s_!qnLe!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa435e6af-fa4d-4f46-947f-fefc6fc9afab_2754x1398.svg 848w, https://substackcdn.com/image/fetch/$s_!qnLe!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa435e6af-fa4d-4f46-947f-fefc6fc9afab_2754x1398.svg 1272w, https://substackcdn.com/image/fetch/$s_!qnLe!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa435e6af-fa4d-4f46-947f-fefc6fc9afab_2754x1398.svg 1456w\\\" sizes=\\\"100vw\\\" loading=\\\"lazy\\\"></picture><div class=\\\"image-link-expand\\\"><div class=\\\"pencraft pc-display-flex pc-gap-8 pc-reset\\\"><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container restack-image\\\"><svg aria-hidden=\\\"true\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 20 20\\\" fill=\\\"none\\\" stroke-width=\\\"1.5\\\" stroke=\\\"var(--color-fg-primary)\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><g><path d=\\\"M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882\\\"></path></g></svg></button><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container view-image\\\"><svg xmlns=\\\"http://www.w3.org/2000/svg\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 24 24\\\" fill=\\\"none\\\" stroke=\\\"currentColor\\\" stroke-width=\\\"2\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" class=\\\"lucide lucide-maximize2 lucide-maximize-2\\\"><polyline points=\\\"15 3 21 3 21 9\\\"></polyline><polyline points=\\\"9 21 3 21 3 15\\\"></polyline><line x1=\\\"21\\\" x2=\\\"14\\\" y1=\\\"3\\\" y2=\\\"10\\\"></line><line x1=\\\"3\\\" x2=\\\"10\\\" y1=\\\"21\\\" y2=\\\"14\\\"></line></svg></button></div></div></div></a><figcaption class=\\\"image-caption\\\">Orange: Monday, Blue: Sunday, Green: Saturday</figcaption></figure></div><p>Elastic does not allow invalid SLO targets like 0% or 100%. They do however allow ridiculously low numbers like 0.1 while blocking 0.0001:</p><div class=\\\"captioned-image-container\\\"><figure><a class=\\\"image-link image2\\\" target=\\\"_blank\\\" href=\\\"https://substackcdn.com/image/fetch/$s_!CImK!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F711d5e1a-52ca-438e-b63f-b4737a9b0eb2_581x116.png\\\" data-component-name=\\\"Image2ToDOM\\\"><div class=\\\"image2-inset\\\"><picture><source type=\\\"image/webp\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!CImK!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F711d5e1a-52ca-438e-b63f-b4737a9b0eb2_581x116.png 424w, https://substackcdn.com/image/fetch/$s_!CImK!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F711d5e1a-52ca-438e-b63f-b4737a9b0eb2_581x116.png 848w, https://substackcdn.com/image/fetch/$s_!CImK!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F711d5e1a-52ca-438e-b63f-b4737a9b0eb2_581x116.png 1272w, https://substackcdn.com/image/fetch/$s_!CImK!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F711d5e1a-52ca-438e-b63f-b4737a9b0eb2_581x116.png 1456w\\\" sizes=\\\"100vw\\\"><img src=\\\"https://substackcdn.com/image/fetch/$s_!CImK!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F711d5e1a-52ca-438e-b63f-b4737a9b0eb2_581x116.png\\\" width=\\\"581\\\" height=\\\"116\\\" data-attrs=\\\"{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/711d5e1a-52ca-438e-b63f-b4737a9b0eb2_581x116.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:116,&quot;width&quot;:581,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:8680,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}\\\" class=\\\"sizing-normal\\\" alt=\\\"\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!CImK!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F711d5e1a-52ca-438e-b63f-b4737a9b0eb2_581x116.png 424w, https://substackcdn.com/image/fetch/$s_!CImK!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F711d5e1a-52ca-438e-b63f-b4737a9b0eb2_581x116.png 848w, https://substackcdn.com/image/fetch/$s_!CImK!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F711d5e1a-52ca-438e-b63f-b4737a9b0eb2_581x116.png 1272w, https://substackcdn.com/image/fetch/$s_!CImK!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F711d5e1a-52ca-438e-b63f-b4737a9b0eb2_581x116.png 1456w\\\" sizes=\\\"100vw\\\" loading=\\\"lazy\\\"></picture><div></div></div></a></figure></div><p>Similar issue exists for the upper end of the spectrum where a SLO of 6-nines is forbidden:</p><div class=\\\"captioned-image-container\\\"><figure><a class=\\\"image-link image2\\\" target=\\\"_blank\\\" href=\\\"https://substackcdn.com/image/fetch/$s_!WUlu!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F992d9264-be1f-464a-b756-17404abe0684_581x116.png\\\" data-component-name=\\\"Image2ToDOM\\\"><div class=\\\"image2-inset\\\"><picture><source type=\\\"image/webp\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!WUlu!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F992d9264-be1f-464a-b756-17404abe0684_581x116.png 424w, https://substackcdn.com/image/fetch/$s_!WUlu!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F992d9264-be1f-464a-b756-17404abe0684_581x116.png 848w, https://substackcdn.com/image/fetch/$s_!WUlu!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F992d9264-be1f-464a-b756-17404abe0684_581x116.png 1272w, https://substackcdn.com/image/fetch/$s_!WUlu!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F992d9264-be1f-464a-b756-17404abe0684_581x116.png 1456w\\\" sizes=\\\"100vw\\\"><img src=\\\"https://substackcdn.com/image/fetch/$s_!WUlu!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F992d9264-be1f-464a-b756-17404abe0684_581x116.png\\\" width=\\\"581\\\" height=\\\"116\\\" data-attrs=\\\"{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/992d9264-be1f-464a-b756-17404abe0684_581x116.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:116,&quot;width&quot;:581,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:null,&quot;alt&quot;:&quot;&quot;,&quot;title&quot;:null,&quot;type&quot;:null,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}\\\" class=\\\"sizing-normal\\\" alt=\\\"\\\" title=\\\"\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!WUlu!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F992d9264-be1f-464a-b756-17404abe0684_581x116.png 424w, https://substackcdn.com/image/fetch/$s_!WUlu!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F992d9264-be1f-464a-b756-17404abe0684_581x116.png 848w, https://substackcdn.com/image/fetch/$s_!WUlu!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F992d9264-be1f-464a-b756-17404abe0684_581x116.png 1272w, https://substackcdn.com/image/fetch/$s_!WUlu!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F992d9264-be1f-464a-b756-17404abe0684_581x116.png 1456w\\\" sizes=\\\"100vw\\\" loading=\\\"lazy\\\"></picture><div></div></div></a></figure></div><p>Admittedly, 6-nines is not very common (and has a <a href=\\\"https://blog.alexewerlof.com/p/10x9\\\">high cost</a>) but I don\u2019t see a reason why the tool should get in your way if that\u2019s your SLO.</p><div class=\\\"digest-post-embed\\\" data-attrs=\\\"{&quot;nodeId&quot;:&quot;e68e5e4c-6cb5-4753-9538-5fad5de12587&quot;,&quot;caption&quot;:&quot;When setting SLOs (service level objectives) there\u2019s a rule of thumb that goes like this:&quot;,&quot;cta&quot;:&quot;Read full story&quot;,&quot;showBylines&quot;:true,&quot;showDescription&quot;:true,&quot;showImage&quot;:true,&quot;size&quot;:&quot;sm&quot;,&quot;isEditorNode&quot;:true,&quot;title&quot;:&quot;10x/9 Rule&quot;,&quot;publishedBylines&quot;:[{&quot;id&quot;:87732486,&quot;name&quot;:&quot;Alex Ewerl\u00F6f&quot;,&quot;bio&quot;:&quot;Writes about technical leadership, growth mindset, and system reliability engineering. Senior Staff Engineer, MSc Systems Engineering from KTH, Stockholmer, dad, amateur artist. Read more here: https://www.alexewerlof.com/who&quot;,&quot;photo_url&quot;:&quot;https://substackcdn.com/image/fetch/f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fbucketeer-e05bbc84-baa3-437e-9518-adb32be77984.s3.amazonaws.com%2Fpublic%2Fimages%2Fe2713990-da82-481b-b579-01a7aaa5b85b_560x560.jpeg&quot;,&quot;is_guest&quot;:false,&quot;bestseller_tier&quot;:null}],&quot;post_date&quot;:&quot;2023-12-01T05:30:17.586Z&quot;,&quot;cover_image&quot;:&quot;https://substackcdn.com/image/fetch/f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa1d1a58d-cfed-4818-9a2d-125174277f54_1051x577.png&quot;,&quot;cover_image_alt&quot;:null,&quot;canonical_url&quot;:&quot;https://blog.alexewerlof.com/p/10x9&quot;,&quot;section_name&quot;:&quot;Reliability Engineering&quot;,&quot;video_upload_id&quot;:null,&quot;id&quot;:139126336,&quot;type&quot;:&quot;newsletter&quot;,&quot;reaction_count&quot;:6,&quot;comment_count&quot;:0,&quot;publication_id&quot;:1002265,&quot;publication_name&quot;:&quot;Alex Ewerl\u00F6f Notes&quot;,&quot;publication_logo_url&quot;:&quot;https://substackcdn.com/image/fetch/$s_!_Ur2!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F8c58cb07-9341-402b-bcdb-9fa767c2cdac_500x500.png&quot;,&quot;belowTheFold&quot;:true,&quot;youtube_url&quot;:null,&quot;show_links&quot;:null,&quot;feed_url&quot;:null}\\\"></div><p>However, if their SLO implementation is limited to 3 fractional positions, that is a serious issue. Essentially you won\u2019t be able to implement SLOs like 99.1234% because it\u2019ll be truncated to 99.123%. I haven\u2019t tested that. If you know more, please comment down below.</p><p>After you create a SLO, the waiting spinner starts rotating for a long time. In my test, I waited about 30 seconds before the SLO was created which is by far the longest in this review.</p><p>When it succeeds, your brand new SLO gets a default dashboard.</p><p>The bottom part of the page is interesting where you can see the good and bad events in a stacked bar chart:</p><div class=\\\"captioned-image-container\\\"><figure><a class=\\\"image-link image2 is-viewable-img\\\" target=\\\"_blank\\\" href=\\\"https://substackcdn.com/image/fetch/$s_!ZwGv!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb8869951-20a9-4270-a71b-a8b07e246970_994x281.png\\\" data-component-name=\\\"Image2ToDOM\\\"><div class=\\\"image2-inset\\\"><picture><source type=\\\"image/webp\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!ZwGv!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb8869951-20a9-4270-a71b-a8b07e246970_994x281.png 424w, https://substackcdn.com/image/fetch/$s_!ZwGv!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb8869951-20a9-4270-a71b-a8b07e246970_994x281.png 848w, https://substackcdn.com/image/fetch/$s_!ZwGv!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb8869951-20a9-4270-a71b-a8b07e246970_994x281.png 1272w, https://substackcdn.com/image/fetch/$s_!ZwGv!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb8869951-20a9-4270-a71b-a8b07e246970_994x281.png 1456w\\\" sizes=\\\"100vw\\\"><img src=\\\"https://substackcdn.com/image/fetch/$s_!ZwGv!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb8869951-20a9-4270-a71b-a8b07e246970_994x281.png\\\" width=\\\"994\\\" height=\\\"281\\\" data-attrs=\\\"{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/b8869951-20a9-4270-a71b-a8b07e246970_994x281.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:281,&quot;width&quot;:994,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:28633,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}\\\" class=\\\"sizing-normal\\\" alt=\\\"\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!ZwGv!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb8869951-20a9-4270-a71b-a8b07e246970_994x281.png 424w, https://substackcdn.com/image/fetch/$s_!ZwGv!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb8869951-20a9-4270-a71b-a8b07e246970_994x281.png 848w, https://substackcdn.com/image/fetch/$s_!ZwGv!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb8869951-20a9-4270-a71b-a8b07e246970_994x281.png 1272w, https://substackcdn.com/image/fetch/$s_!ZwGv!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb8869951-20a9-4270-a71b-a8b07e246970_994x281.png 1456w\\\" sizes=\\\"100vw\\\" loading=\\\"lazy\\\"></picture><div class=\\\"image-link-expand\\\"><div class=\\\"pencraft pc-display-flex pc-gap-8 pc-reset\\\"><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container restack-image\\\"><svg aria-hidden=\\\"true\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 20 20\\\" fill=\\\"none\\\" stroke-width=\\\"1.5\\\" stroke=\\\"var(--color-fg-primary)\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><g><path d=\\\"M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882\\\"></path></g></svg></button><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container view-image\\\"><svg xmlns=\\\"http://www.w3.org/2000/svg\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 24 24\\\" fill=\\\"none\\\" stroke=\\\"currentColor\\\" stroke-width=\\\"2\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" class=\\\"lucide lucide-maximize2 lucide-maximize-2\\\"><polyline points=\\\"15 3 21 3 21 9\\\"></polyline><polyline points=\\\"9 21 3 21 3 15\\\"></polyline><line x1=\\\"21\\\" x2=\\\"14\\\" y1=\\\"3\\\" y2=\\\"10\\\"></line><line x1=\\\"3\\\" x2=\\\"10\\\" y1=\\\"21\\\" y2=\\\"14\\\"></line></svg></button></div></div></div></a></figure></div><p>You can also see the Burn Rate and Historical SLI (which I call SLS for <a href=\\\"https://blog.alexewerlof.com/p/sls\\\">Service Level Status</a>).</p><p>Elastic does not create alerts by default despite me setting a target for the SLO. This is a flaw they share with Datadog.</p><p>Without Alerting, there is no commitment towards the SLO. SLOs are important enough to nudge the user to create alerts in the initial SLO configuration screen.</p><p>Fortunately, creating an alert is just a click away (as mentioned in their <a href=\\\"https://www.elastic.co/guide/en/observability/current/slo-create.html\\\">SLO creation documentation</a>):</p><div class=\\\"captioned-image-container\\\"><figure><a class=\\\"image-link image2 is-viewable-img\\\" target=\\\"_blank\\\" href=\\\"https://substackcdn.com/image/fetch/$s_!bgGH!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fdc367740-84bf-422f-9a07-6bd91ca8f698_252x348.png\\\" data-component-name=\\\"Image2ToDOM\\\"><div class=\\\"image2-inset\\\"><picture><source type=\\\"image/webp\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!bgGH!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fdc367740-84bf-422f-9a07-6bd91ca8f698_252x348.png 424w, https://substackcdn.com/image/fetch/$s_!bgGH!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fdc367740-84bf-422f-9a07-6bd91ca8f698_252x348.png 848w, https://substackcdn.com/image/fetch/$s_!bgGH!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fdc367740-84bf-422f-9a07-6bd91ca8f698_252x348.png 1272w, https://substackcdn.com/image/fetch/$s_!bgGH!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fdc367740-84bf-422f-9a07-6bd91ca8f698_252x348.png 1456w\\\" sizes=\\\"100vw\\\"><img src=\\\"https://substackcdn.com/image/fetch/$s_!bgGH!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fdc367740-84bf-422f-9a07-6bd91ca8f698_252x348.png\\\" width=\\\"252\\\" height=\\\"348\\\" data-attrs=\\\"{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/dc367740-84bf-422f-9a07-6bd91ca8f698_252x348.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:348,&quot;width&quot;:252,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:18272,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}\\\" class=\\\"sizing-normal\\\" alt=\\\"\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!bgGH!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fdc367740-84bf-422f-9a07-6bd91ca8f698_252x348.png 424w, https://substackcdn.com/image/fetch/$s_!bgGH!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fdc367740-84bf-422f-9a07-6bd91ca8f698_252x348.png 848w, https://substackcdn.com/image/fetch/$s_!bgGH!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fdc367740-84bf-422f-9a07-6bd91ca8f698_252x348.png 1272w, https://substackcdn.com/image/fetch/$s_!bgGH!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fdc367740-84bf-422f-9a07-6bd91ca8f698_252x348.png 1456w\\\" sizes=\\\"100vw\\\" loading=\\\"lazy\\\"></picture><div class=\\\"image-link-expand\\\"><div class=\\\"pencraft pc-display-flex pc-gap-8 pc-reset\\\"><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container restack-image\\\"><svg aria-hidden=\\\"true\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 20 20\\\" fill=\\\"none\\\" stroke-width=\\\"1.5\\\" stroke=\\\"var(--color-fg-primary)\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><g><path d=\\\"M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882\\\"></path></g></svg></button><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container view-image\\\"><svg xmlns=\\\"http://www.w3.org/2000/svg\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 24 24\\\" fill=\\\"none\\\" stroke=\\\"currentColor\\\" stroke-width=\\\"2\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" class=\\\"lucide lucide-maximize2 lucide-maximize-2\\\"><polyline points=\\\"15 3 21 3 21 9\\\"></polyline><polyline points=\\\"9 21 3 21 3 15\\\"></polyline><line x1=\\\"21\\\" x2=\\\"14\\\" y1=\\\"3\\\" y2=\\\"10\\\"></line><line x1=\\\"3\\\" x2=\\\"10\\\" y1=\\\"21\\\" y2=\\\"14\\\"></line></svg></button></div></div></div></a></figure></div><p>The alerting setup for burn rate looks intimidating and complete:</p><div class=\\\"captioned-image-container\\\"><figure><a class=\\\"image-link image2 is-viewable-img\\\" target=\\\"_blank\\\" href=\\\"https://substackcdn.com/image/fetch/$s_!hn3D!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc630cbb0-2129-4367-a4e2-ae96d80d6e5f_592x976.png\\\" data-component-name=\\\"Image2ToDOM\\\"><div class=\\\"image2-inset\\\"><picture><source type=\\\"image/webp\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!hn3D!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc630cbb0-2129-4367-a4e2-ae96d80d6e5f_592x976.png 424w, https://substackcdn.com/image/fetch/$s_!hn3D!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc630cbb0-2129-4367-a4e2-ae96d80d6e5f_592x976.png 848w, https://substackcdn.com/image/fetch/$s_!hn3D!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc630cbb0-2129-4367-a4e2-ae96d80d6e5f_592x976.png 1272w, https://substackcdn.com/image/fetch/$s_!hn3D!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc630cbb0-2129-4367-a4e2-ae96d80d6e5f_592x976.png 1456w\\\" sizes=\\\"100vw\\\"><img src=\\\"https://substackcdn.com/image/fetch/$s_!hn3D!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc630cbb0-2129-4367-a4e2-ae96d80d6e5f_592x976.png\\\" width=\\\"592\\\" height=\\\"976\\\" data-attrs=\\\"{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/c630cbb0-2129-4367-a4e2-ae96d80d6e5f_592x976.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:976,&quot;width&quot;:592,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:106048,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}\\\" class=\\\"sizing-normal\\\" alt=\\\"\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!hn3D!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc630cbb0-2129-4367-a4e2-ae96d80d6e5f_592x976.png 424w, https://substackcdn.com/image/fetch/$s_!hn3D!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc630cbb0-2129-4367-a4e2-ae96d80d6e5f_592x976.png 848w, https://substackcdn.com/image/fetch/$s_!hn3D!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc630cbb0-2129-4367-a4e2-ae96d80d6e5f_592x976.png 1272w, https://substackcdn.com/image/fetch/$s_!hn3D!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc630cbb0-2129-4367-a4e2-ae96d80d6e5f_592x976.png 1456w\\\" sizes=\\\"100vw\\\" loading=\\\"lazy\\\"></picture><div class=\\\"image-link-expand\\\"><div class=\\\"pencraft pc-display-flex pc-gap-8 pc-reset\\\"><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container restack-image\\\"><svg aria-hidden=\\\"true\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 20 20\\\" fill=\\\"none\\\" stroke-width=\\\"1.5\\\" stroke=\\\"var(--color-fg-primary)\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><g><path d=\\\"M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882\\\"></path></g></svg></button><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container view-image\\\"><svg xmlns=\\\"http://www.w3.org/2000/svg\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 24 24\\\" fill=\\\"none\\\" stroke=\\\"currentColor\\\" stroke-width=\\\"2\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" class=\\\"lucide lucide-maximize2 lucide-maximize-2\\\"><polyline points=\\\"15 3 21 3 21 9\\\"></polyline><polyline points=\\\"9 21 3 21 3 15\\\"></polyline><line x1=\\\"21\\\" x2=\\\"14\\\" y1=\\\"3\\\" y2=\\\"10\\\"></line><line x1=\\\"3\\\" x2=\\\"10\\\" y1=\\\"21\\\" y2=\\\"14\\\"></line></svg></button></div></div></div></a></figure></div><p>It\u2019s a nice touch that Elastic prefills the multi-burn rate alerts with decent default values.</p><p>But once you look closer, you realize that the config for short lookback alert window is missing. This feature is important for reducing false alerts as pointed out in <a href=\\\"https://sre.google/workbook/alerting-on-slos/\\\">Google\u2019s SRE book</a>.</p><p>Elastic <a href=\\\"https://www.elastic.co/guide/en/observability/current/slo-burn-rate-alert.html\\\">SLO Alerting documentation</a> states:</p><blockquote><p>Your short lookback period is set automatically.</p></blockquote><p>Google recommends 1/12th of the long window and I\u2019m guessing that\u2019s what they\u2019re going for. Hard to tell. The docs are \uD83E\uDD10 on that.</p><p>I also really like that Elastic allows switching between Burn Rate and burn percentage with the flip of a button:</p><div class=\\\"captioned-image-container\\\"><figure><a class=\\\"image-link image2 is-viewable-img\\\" target=\\\"_blank\\\" href=\\\"https://substackcdn.com/image/fetch/$s_!PO_Y!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F51f5f290-4e87-4db4-975f-38efec2c25b7_592x431.png\\\" data-component-name=\\\"Image2ToDOM\\\"><div class=\\\"image2-inset\\\"><picture><source type=\\\"image/webp\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!PO_Y!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F51f5f290-4e87-4db4-975f-38efec2c25b7_592x431.png 424w, https://substackcdn.com/image/fetch/$s_!PO_Y!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F51f5f290-4e87-4db4-975f-38efec2c25b7_592x431.png 848w, https://substackcdn.com/image/fetch/$s_!PO_Y!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F51f5f290-4e87-4db4-975f-38efec2c25b7_592x431.png 1272w, https://substackcdn.com/image/fetch/$s_!PO_Y!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F51f5f290-4e87-4db4-975f-38efec2c25b7_592x431.png 1456w\\\" sizes=\\\"100vw\\\"><img src=\\\"https://substackcdn.com/image/fetch/$s_!PO_Y!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F51f5f290-4e87-4db4-975f-38efec2c25b7_592x431.png\\\" width=\\\"592\\\" height=\\\"431\\\" data-attrs=\\\"{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/51f5f290-4e87-4db4-975f-38efec2c25b7_592x431.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:431,&quot;width&quot;:592,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:66529,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}\\\" class=\\\"sizing-normal\\\" alt=\\\"\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!PO_Y!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F51f5f290-4e87-4db4-975f-38efec2c25b7_592x431.png 424w, https://substackcdn.com/image/fetch/$s_!PO_Y!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F51f5f290-4e87-4db4-975f-38efec2c25b7_592x431.png 848w, https://substackcdn.com/image/fetch/$s_!PO_Y!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F51f5f290-4e87-4db4-975f-38efec2c25b7_592x431.png 1272w, https://substackcdn.com/image/fetch/$s_!PO_Y!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F51f5f290-4e87-4db4-975f-38efec2c25b7_592x431.png 1456w\\\" sizes=\\\"100vw\\\" loading=\\\"lazy\\\"></picture><div class=\\\"image-link-expand\\\"><div class=\\\"pencraft pc-display-flex pc-gap-8 pc-reset\\\"><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container restack-image\\\"><svg aria-hidden=\\\"true\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 20 20\\\" fill=\\\"none\\\" stroke-width=\\\"1.5\\\" stroke=\\\"var(--color-fg-primary)\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><g><path d=\\\"M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882\\\"></path></g></svg></button><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container view-image\\\"><svg xmlns=\\\"http://www.w3.org/2000/svg\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 24 24\\\" fill=\\\"none\\\" stroke=\\\"currentColor\\\" stroke-width=\\\"2\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" class=\\\"lucide lucide-maximize2 lucide-maximize-2\\\"><polyline points=\\\"15 3 21 3 21 9\\\"></polyline><polyline points=\\\"9 21 3 21 3 15\\\"></polyline><line x1=\\\"21\\\" x2=\\\"14\\\" y1=\\\"3\\\" y2=\\\"10\\\"></line><line x1=\\\"3\\\" x2=\\\"10\\\" y1=\\\"21\\\" y2=\\\"14\\\"></line></svg></button></div></div></div></a></figure></div><p>However, for the life of me I cannot understand it. As you can see in <a href=\\\"https://slc.alexewerlof.com/\\\">SLC</a>, you need to set both the burn rate and error budget consumption percentage. Elastic seems to automatically set that value (as seen in the grey text).</p><div class=\\\"captioned-image-container\\\"><figure><a class=\\\"image-link image2 is-viewable-img\\\" target=\\\"_blank\\\" href=\\\"https://substackcdn.com/image/fetch/$s_!1lw8!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F14257feb-befb-4ffd-985f-0dcf9b7b6b7f_557x1001.png\\\" data-component-name=\\\"Image2ToDOM\\\"><div class=\\\"image2-inset\\\"><picture><source type=\\\"image/webp\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!1lw8!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F14257feb-befb-4ffd-985f-0dcf9b7b6b7f_557x1001.png 424w, https://substackcdn.com/image/fetch/$s_!1lw8!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F14257feb-befb-4ffd-985f-0dcf9b7b6b7f_557x1001.png 848w, https://substackcdn.com/image/fetch/$s_!1lw8!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F14257feb-befb-4ffd-985f-0dcf9b7b6b7f_557x1001.png 1272w, https://substackcdn.com/image/fetch/$s_!1lw8!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F14257feb-befb-4ffd-985f-0dcf9b7b6b7f_557x1001.png 1456w\\\" sizes=\\\"100vw\\\"><img src=\\\"https://substackcdn.com/image/fetch/$s_!1lw8!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F14257feb-befb-4ffd-985f-0dcf9b7b6b7f_557x1001.png\\\" width=\\\"557\\\" height=\\\"1001\\\" data-attrs=\\\"{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/14257feb-befb-4ffd-985f-0dcf9b7b6b7f_557x1001.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:1001,&quot;width&quot;:557,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:69278,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}\\\" class=\\\"sizing-normal\\\" alt=\\\"\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!1lw8!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F14257feb-befb-4ffd-985f-0dcf9b7b6b7f_557x1001.png 424w, https://substackcdn.com/image/fetch/$s_!1lw8!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F14257feb-befb-4ffd-985f-0dcf9b7b6b7f_557x1001.png 848w, https://substackcdn.com/image/fetch/$s_!1lw8!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F14257feb-befb-4ffd-985f-0dcf9b7b6b7f_557x1001.png 1272w, https://substackcdn.com/image/fetch/$s_!1lw8!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F14257feb-befb-4ffd-985f-0dcf9b7b6b7f_557x1001.png 1456w\\\" sizes=\\\"100vw\\\" loading=\\\"lazy\\\"></picture><div class=\\\"image-link-expand\\\"><div class=\\\"pencraft pc-display-flex pc-gap-8 pc-reset\\\"><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container restack-image\\\"><svg aria-hidden=\\\"true\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 20 20\\\" fill=\\\"none\\\" stroke-width=\\\"1.5\\\" stroke=\\\"var(--color-fg-primary)\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><g><path d=\\\"M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882\\\"></path></g></svg></button><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container view-image\\\"><svg xmlns=\\\"http://www.w3.org/2000/svg\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 24 24\\\" fill=\\\"none\\\" stroke=\\\"currentColor\\\" stroke-width=\\\"2\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" class=\\\"lucide lucide-maximize2 lucide-maximize-2\\\"><polyline points=\\\"15 3 21 3 21 9\\\"></polyline><polyline points=\\\"9 21 3 21 3 15\\\"></polyline><line x1=\\\"21\\\" x2=\\\"14\\\" y1=\\\"3\\\" y2=\\\"10\\\"></line><line x1=\\\"3\\\" x2=\\\"10\\\" y1=\\\"21\\\" y2=\\\"14\\\"></line></svg></button></div></div></div></a></figure></div><p>Like regular alerts, Elastic offers a wide range of notifications and actions when the SLO alert goes off.</p><h1>Datadog</h1><p>Datadog\u2019s Service Level feature is under <em>Service Mgmt</em> menu (which if you\u2019re wondering, stands for \u201CService Management\u201D in a world where the UX team wins the battle over UI designers): \uD83D\uDE01</p><div class=\\\"captioned-image-container\\\"><figure><a class=\\\"image-link image2 is-viewable-img\\\" target=\\\"_blank\\\" href=\\\"https://substackcdn.com/image/fetch/$s_!mqgo!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F415a7657-2856-412b-8eea-7975e4e4d0da_614x932.png\\\" data-component-name=\\\"Image2ToDOM\\\"><div class=\\\"image2-inset\\\"><picture><source type=\\\"image/webp\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!mqgo!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F415a7657-2856-412b-8eea-7975e4e4d0da_614x932.png 424w, https://substackcdn.com/image/fetch/$s_!mqgo!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F415a7657-2856-412b-8eea-7975e4e4d0da_614x932.png 848w, https://substackcdn.com/image/fetch/$s_!mqgo!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F415a7657-2856-412b-8eea-7975e4e4d0da_614x932.png 1272w, https://substackcdn.com/image/fetch/$s_!mqgo!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F415a7657-2856-412b-8eea-7975e4e4d0da_614x932.png 1456w\\\" sizes=\\\"100vw\\\"><img src=\\\"https://substackcdn.com/image/fetch/$s_!mqgo!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F415a7657-2856-412b-8eea-7975e4e4d0da_614x932.png\\\" width=\\\"614\\\" height=\\\"932\\\" data-attrs=\\\"{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/415a7657-2856-412b-8eea-7975e4e4d0da_614x932.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:932,&quot;width&quot;:614,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:158897,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}\\\" class=\\\"sizing-normal\\\" alt=\\\"\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!mqgo!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F415a7657-2856-412b-8eea-7975e4e4d0da_614x932.png 424w, https://substackcdn.com/image/fetch/$s_!mqgo!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F415a7657-2856-412b-8eea-7975e4e4d0da_614x932.png 848w, https://substackcdn.com/image/fetch/$s_!mqgo!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F415a7657-2856-412b-8eea-7975e4e4d0da_614x932.png 1272w, https://substackcdn.com/image/fetch/$s_!mqgo!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F415a7657-2856-412b-8eea-7975e4e4d0da_614x932.png 1456w\\\" sizes=\\\"100vw\\\" loading=\\\"lazy\\\"></picture><div class=\\\"image-link-expand\\\"><div class=\\\"pencraft pc-display-flex pc-gap-8 pc-reset\\\"><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container restack-image\\\"><svg aria-hidden=\\\"true\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 20 20\\\" fill=\\\"none\\\" stroke-width=\\\"1.5\\\" stroke=\\\"var(--color-fg-primary)\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><g><path d=\\\"M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882\\\"></path></g></svg></button><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container view-image\\\"><svg xmlns=\\\"http://www.w3.org/2000/svg\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 24 24\\\" fill=\\\"none\\\" stroke=\\\"currentColor\\\" stroke-width=\\\"2\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" class=\\\"lucide lucide-maximize2 lucide-maximize-2\\\"><polyline points=\\\"15 3 21 3 21 9\\\"></polyline><polyline points=\\\"9 21 3 21 3 15\\\"></polyline><line x1=\\\"21\\\" x2=\\\"14\\\" y1=\\\"3\\\" y2=\\\"10\\\"></line><line x1=\\\"3\\\" x2=\\\"10\\\" y1=\\\"21\\\" y2=\\\"14\\\"></line></svg></button></div></div></div></a></figure></div><p>Before digging into UI, I just want to call out their <a href=\\\"https://www.datadoghq.com/product/service-level-objectives/\\\">excellent</a> <a href=\\\"https://www.datadoghq.com/blog/establishing-service-level-objectives/\\\">documentation</a> on the topic completed with <a href=\\\"https://www.datadoghq.com/ebook/the-telegraph-slis-slos/\\\">an ebook</a>.</p><p>Just like Elastic, Datadog uses a single 3-step screen for setting the SLO:</p><div class=\\\"captioned-image-container\\\"><figure><a class=\\\"image-link image2 is-viewable-img\\\" target=\\\"_blank\\\" href=\\\"https://substackcdn.com/image/fetch/$s_!K6yc!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9e7fc218-e007-4495-af34-ad0b1e5cfac7_1348x1215.png\\\" data-component-name=\\\"Image2ToDOM\\\"><div class=\\\"image2-inset\\\"><picture><source type=\\\"image/webp\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!K6yc!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9e7fc218-e007-4495-af34-ad0b1e5cfac7_1348x1215.png 424w, https://substackcdn.com/image/fetch/$s_!K6yc!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9e7fc218-e007-4495-af34-ad0b1e5cfac7_1348x1215.png 848w, https://substackcdn.com/image/fetch/$s_!K6yc!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9e7fc218-e007-4495-af34-ad0b1e5cfac7_1348x1215.png 1272w, https://substackcdn.com/image/fetch/$s_!K6yc!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9e7fc218-e007-4495-af34-ad0b1e5cfac7_1348x1215.png 1456w\\\" sizes=\\\"100vw\\\"><img src=\\\"https://substackcdn.com/image/fetch/$s_!K6yc!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9e7fc218-e007-4495-af34-ad0b1e5cfac7_1348x1215.png\\\" width=\\\"1348\\\" height=\\\"1215\\\" data-attrs=\\\"{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/9e7fc218-e007-4495-af34-ad0b1e5cfac7_1348x1215.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:1215,&quot;width&quot;:1348,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:126394,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}\\\" class=\\\"sizing-normal\\\" alt=\\\"\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!K6yc!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9e7fc218-e007-4495-af34-ad0b1e5cfac7_1348x1215.png 424w, https://substackcdn.com/image/fetch/$s_!K6yc!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9e7fc218-e007-4495-af34-ad0b1e5cfac7_1348x1215.png 848w, https://substackcdn.com/image/fetch/$s_!K6yc!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9e7fc218-e007-4495-af34-ad0b1e5cfac7_1348x1215.png 1272w, https://substackcdn.com/image/fetch/$s_!K6yc!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9e7fc218-e007-4495-af34-ad0b1e5cfac7_1348x1215.png 1456w\\\" sizes=\\\"100vw\\\" loading=\\\"lazy\\\"></picture><div class=\\\"image-link-expand\\\"><div class=\\\"pencraft pc-display-flex pc-gap-8 pc-reset\\\"><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container restack-image\\\"><svg aria-hidden=\\\"true\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 20 20\\\" fill=\\\"none\\\" stroke-width=\\\"1.5\\\" stroke=\\\"var(--color-fg-primary)\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><g><path d=\\\"M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882\\\"></path></g></svg></button><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container view-image\\\"><svg xmlns=\\\"http://www.w3.org/2000/svg\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 24 24\\\" fill=\\\"none\\\" stroke=\\\"currentColor\\\" stroke-width=\\\"2\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" class=\\\"lucide lucide-maximize2 lucide-maximize-2\\\"><polyline points=\\\"15 3 21 3 21 9\\\"></polyline><polyline points=\\\"9 21 3 21 3 15\\\"></polyline><line x1=\\\"21\\\" x2=\\\"14\\\" y1=\\\"3\\\" y2=\\\"10\\\"></line><line x1=\\\"3\\\" x2=\\\"10\\\" y1=\\\"21\\\" y2=\\\"14\\\"></line></svg></button></div></div></div></a></figure></div><p>If I recall correctly, Datadog had the SLO feature way ahead of the pack whereas Elastic recently introduced it. So it\u2019s up to you to guess who has copied whom. I mean, one of them could pick a different style for the 3 step numbering?</p><div class=\\\"captioned-image-container\\\"><figure><a class=\\\"image-link image2 is-viewable-img\\\" target=\\\"_blank\\\" href=\\\"https://substackcdn.com/image/fetch/$s_!aXrn!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F143a4712-6d68-46d8-9ad8-6ceb3f33c22c_787x696.png\\\" data-component-name=\\\"Image2ToDOM\\\"><div class=\\\"image2-inset\\\"><picture><source type=\\\"image/webp\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!aXrn!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F143a4712-6d68-46d8-9ad8-6ceb3f33c22c_787x696.png 424w, https://substackcdn.com/image/fetch/$s_!aXrn!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F143a4712-6d68-46d8-9ad8-6ceb3f33c22c_787x696.png 848w, https://substackcdn.com/image/fetch/$s_!aXrn!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F143a4712-6d68-46d8-9ad8-6ceb3f33c22c_787x696.png 1272w, https://substackcdn.com/image/fetch/$s_!aXrn!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F143a4712-6d68-46d8-9ad8-6ceb3f33c22c_787x696.png 1456w\\\" sizes=\\\"100vw\\\"><img src=\\\"https://substackcdn.com/image/fetch/$s_!aXrn!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F143a4712-6d68-46d8-9ad8-6ceb3f33c22c_787x696.png\\\" width=\\\"787\\\" height=\\\"696\\\" data-attrs=\\\"{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/143a4712-6d68-46d8-9ad8-6ceb3f33c22c_787x696.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:696,&quot;width&quot;:787,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:51473,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}\\\" class=\\\"sizing-normal\\\" alt=\\\"\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!aXrn!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F143a4712-6d68-46d8-9ad8-6ceb3f33c22c_787x696.png 424w, https://substackcdn.com/image/fetch/$s_!aXrn!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F143a4712-6d68-46d8-9ad8-6ceb3f33c22c_787x696.png 848w, https://substackcdn.com/image/fetch/$s_!aXrn!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F143a4712-6d68-46d8-9ad8-6ceb3f33c22c_787x696.png 1272w, https://substackcdn.com/image/fetch/$s_!aXrn!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F143a4712-6d68-46d8-9ad8-6ceb3f33c22c_787x696.png 1456w\\\" sizes=\\\"100vw\\\" loading=\\\"lazy\\\"></picture><div class=\\\"image-link-expand\\\"><div class=\\\"pencraft pc-display-flex pc-gap-8 pc-reset\\\"><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container restack-image\\\"><svg aria-hidden=\\\"true\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 20 20\\\" fill=\\\"none\\\" stroke-width=\\\"1.5\\\" stroke=\\\"var(--color-fg-primary)\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><g><path d=\\\"M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882\\\"></path></g></svg></button><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container view-image\\\"><svg xmlns=\\\"http://www.w3.org/2000/svg\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 24 24\\\" fill=\\\"none\\\" stroke=\\\"currentColor\\\" stroke-width=\\\"2\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" class=\\\"lucide lucide-maximize2 lucide-maximize-2\\\"><polyline points=\\\"15 3 21 3 21 9\\\"></polyline><polyline points=\\\"9 21 3 21 3 15\\\"></polyline><line x1=\\\"21\\\" x2=\\\"14\\\" y1=\\\"3\\\" y2=\\\"10\\\"></line><line x1=\\\"3\\\" x2=\\\"10\\\" y1=\\\"21\\\" y2=\\\"14\\\"></line></svg></button></div></div></div></a><figcaption class=\\\"image-caption\\\">One of these is a copycat, can you tell which one? \uD83D\uDE01</figcaption></figure></div><p>SLI can either be <a href=\\\"https://blog.alexewerlof.com/p/sli\\\">time-based or event-based</a>. Datadog offers two time-based SLIs:</p><ul><li><p>By monitor uptime: requires having set up a <a href=\\\"https://docs.datadoghq.com/getting_started/monitors/\\\">monitor</a> (an Alerting Rule)</p></li><li><p>By time slices</p></li></ul><p>When it comes to evaluating the monitor (Datadog lingo for Alerting rules), it has the same limited choices as Elastic: 7, 30, and 90.</p><div class=\\\"captioned-image-container\\\"><figure><a class=\\\"image-link image2\\\" target=\\\"_blank\\\" href=\\\"https://substackcdn.com/image/fetch/$s_!6en2!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fd5303fcf-7d23-4ed9-840f-725a04ab28a2_513x194.png\\\" data-component-name=\\\"Image2ToDOM\\\"><div class=\\\"image2-inset\\\"><picture><source type=\\\"image/webp\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!6en2!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fd5303fcf-7d23-4ed9-840f-725a04ab28a2_513x194.png 424w, https://substackcdn.com/image/fetch/$s_!6en2!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fd5303fcf-7d23-4ed9-840f-725a04ab28a2_513x194.png 848w, https://substackcdn.com/image/fetch/$s_!6en2!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fd5303fcf-7d23-4ed9-840f-725a04ab28a2_513x194.png 1272w, https://substackcdn.com/image/fetch/$s_!6en2!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fd5303fcf-7d23-4ed9-840f-725a04ab28a2_513x194.png 1456w\\\" sizes=\\\"100vw\\\"><img src=\\\"https://substackcdn.com/image/fetch/$s_!6en2!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fd5303fcf-7d23-4ed9-840f-725a04ab28a2_513x194.png\\\" width=\\\"513\\\" height=\\\"194\\\" data-attrs=\\\"{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/d5303fcf-7d23-4ed9-840f-725a04ab28a2_513x194.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:194,&quot;width&quot;:513,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:19973,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}\\\" class=\\\"sizing-normal\\\" alt=\\\"\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!6en2!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fd5303fcf-7d23-4ed9-840f-725a04ab28a2_513x194.png 424w, https://substackcdn.com/image/fetch/$s_!6en2!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fd5303fcf-7d23-4ed9-840f-725a04ab28a2_513x194.png 848w, https://substackcdn.com/image/fetch/$s_!6en2!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fd5303fcf-7d23-4ed9-840f-725a04ab28a2_513x194.png 1272w, https://substackcdn.com/image/fetch/$s_!6en2!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fd5303fcf-7d23-4ed9-840f-725a04ab28a2_513x194.png 1456w\\\" sizes=\\\"100vw\\\" loading=\\\"lazy\\\"></picture><div></div></div></a></figure></div><p>I do like the live preview of the monitor uptime however (Elastic has this feature too):</p><div class=\\\"captioned-image-container\\\"><figure><a class=\\\"image-link image2\\\" target=\\\"_blank\\\" href=\\\"https://substackcdn.com/image/fetch/$s_!9_T9!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F2f8e2227-8b6e-459a-8151-f89f47a2b776_1429x215.png\\\" data-component-name=\\\"Image2ToDOM\\\"><div class=\\\"image2-inset\\\"><picture><source type=\\\"image/webp\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!9_T9!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F2f8e2227-8b6e-459a-8151-f89f47a2b776_1429x215.png 424w, https://substackcdn.com/image/fetch/$s_!9_T9!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F2f8e2227-8b6e-459a-8151-f89f47a2b776_1429x215.png 848w, https://substackcdn.com/image/fetch/$s_!9_T9!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F2f8e2227-8b6e-459a-8151-f89f47a2b776_1429x215.png 1272w, https://substackcdn.com/image/fetch/$s_!9_T9!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F2f8e2227-8b6e-459a-8151-f89f47a2b776_1429x215.png 1456w\\\" sizes=\\\"100vw\\\"><img src=\\\"https://substackcdn.com/image/fetch/$s_!9_T9!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F2f8e2227-8b6e-459a-8151-f89f47a2b776_1429x215.png\\\" width=\\\"1429\\\" height=\\\"215\\\" data-attrs=\\\"{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/2f8e2227-8b6e-459a-8151-f89f47a2b776_1429x215.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:215,&quot;width&quot;:1429,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:44815,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}\\\" class=\\\"sizing-normal\\\" alt=\\\"\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!9_T9!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F2f8e2227-8b6e-459a-8151-f89f47a2b776_1429x215.png 424w, https://substackcdn.com/image/fetch/$s_!9_T9!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F2f8e2227-8b6e-459a-8151-f89f47a2b776_1429x215.png 848w, https://substackcdn.com/image/fetch/$s_!9_T9!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F2f8e2227-8b6e-459a-8151-f89f47a2b776_1429x215.png 1272w, https://substackcdn.com/image/fetch/$s_!9_T9!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F2f8e2227-8b6e-459a-8151-f89f47a2b776_1429x215.png 1456w\\\" sizes=\\\"100vw\\\" loading=\\\"lazy\\\"></picture><div></div></div></a></figure></div><p>For event-based SLIs (or \u201CBy Count\u201D as Datadog calls it), you can choose two metrics for Good/Total Events:</p><div class=\\\"captioned-image-container\\\"><figure><a class=\\\"image-link image2 is-viewable-img\\\" target=\\\"_blank\\\" href=\\\"https://substackcdn.com/image/fetch/$s_!fCz3!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F11f19ccb-d2ab-44e4-9799-090b52805438_1415x601.png\\\" data-component-name=\\\"Image2ToDOM\\\"><div class=\\\"image2-inset\\\"><picture><source type=\\\"image/webp\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!fCz3!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F11f19ccb-d2ab-44e4-9799-090b52805438_1415x601.png 424w, https://substackcdn.com/image/fetch/$s_!fCz3!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F11f19ccb-d2ab-44e4-9799-090b52805438_1415x601.png 848w, https://substackcdn.com/image/fetch/$s_!fCz3!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F11f19ccb-d2ab-44e4-9799-090b52805438_1415x601.png 1272w, https://substackcdn.com/image/fetch/$s_!fCz3!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F11f19ccb-d2ab-44e4-9799-090b52805438_1415x601.png 1456w\\\" sizes=\\\"100vw\\\"><img src=\\\"https://substackcdn.com/image/fetch/$s_!fCz3!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F11f19ccb-d2ab-44e4-9799-090b52805438_1415x601.png\\\" width=\\\"1415\\\" height=\\\"601\\\" data-attrs=\\\"{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/11f19ccb-d2ab-44e4-9799-090b52805438_1415x601.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:601,&quot;width&quot;:1415,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:104202,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}\\\" class=\\\"sizing-normal\\\" alt=\\\"\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!fCz3!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F11f19ccb-d2ab-44e4-9799-090b52805438_1415x601.png 424w, https://substackcdn.com/image/fetch/$s_!fCz3!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F11f19ccb-d2ab-44e4-9799-090b52805438_1415x601.png 848w, https://substackcdn.com/image/fetch/$s_!fCz3!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F11f19ccb-d2ab-44e4-9799-090b52805438_1415x601.png 1272w, https://substackcdn.com/image/fetch/$s_!fCz3!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F11f19ccb-d2ab-44e4-9799-090b52805438_1415x601.png 1456w\\\" sizes=\\\"100vw\\\" loading=\\\"lazy\\\"></picture><div class=\\\"image-link-expand\\\"><div class=\\\"pencraft pc-display-flex pc-gap-8 pc-reset\\\"><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container restack-image\\\"><svg aria-hidden=\\\"true\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 20 20\\\" fill=\\\"none\\\" stroke-width=\\\"1.5\\\" stroke=\\\"var(--color-fg-primary)\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><g><path d=\\\"M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882\\\"></path></g></svg></button><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container view-image\\\"><svg xmlns=\\\"http://www.w3.org/2000/svg\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 24 24\\\" fill=\\\"none\\\" stroke=\\\"currentColor\\\" stroke-width=\\\"2\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" class=\\\"lucide lucide-maximize2 lucide-maximize-2\\\"><polyline points=\\\"15 3 21 3 21 9\\\"></polyline><polyline points=\\\"9 21 3 21 3 15\\\"></polyline><line x1=\\\"21\\\" x2=\\\"14\\\" y1=\\\"3\\\" y2=\\\"10\\\"></line><line x1=\\\"3\\\" x2=\\\"10\\\" y1=\\\"21\\\" y2=\\\"14\\\"></line></svg></button></div></div></div></a></figure></div><p>This is a <a href=\\\"https://blog.alexewerlof.com/p/sli-heterogeneous-vs-homogeneous\\\">heterogeneous SLI</a> (when the two metrics aren\u2019t tightly coupled). Heterogeneous SLIs are easier to implement in an already existing observability platform\u2014\u201Djust give me 2 metrics\u201D.</p><p>But in practice, they can be hard to reason about as clearly demonstrated with this funny error message:</p><div class=\\\"captioned-image-container\\\"><figure><a class=\\\"image-link image2\\\" target=\\\"_blank\\\" href=\\\"https://substackcdn.com/image/fetch/$s_!3zf1!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F604dee2c-cd7a-477d-a1a1-0c9c9a471d87_621x161.png\\\" data-component-name=\\\"Image2ToDOM\\\"><div class=\\\"image2-inset\\\"><picture><source type=\\\"image/webp\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!3zf1!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F604dee2c-cd7a-477d-a1a1-0c9c9a471d87_621x161.png 424w, https://substackcdn.com/image/fetch/$s_!3zf1!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F604dee2c-cd7a-477d-a1a1-0c9c9a471d87_621x161.png 848w, https://substackcdn.com/image/fetch/$s_!3zf1!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F604dee2c-cd7a-477d-a1a1-0c9c9a471d87_621x161.png 1272w, https://substackcdn.com/image/fetch/$s_!3zf1!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F604dee2c-cd7a-477d-a1a1-0c9c9a471d87_621x161.png 1456w\\\" sizes=\\\"100vw\\\"><img src=\\\"https://substackcdn.com/image/fetch/$s_!3zf1!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F604dee2c-cd7a-477d-a1a1-0c9c9a471d87_621x161.png\\\" width=\\\"621\\\" height=\\\"161\\\" data-attrs=\\\"{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/604dee2c-cd7a-477d-a1a1-0c9c9a471d87_621x161.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:161,&quot;width&quot;:621,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:18362,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}\\\" class=\\\"sizing-normal\\\" alt=\\\"\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!3zf1!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F604dee2c-cd7a-477d-a1a1-0c9c9a471d87_621x161.png 424w, https://substackcdn.com/image/fetch/$s_!3zf1!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F604dee2c-cd7a-477d-a1a1-0c9c9a471d87_621x161.png 848w, https://substackcdn.com/image/fetch/$s_!3zf1!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F604dee2c-cd7a-477d-a1a1-0c9c9a471d87_621x161.png 1272w, https://substackcdn.com/image/fetch/$s_!3zf1!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F604dee2c-cd7a-477d-a1a1-0c9c9a471d87_621x161.png 1456w\\\" sizes=\\\"100vw\\\" loading=\\\"lazy\\\"></picture><div></div></div></a></figure></div><p>Personally, I prefer the <a href=\\\"https://blog.alexewerlof.com/p/sli-heterogeneous-vs-homogeneous\\\">homogeneous SLIs</a> where there is one metric that can be processed to identify good events.</p><p>Even though you can pick Good/Total, the live preview shows Good/Bad:</p><div class=\\\"captioned-image-container\\\"><figure><a class=\\\"image-link image2 is-viewable-img\\\" target=\\\"_blank\\\" href=\\\"https://substackcdn.com/image/fetch/$s_!xmm9!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F99049844-7ad3-45d0-a976-3fcc814aa864_1406x590.png\\\" data-component-name=\\\"Image2ToDOM\\\"><div class=\\\"image2-inset\\\"><picture><source type=\\\"image/webp\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!xmm9!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F99049844-7ad3-45d0-a976-3fcc814aa864_1406x590.png 424w, https://substackcdn.com/image/fetch/$s_!xmm9!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F99049844-7ad3-45d0-a976-3fcc814aa864_1406x590.png 848w, https://substackcdn.com/image/fetch/$s_!xmm9!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F99049844-7ad3-45d0-a976-3fcc814aa864_1406x590.png 1272w, https://substackcdn.com/image/fetch/$s_!xmm9!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F99049844-7ad3-45d0-a976-3fcc814aa864_1406x590.png 1456w\\\" sizes=\\\"100vw\\\"><img src=\\\"https://substackcdn.com/image/fetch/$s_!xmm9!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F99049844-7ad3-45d0-a976-3fcc814aa864_1406x590.png\\\" width=\\\"1406\\\" height=\\\"590\\\" data-attrs=\\\"{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/99049844-7ad3-45d0-a976-3fcc814aa864_1406x590.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:590,&quot;width&quot;:1406,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:101480,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}\\\" class=\\\"sizing-normal\\\" alt=\\\"\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!xmm9!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F99049844-7ad3-45d0-a976-3fcc814aa864_1406x590.png 424w, https://substackcdn.com/image/fetch/$s_!xmm9!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F99049844-7ad3-45d0-a976-3fcc814aa864_1406x590.png 848w, https://substackcdn.com/image/fetch/$s_!xmm9!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F99049844-7ad3-45d0-a976-3fcc814aa864_1406x590.png 1272w, https://substackcdn.com/image/fetch/$s_!xmm9!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F99049844-7ad3-45d0-a976-3fcc814aa864_1406x590.png 1456w\\\" sizes=\\\"100vw\\\" loading=\\\"lazy\\\"></picture><div class=\\\"image-link-expand\\\"><div class=\\\"pencraft pc-display-flex pc-gap-8 pc-reset\\\"><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container restack-image\\\"><svg aria-hidden=\\\"true\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 20 20\\\" fill=\\\"none\\\" stroke-width=\\\"1.5\\\" stroke=\\\"var(--color-fg-primary)\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><g><path d=\\\"M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882\\\"></path></g></svg></button><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container view-image\\\"><svg xmlns=\\\"http://www.w3.org/2000/svg\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 24 24\\\" fill=\\\"none\\\" stroke=\\\"currentColor\\\" stroke-width=\\\"2\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" class=\\\"lucide lucide-maximize2 lucide-maximize-2\\\"><polyline points=\\\"15 3 21 3 21 9\\\"></polyline><polyline points=\\\"9 21 3 21 3 15\\\"></polyline><line x1=\\\"21\\\" x2=\\\"14\\\" y1=\\\"3\\\" y2=\\\"10\\\"></line><line x1=\\\"3\\\" x2=\\\"10\\\" y1=\\\"21\\\" y2=\\\"14\\\"></line></svg></button></div></div></div></a></figure></div><p>Datadog doesn\u2019t allow invalid SLOs like 0% or 100%:</p><div class=\\\"captioned-image-container\\\"><figure><a class=\\\"image-link image2\\\" target=\\\"_blank\\\" href=\\\"https://substackcdn.com/image/fetch/$s_!mmWt!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb8d38ae0-0112-4a1a-8d2a-ef4e80aa2558_702x93.png\\\" data-component-name=\\\"Image2ToDOM\\\"><div class=\\\"image2-inset\\\"><picture><source type=\\\"image/webp\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!mmWt!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb8d38ae0-0112-4a1a-8d2a-ef4e80aa2558_702x93.png 424w, https://substackcdn.com/image/fetch/$s_!mmWt!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb8d38ae0-0112-4a1a-8d2a-ef4e80aa2558_702x93.png 848w, https://substackcdn.com/image/fetch/$s_!mmWt!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb8d38ae0-0112-4a1a-8d2a-ef4e80aa2558_702x93.png 1272w, https://substackcdn.com/image/fetch/$s_!mmWt!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb8d38ae0-0112-4a1a-8d2a-ef4e80aa2558_702x93.png 1456w\\\" sizes=\\\"100vw\\\"><img src=\\\"https://substackcdn.com/image/fetch/$s_!mmWt!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb8d38ae0-0112-4a1a-8d2a-ef4e80aa2558_702x93.png\\\" width=\\\"702\\\" height=\\\"93\\\" data-attrs=\\\"{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/b8d38ae0-0112-4a1a-8d2a-ef4e80aa2558_702x93.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:93,&quot;width&quot;:702,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:16125,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}\\\" class=\\\"sizing-normal\\\" alt=\\\"\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!mmWt!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb8d38ae0-0112-4a1a-8d2a-ef4e80aa2558_702x93.png 424w, https://substackcdn.com/image/fetch/$s_!mmWt!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb8d38ae0-0112-4a1a-8d2a-ef4e80aa2558_702x93.png 848w, https://substackcdn.com/image/fetch/$s_!mmWt!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb8d38ae0-0112-4a1a-8d2a-ef4e80aa2558_702x93.png 1272w, https://substackcdn.com/image/fetch/$s_!mmWt!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb8d38ae0-0112-4a1a-8d2a-ef4e80aa2558_702x93.png 1456w\\\" sizes=\\\"100vw\\\" loading=\\\"lazy\\\"></picture><div></div></div></a></figure></div><div class=\\\"captioned-image-container\\\"><figure><a class=\\\"image-link image2\\\" target=\\\"_blank\\\" href=\\\"https://substackcdn.com/image/fetch/$s_!iTzQ!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F68c0f614-d9f6-47fa-a323-660dbf940b80_702x93.png\\\" data-component-name=\\\"Image2ToDOM\\\"><div class=\\\"image2-inset\\\"><picture><source type=\\\"image/webp\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!iTzQ!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F68c0f614-d9f6-47fa-a323-660dbf940b80_702x93.png 424w, https://substackcdn.com/image/fetch/$s_!iTzQ!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F68c0f614-d9f6-47fa-a323-660dbf940b80_702x93.png 848w, https://substackcdn.com/image/fetch/$s_!iTzQ!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F68c0f614-d9f6-47fa-a323-660dbf940b80_702x93.png 1272w, https://substackcdn.com/image/fetch/$s_!iTzQ!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F68c0f614-d9f6-47fa-a323-660dbf940b80_702x93.png 1456w\\\" sizes=\\\"100vw\\\"><img src=\\\"https://substackcdn.com/image/fetch/$s_!iTzQ!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F68c0f614-d9f6-47fa-a323-660dbf940b80_702x93.png\\\" width=\\\"702\\\" height=\\\"93\\\" data-attrs=\\\"{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/68c0f614-d9f6-47fa-a323-660dbf940b80_702x93.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:93,&quot;width&quot;:702,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:15992,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}\\\" class=\\\"sizing-normal\\\" alt=\\\"\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!iTzQ!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F68c0f614-d9f6-47fa-a323-660dbf940b80_702x93.png 424w, https://substackcdn.com/image/fetch/$s_!iTzQ!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F68c0f614-d9f6-47fa-a323-660dbf940b80_702x93.png 848w, https://substackcdn.com/image/fetch/$s_!iTzQ!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F68c0f614-d9f6-47fa-a323-660dbf940b80_702x93.png 1272w, https://substackcdn.com/image/fetch/$s_!iTzQ!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F68c0f614-d9f6-47fa-a323-660dbf940b80_702x93.png 1456w\\\" sizes=\\\"100vw\\\" loading=\\\"lazy\\\"></picture><div></div></div></a></figure></div><p>For the time-based SLIs, I appreciate the simplicity and control in Datadog\u2019s UI for choosing the <a href=\\\"https://blog.alexewerlof.com/p/sli-good\\\">boundaries of good</a>:</p><div class=\\\"captioned-image-container\\\"><figure><a class=\\\"image-link image2 is-viewable-img\\\" target=\\\"_blank\\\" href=\\\"https://substackcdn.com/image/fetch/$s_!7pHu!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6e272573-7cd9-4761-b16c-559db2e65681_1426x612.png\\\" data-component-name=\\\"Image2ToDOM\\\"><div class=\\\"image2-inset\\\"><picture><source type=\\\"image/webp\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!7pHu!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6e272573-7cd9-4761-b16c-559db2e65681_1426x612.png 424w, https://substackcdn.com/image/fetch/$s_!7pHu!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6e272573-7cd9-4761-b16c-559db2e65681_1426x612.png 848w, https://substackcdn.com/image/fetch/$s_!7pHu!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6e272573-7cd9-4761-b16c-559db2e65681_1426x612.png 1272w, https://substackcdn.com/image/fetch/$s_!7pHu!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6e272573-7cd9-4761-b16c-559db2e65681_1426x612.png 1456w\\\" sizes=\\\"100vw\\\"><img src=\\\"https://substackcdn.com/image/fetch/$s_!7pHu!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6e272573-7cd9-4761-b16c-559db2e65681_1426x612.png\\\" width=\\\"1426\\\" height=\\\"612\\\" data-attrs=\\\"{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/6e272573-7cd9-4761-b16c-559db2e65681_1426x612.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:612,&quot;width&quot;:1426,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:100303,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}\\\" class=\\\"sizing-normal\\\" alt=\\\"\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!7pHu!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6e272573-7cd9-4761-b16c-559db2e65681_1426x612.png 424w, https://substackcdn.com/image/fetch/$s_!7pHu!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6e272573-7cd9-4761-b16c-559db2e65681_1426x612.png 848w, https://substackcdn.com/image/fetch/$s_!7pHu!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6e272573-7cd9-4761-b16c-559db2e65681_1426x612.png 1272w, https://substackcdn.com/image/fetch/$s_!7pHu!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6e272573-7cd9-4761-b16c-559db2e65681_1426x612.png 1456w\\\" sizes=\\\"100vw\\\" loading=\\\"lazy\\\"></picture><div class=\\\"image-link-expand\\\"><div class=\\\"pencraft pc-display-flex pc-gap-8 pc-reset\\\"><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container restack-image\\\"><svg aria-hidden=\\\"true\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 20 20\\\" fill=\\\"none\\\" stroke-width=\\\"1.5\\\" stroke=\\\"var(--color-fg-primary)\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><g><path d=\\\"M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882\\\"></path></g></svg></button><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container view-image\\\"><svg xmlns=\\\"http://www.w3.org/2000/svg\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 24 24\\\" fill=\\\"none\\\" stroke=\\\"currentColor\\\" stroke-width=\\\"2\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" class=\\\"lucide lucide-maximize2 lucide-maximize-2\\\"><polyline points=\\\"15 3 21 3 21 9\\\"></polyline><polyline points=\\\"9 21 3 21 3 15\\\"></polyline><line x1=\\\"21\\\" x2=\\\"14\\\" y1=\\\"3\\\" y2=\\\"10\\\"></line><line x1=\\\"3\\\" x2=\\\"10\\\" y1=\\\"21\\\" y2=\\\"14\\\"></line></svg></button></div></div></div></a></figure></div><p>There is more control and settings that I can understand, yet the UI is simple enough that I think I can understand if I need to!</p><p>I also like their <em>Warning Threshold</em> which fits nicely with how Alerting/Monitoring is done in the rest of the Datadog platform.</p><p>Although it can lead to alert fatigue. Done right you wouldn't need warnings because of how <a href=\\\"https://sre.google/workbook/alerting-on-slos/\\\">Google cleverly uses long window and short window</a>. Fortunately warnings is an opt-in feature in Datadog.</p><p>Once you create the SLO, you\u2019re presented with a very well thought through dashboard showing Error Budget Burndown, Burn Rate and the color coded status:</p><div class=\\\"captioned-image-container\\\"><figure><a class=\\\"image-link image2 is-viewable-img\\\" target=\\\"_blank\\\" href=\\\"https://substackcdn.com/image/fetch/$s_!T4xC!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F89b6b26c-dbe4-4ba9-a331-d35a22e2628e_1020x1180.png\\\" data-component-name=\\\"Image2ToDOM\\\"><div class=\\\"image2-inset\\\"><picture><source type=\\\"image/webp\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!T4xC!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F89b6b26c-dbe4-4ba9-a331-d35a22e2628e_1020x1180.png 424w, https://substackcdn.com/image/fetch/$s_!T4xC!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F89b6b26c-dbe4-4ba9-a331-d35a22e2628e_1020x1180.png 848w, https://substackcdn.com/image/fetch/$s_!T4xC!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F89b6b26c-dbe4-4ba9-a331-d35a22e2628e_1020x1180.png 1272w, https://substackcdn.com/image/fetch/$s_!T4xC!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F89b6b26c-dbe4-4ba9-a331-d35a22e2628e_1020x1180.png 1456w\\\" sizes=\\\"100vw\\\"><img src=\\\"https://substackcdn.com/image/fetch/$s_!T4xC!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F89b6b26c-dbe4-4ba9-a331-d35a22e2628e_1020x1180.png\\\" width=\\\"1020\\\" height=\\\"1180\\\" data-attrs=\\\"{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/89b6b26c-dbe4-4ba9-a331-d35a22e2628e_1020x1180.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:1180,&quot;width&quot;:1020,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:88780,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}\\\" class=\\\"sizing-normal\\\" alt=\\\"\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!T4xC!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F89b6b26c-dbe4-4ba9-a331-d35a22e2628e_1020x1180.png 424w, https://substackcdn.com/image/fetch/$s_!T4xC!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F89b6b26c-dbe4-4ba9-a331-d35a22e2628e_1020x1180.png 848w, https://substackcdn.com/image/fetch/$s_!T4xC!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F89b6b26c-dbe4-4ba9-a331-d35a22e2628e_1020x1180.png 1272w, https://substackcdn.com/image/fetch/$s_!T4xC!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F89b6b26c-dbe4-4ba9-a331-d35a22e2628e_1020x1180.png 1456w\\\" sizes=\\\"100vw\\\" loading=\\\"lazy\\\"></picture><div class=\\\"image-link-expand\\\"><div class=\\\"pencraft pc-display-flex pc-gap-8 pc-reset\\\"><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container restack-image\\\"><svg aria-hidden=\\\"true\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 20 20\\\" fill=\\\"none\\\" stroke-width=\\\"1.5\\\" stroke=\\\"var(--color-fg-primary)\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><g><path d=\\\"M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882\\\"></path></g></svg></button><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container view-image\\\"><svg xmlns=\\\"http://www.w3.org/2000/svg\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 24 24\\\" fill=\\\"none\\\" stroke=\\\"currentColor\\\" stroke-width=\\\"2\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" class=\\\"lucide lucide-maximize2 lucide-maximize-2\\\"><polyline points=\\\"15 3 21 3 21 9\\\"></polyline><polyline points=\\\"9 21 3 21 3 15\\\"></polyline><line x1=\\\"21\\\" x2=\\\"14\\\" y1=\\\"3\\\" y2=\\\"10\\\"></line><line x1=\\\"3\\\" x2=\\\"10\\\" y1=\\\"21\\\" y2=\\\"14\\\"></line></svg></button></div></div></div></a></figure></div><p>Overall, Datadog continues to impress me with their UI but their price tag remains a pain point for many teams.</p><p>One important issue to note is that Datadog does not create monitors by default despite me setting a target for the SLO:</p><div class=\\\"captioned-image-container\\\"><figure><a class=\\\"image-link image2 is-viewable-img\\\" target=\\\"_blank\\\" href=\\\"https://substackcdn.com/image/fetch/$s_!L5ka!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F88e3da45-6e4c-4455-8f24-d47d835b437d_1020x350.png\\\" data-component-name=\\\"Image2ToDOM\\\"><div class=\\\"image2-inset\\\"><picture><source type=\\\"image/webp\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!L5ka!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F88e3da45-6e4c-4455-8f24-d47d835b437d_1020x350.png 424w, https://substackcdn.com/image/fetch/$s_!L5ka!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F88e3da45-6e4c-4455-8f24-d47d835b437d_1020x350.png 848w, https://substackcdn.com/image/fetch/$s_!L5ka!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F88e3da45-6e4c-4455-8f24-d47d835b437d_1020x350.png 1272w, https://substackcdn.com/image/fetch/$s_!L5ka!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F88e3da45-6e4c-4455-8f24-d47d835b437d_1020x350.png 1456w\\\" sizes=\\\"100vw\\\"><img src=\\\"https://substackcdn.com/image/fetch/$s_!L5ka!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F88e3da45-6e4c-4455-8f24-d47d835b437d_1020x350.png\\\" width=\\\"1020\\\" height=\\\"350\\\" data-attrs=\\\"{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/88e3da45-6e4c-4455-8f24-d47d835b437d_1020x350.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:350,&quot;width&quot;:1020,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:26387,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}\\\" class=\\\"sizing-normal\\\" alt=\\\"\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!L5ka!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F88e3da45-6e4c-4455-8f24-d47d835b437d_1020x350.png 424w, https://substackcdn.com/image/fetch/$s_!L5ka!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F88e3da45-6e4c-4455-8f24-d47d835b437d_1020x350.png 848w, https://substackcdn.com/image/fetch/$s_!L5ka!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F88e3da45-6e4c-4455-8f24-d47d835b437d_1020x350.png 1272w, https://substackcdn.com/image/fetch/$s_!L5ka!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F88e3da45-6e4c-4455-8f24-d47d835b437d_1020x350.png 1456w\\\" sizes=\\\"100vw\\\" loading=\\\"lazy\\\"></picture><div class=\\\"image-link-expand\\\"><div class=\\\"pencraft pc-display-flex pc-gap-8 pc-reset\\\"><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container restack-image\\\"><svg aria-hidden=\\\"true\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 20 20\\\" fill=\\\"none\\\" stroke-width=\\\"1.5\\\" stroke=\\\"var(--color-fg-primary)\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><g><path d=\\\"M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882\\\"></path></g></svg></button><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container view-image\\\"><svg xmlns=\\\"http://www.w3.org/2000/svg\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 24 24\\\" fill=\\\"none\\\" stroke=\\\"currentColor\\\" stroke-width=\\\"2\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" class=\\\"lucide lucide-maximize2 lucide-maximize-2\\\"><polyline points=\\\"15 3 21 3 21 9\\\"></polyline><polyline points=\\\"9 21 3 21 3 15\\\"></polyline><line x1=\\\"21\\\" x2=\\\"14\\\" y1=\\\"3\\\" y2=\\\"10\\\"></line><line x1=\\\"3\\\" x2=\\\"10\\\" y1=\\\"21\\\" y2=\\\"14\\\"></line></svg></button></div></div></div></a></figure></div><p>Just like Elastic, Datadog doesn\u2019t create alerts out of the box. Fortunately, creating an alert is just a click away:</p><div class=\\\"captioned-image-container\\\"><figure><a class=\\\"image-link image2 is-viewable-img\\\" target=\\\"_blank\\\" href=\\\"https://substackcdn.com/image/fetch/$s_!5d9G!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc6906705-d281-40d1-9733-03f078a79e20_226x243.png\\\" data-component-name=\\\"Image2ToDOM\\\"><div class=\\\"image2-inset\\\"><picture><source type=\\\"image/webp\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!5d9G!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc6906705-d281-40d1-9733-03f078a79e20_226x243.png 424w, https://substackcdn.com/image/fetch/$s_!5d9G!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc6906705-d281-40d1-9733-03f078a79e20_226x243.png 848w, https://substackcdn.com/image/fetch/$s_!5d9G!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc6906705-d281-40d1-9733-03f078a79e20_226x243.png 1272w, https://substackcdn.com/image/fetch/$s_!5d9G!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc6906705-d281-40d1-9733-03f078a79e20_226x243.png 1456w\\\" sizes=\\\"100vw\\\"><img src=\\\"https://substackcdn.com/image/fetch/$s_!5d9G!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc6906705-d281-40d1-9733-03f078a79e20_226x243.png\\\" width=\\\"226\\\" height=\\\"243\\\" data-attrs=\\\"{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/c6906705-d281-40d1-9733-03f078a79e20_226x243.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:243,&quot;width&quot;:226,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:12160,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}\\\" class=\\\"sizing-normal\\\" alt=\\\"\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!5d9G!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc6906705-d281-40d1-9733-03f078a79e20_226x243.png 424w, https://substackcdn.com/image/fetch/$s_!5d9G!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc6906705-d281-40d1-9733-03f078a79e20_226x243.png 848w, https://substackcdn.com/image/fetch/$s_!5d9G!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc6906705-d281-40d1-9733-03f078a79e20_226x243.png 1272w, https://substackcdn.com/image/fetch/$s_!5d9G!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc6906705-d281-40d1-9733-03f078a79e20_226x243.png 1456w\\\" sizes=\\\"100vw\\\" loading=\\\"lazy\\\"></picture><div class=\\\"image-link-expand\\\"><div class=\\\"pencraft pc-display-flex pc-gap-8 pc-reset\\\"><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container restack-image\\\"><svg aria-hidden=\\\"true\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 20 20\\\" fill=\\\"none\\\" stroke-width=\\\"1.5\\\" stroke=\\\"var(--color-fg-primary)\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><g><path d=\\\"M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882\\\"></path></g></svg></button><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container view-image\\\"><svg xmlns=\\\"http://www.w3.org/2000/svg\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 24 24\\\" fill=\\\"none\\\" stroke=\\\"currentColor\\\" stroke-width=\\\"2\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" class=\\\"lucide lucide-maximize2 lucide-maximize-2\\\"><polyline points=\\\"15 3 21 3 21 9\\\"></polyline><polyline points=\\\"9 21 3 21 3 15\\\"></polyline><line x1=\\\"21\\\" x2=\\\"14\\\" y1=\\\"3\\\" y2=\\\"10\\\"></line><line x1=\\\"3\\\" x2=\\\"10\\\" y1=\\\"21\\\" y2=\\\"14\\\"></line></svg></button></div></div></div></a></figure></div><p>But it would be better to get the alert as part of setting up the SLO.</p><p>When it comes to setting an alert, you have two choices:</p><ul><li><p>By Error Budget consumption</p></li><li><p>By Burn Rate</p></li></ul><p>For the Error Budget burn, I find the default choice of 100% very curious! Here Datadog does not make any effort to make it easier to set a sane default (what happened to <a href=\\\"https://en.wikipedia.org/wiki/Principle_of_least_astonishment\\\">POLA</a>?).</p><p>I would have gone with any of the defaults <a href=\\\"https://sre.google/workbook/alerting-on-slos/\\\">suggested by Google</a> which is max 10%!</p><div class=\\\"captioned-image-container\\\"><figure><a class=\\\"image-link image2 is-viewable-img\\\" target=\\\"_blank\\\" href=\\\"https://substackcdn.com/image/fetch/$s_!U7P1!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb6be3c16-6bc9-43d6-b7f6-70eb51731c72_621x279.png\\\" data-component-name=\\\"Image2ToDOM\\\"><div class=\\\"image2-inset\\\"><picture><source type=\\\"image/webp\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!U7P1!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb6be3c16-6bc9-43d6-b7f6-70eb51731c72_621x279.png 424w, https://substackcdn.com/image/fetch/$s_!U7P1!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb6be3c16-6bc9-43d6-b7f6-70eb51731c72_621x279.png 848w, https://substackcdn.com/image/fetch/$s_!U7P1!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb6be3c16-6bc9-43d6-b7f6-70eb51731c72_621x279.png 1272w, https://substackcdn.com/image/fetch/$s_!U7P1!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb6be3c16-6bc9-43d6-b7f6-70eb51731c72_621x279.png 1456w\\\" sizes=\\\"100vw\\\"><img src=\\\"https://substackcdn.com/image/fetch/$s_!U7P1!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb6be3c16-6bc9-43d6-b7f6-70eb51731c72_621x279.png\\\" width=\\\"621\\\" height=\\\"279\\\" data-attrs=\\\"{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/b6be3c16-6bc9-43d6-b7f6-70eb51731c72_621x279.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:279,&quot;width&quot;:621,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:23377,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}\\\" class=\\\"sizing-normal\\\" alt=\\\"\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!U7P1!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb6be3c16-6bc9-43d6-b7f6-70eb51731c72_621x279.png 424w, https://substackcdn.com/image/fetch/$s_!U7P1!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb6be3c16-6bc9-43d6-b7f6-70eb51731c72_621x279.png 848w, https://substackcdn.com/image/fetch/$s_!U7P1!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb6be3c16-6bc9-43d6-b7f6-70eb51731c72_621x279.png 1272w, https://substackcdn.com/image/fetch/$s_!U7P1!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb6be3c16-6bc9-43d6-b7f6-70eb51731c72_621x279.png 1456w\\\" sizes=\\\"100vw\\\" loading=\\\"lazy\\\"></picture><div class=\\\"image-link-expand\\\"><div class=\\\"pencraft pc-display-flex pc-gap-8 pc-reset\\\"><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container restack-image\\\"><svg aria-hidden=\\\"true\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 20 20\\\" fill=\\\"none\\\" stroke-width=\\\"1.5\\\" stroke=\\\"var(--color-fg-primary)\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><g><path d=\\\"M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882\\\"></path></g></svg></button><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container view-image\\\"><svg xmlns=\\\"http://www.w3.org/2000/svg\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 24 24\\\" fill=\\\"none\\\" stroke=\\\"currentColor\\\" stroke-width=\\\"2\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" class=\\\"lucide lucide-maximize2 lucide-maximize-2\\\"><polyline points=\\\"15 3 21 3 21 9\\\"></polyline><polyline points=\\\"9 21 3 21 3 15\\\"></polyline><line x1=\\\"21\\\" x2=\\\"14\\\" y1=\\\"3\\\" y2=\\\"10\\\"></line><line x1=\\\"3\\\" x2=\\\"10\\\" y1=\\\"21\\\" y2=\\\"14\\\"></line></svg></button></div></div></div></a></figure></div><p>For the Burn Rate, you need to know what you\u2019re doing. Here, I have configured it according to one of Google\u2019s recommendations:</p><div class=\\\"captioned-image-container\\\"><figure><a class=\\\"image-link image2 is-viewable-img\\\" target=\\\"_blank\\\" href=\\\"https://substackcdn.com/image/fetch/$s_!aAAM!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F95d7c13c-cc2b-479a-abc9-6d06980e5cd8_621x306.png\\\" data-component-name=\\\"Image2ToDOM\\\"><div class=\\\"image2-inset\\\"><picture><source type=\\\"image/webp\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!aAAM!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F95d7c13c-cc2b-479a-abc9-6d06980e5cd8_621x306.png 424w, https://substackcdn.com/image/fetch/$s_!aAAM!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F95d7c13c-cc2b-479a-abc9-6d06980e5cd8_621x306.png 848w, https://substackcdn.com/image/fetch/$s_!aAAM!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F95d7c13c-cc2b-479a-abc9-6d06980e5cd8_621x306.png 1272w, https://substackcdn.com/image/fetch/$s_!aAAM!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F95d7c13c-cc2b-479a-abc9-6d06980e5cd8_621x306.png 1456w\\\" sizes=\\\"100vw\\\"><img src=\\\"https://substackcdn.com/image/fetch/$s_!aAAM!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F95d7c13c-cc2b-479a-abc9-6d06980e5cd8_621x306.png\\\" width=\\\"621\\\" height=\\\"306\\\" data-attrs=\\\"{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/95d7c13c-cc2b-479a-abc9-6d06980e5cd8_621x306.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:306,&quot;width&quot;:621,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:26486,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}\\\" class=\\\"sizing-normal\\\" alt=\\\"\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!aAAM!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F95d7c13c-cc2b-479a-abc9-6d06980e5cd8_621x306.png 424w, https://substackcdn.com/image/fetch/$s_!aAAM!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F95d7c13c-cc2b-479a-abc9-6d06980e5cd8_621x306.png 848w, https://substackcdn.com/image/fetch/$s_!aAAM!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F95d7c13c-cc2b-479a-abc9-6d06980e5cd8_621x306.png 1272w, https://substackcdn.com/image/fetch/$s_!aAAM!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F95d7c13c-cc2b-479a-abc9-6d06980e5cd8_621x306.png 1456w\\\" sizes=\\\"100vw\\\" loading=\\\"lazy\\\"></picture><div class=\\\"image-link-expand\\\"><div class=\\\"pencraft pc-display-flex pc-gap-8 pc-reset\\\"><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container restack-image\\\"><svg aria-hidden=\\\"true\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 20 20\\\" fill=\\\"none\\\" stroke-width=\\\"1.5\\\" stroke=\\\"var(--color-fg-primary)\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><g><path d=\\\"M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882\\\"></path></g></svg></button><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container view-image\\\"><svg xmlns=\\\"http://www.w3.org/2000/svg\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 24 24\\\" fill=\\\"none\\\" stroke=\\\"currentColor\\\" stroke-width=\\\"2\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" class=\\\"lucide lucide-maximize2 lucide-maximize-2\\\"><polyline points=\\\"15 3 21 3 21 9\\\"></polyline><polyline points=\\\"9 21 3 21 3 15\\\"></polyline><line x1=\\\"21\\\" x2=\\\"14\\\" y1=\\\"3\\\" y2=\\\"10\\\"></line><line x1=\\\"3\\\" x2=\\\"10\\\" y1=\\\"21\\\" y2=\\\"14\\\"></line></svg></button></div></div></div></a></figure></div><p>The short window lookback is also hard coded to 1/12th of the long window. This is a sane default and still better than Elastic that hides this information. But I miss the ability to set it to other values. Whoever wrote <a href=\\\"https://docs.datadoghq.com/service_management/service_level_objectives/burn_rate/\\\">the documentation</a> was aware of at least 1 use case for it</p><blockquote><p>If you find that your burn rate alert is consistently too flaky, this is an indication that you should make your short window slightly larger.</p></blockquote><p>Nor can I disable short window alerts.</p><p>In the <a href=\\\"https://slc.alexewerlof.com/\\\">Service Level Calculator</a>, you can see all 3 suggestions:</p><div class=\\\"captioned-image-container\\\"><figure><a class=\\\"image-link image2\\\" target=\\\"_blank\\\" href=\\\"https://substackcdn.com/image/fetch/$s_!SwKt!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fcd3e9fe6-a5e0-4d47-8950-80ce2c39e6f3_509x227.png\\\" data-component-name=\\\"Image2ToDOM\\\"><div class=\\\"image2-inset\\\"><picture><source type=\\\"image/webp\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!SwKt!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fcd3e9fe6-a5e0-4d47-8950-80ce2c39e6f3_509x227.png 424w, https://substackcdn.com/image/fetch/$s_!SwKt!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fcd3e9fe6-a5e0-4d47-8950-80ce2c39e6f3_509x227.png 848w, https://substackcdn.com/image/fetch/$s_!SwKt!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fcd3e9fe6-a5e0-4d47-8950-80ce2c39e6f3_509x227.png 1272w, https://substackcdn.com/image/fetch/$s_!SwKt!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fcd3e9fe6-a5e0-4d47-8950-80ce2c39e6f3_509x227.png 1456w\\\" sizes=\\\"100vw\\\"><img src=\\\"https://substackcdn.com/image/fetch/$s_!SwKt!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fcd3e9fe6-a5e0-4d47-8950-80ce2c39e6f3_509x227.png\\\" width=\\\"509\\\" height=\\\"227\\\" data-attrs=\\\"{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/cd3e9fe6-a5e0-4d47-8950-80ce2c39e6f3_509x227.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:227,&quot;width&quot;:509,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:53014,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}\\\" class=\\\"sizing-normal\\\" alt=\\\"\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!SwKt!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fcd3e9fe6-a5e0-4d47-8950-80ce2c39e6f3_509x227.png 424w, https://substackcdn.com/image/fetch/$s_!SwKt!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fcd3e9fe6-a5e0-4d47-8950-80ce2c39e6f3_509x227.png 848w, https://substackcdn.com/image/fetch/$s_!SwKt!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fcd3e9fe6-a5e0-4d47-8950-80ce2c39e6f3_509x227.png 1272w, https://substackcdn.com/image/fetch/$s_!SwKt!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fcd3e9fe6-a5e0-4d47-8950-80ce2c39e6f3_509x227.png 1456w\\\" sizes=\\\"100vw\\\" loading=\\\"lazy\\\"></picture><div></div></div></a></figure></div><p>Note that the 1h/5m recommendation is for a 30 day SLO window.</p><p>For a 7-day window, if you go with 2% consumption at 14.4x, you\u2019ll end up with 14 minutes for long window lookback and ~1 minute for short window lookback. Technicalities, I know, but it feels that Datadog\u2019s SLO feature is just put together in a sloppy manner to tick a feature box. I have higher expectation at Datadog\u2019s price point especially because the rest of their platform has a great UX.</p><p>Again, what they miss in their UI, they cover with <a href=\\\"https://docs.datadoghq.com/service_management/service_level_objectives/burn_rate/\\\">documentation</a>:</p><div class=\\\"captioned-image-container\\\"><figure><a class=\\\"image-link image2 is-viewable-img\\\" target=\\\"_blank\\\" href=\\\"https://substackcdn.com/image/fetch/$s_!0V-a!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F24319c97-d5d2-4732-89eb-5994a931159d_722x709.png\\\" data-component-name=\\\"Image2ToDOM\\\"><div class=\\\"image2-inset\\\"><picture><source type=\\\"image/webp\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!0V-a!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F24319c97-d5d2-4732-89eb-5994a931159d_722x709.png 424w, https://substackcdn.com/image/fetch/$s_!0V-a!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F24319c97-d5d2-4732-89eb-5994a931159d_722x709.png 848w, https://substackcdn.com/image/fetch/$s_!0V-a!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F24319c97-d5d2-4732-89eb-5994a931159d_722x709.png 1272w, https://substackcdn.com/image/fetch/$s_!0V-a!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F24319c97-d5d2-4732-89eb-5994a931159d_722x709.png 1456w\\\" sizes=\\\"100vw\\\"><img src=\\\"https://substackcdn.com/image/fetch/$s_!0V-a!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F24319c97-d5d2-4732-89eb-5994a931159d_722x709.png\\\" width=\\\"722\\\" height=\\\"709\\\" data-attrs=\\\"{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/24319c97-d5d2-4732-89eb-5994a931159d_722x709.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:709,&quot;width&quot;:722,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:55960,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}\\\" class=\\\"sizing-normal\\\" alt=\\\"\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!0V-a!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F24319c97-d5d2-4732-89eb-5994a931159d_722x709.png 424w, https://substackcdn.com/image/fetch/$s_!0V-a!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F24319c97-d5d2-4732-89eb-5994a931159d_722x709.png 848w, https://substackcdn.com/image/fetch/$s_!0V-a!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F24319c97-d5d2-4732-89eb-5994a931159d_722x709.png 1272w, https://substackcdn.com/image/fetch/$s_!0V-a!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F24319c97-d5d2-4732-89eb-5994a931159d_722x709.png 1456w\\\" sizes=\\\"100vw\\\" loading=\\\"lazy\\\"></picture><div class=\\\"image-link-expand\\\"><div class=\\\"pencraft pc-display-flex pc-gap-8 pc-reset\\\"><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container restack-image\\\"><svg aria-hidden=\\\"true\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 20 20\\\" fill=\\\"none\\\" stroke-width=\\\"1.5\\\" stroke=\\\"var(--color-fg-primary)\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><g><path d=\\\"M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882\\\"></path></g></svg></button><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container view-image\\\"><svg xmlns=\\\"http://www.w3.org/2000/svg\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 24 24\\\" fill=\\\"none\\\" stroke=\\\"currentColor\\\" stroke-width=\\\"2\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" class=\\\"lucide lucide-maximize2 lucide-maximize-2\\\"><polyline points=\\\"15 3 21 3 21 9\\\"></polyline><polyline points=\\\"9 21 3 21 3 15\\\"></polyline><line x1=\\\"21\\\" x2=\\\"14\\\" y1=\\\"3\\\" y2=\\\"10\\\"></line><line x1=\\\"3\\\" x2=\\\"10\\\" y1=\\\"21\\\" y2=\\\"14\\\"></line></svg></button></div></div></div></a></figure></div><p>The documentation has terms like \u201Cgood behavior\u201D instead of \u201Cgood events\u201D or \u201Cgood timeslices\u201D.</p><p>I also found the term \u201Ctheoretical error budget\u201D confusing, but the document does not disappoint with wise sentences like this:</p><blockquote><p>theoretical error budget consumption and actual error budget consumption are equal <em>because time always moves at a constant rate</em></p></blockquote><p>You don\u2019t say! \uD83D\uDE02</p><p>Fine! What\u2019s wrong with just plain \u201Cerror budget\u201D? You certainly <a href=\\\"https://www.google.com/search?q=site%3Asre.google+%22theoretical+error+budget%22\\\">don\u2019t find a reference</a> to \u201Ctheoretical error budget\u201D in Google\u2019s books. Service Levels are already hard enough. Why make the learning curve even steeper by making up new words? (Uhm, said the guy who invented <a href=\\\"https://blog.alexewerlof.com/p/sls\\\">SLS</a> and <a href=\\\"https://blog.alexewerlof.com/p/10x9\\\">10x/9</a>!) \uD83E\uDEE0</p><p>To my knowledge Datadog doesn\u2019t support <a href=\\\"https://openslo.com/\\\">OpenSLO</a> but they <a href=\\\"https://docs.datadoghq.com/service_management/service_level_objectives/burn_rate/#api-and-terraform\\\">support Terraform</a>.</p><h1>Grafana</h1><p>Grafana refers to Service Levels as SLO and carefully hides them under <strong>Alerts &amp; IRM</strong>. IRM stands for Incident Response Management, if you\u2019re wondering about that obvious acronym! Dammit UI designers! \uD83D\uDE02</p><div class=\\\"captioned-image-container\\\"><figure><a class=\\\"image-link image2 is-viewable-img\\\" target=\\\"_blank\\\" href=\\\"https://substackcdn.com/image/fetch/$s_!69pU!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fe39e4b0c-97f1-4bfa-a678-fe5d99599a7d_294x467.png\\\" data-component-name=\\\"Image2ToDOM\\\"><div class=\\\"image2-inset\\\"><picture><source type=\\\"image/webp\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!69pU!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fe39e4b0c-97f1-4bfa-a678-fe5d99599a7d_294x467.png 424w, https://substackcdn.com/image/fetch/$s_!69pU!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fe39e4b0c-97f1-4bfa-a678-fe5d99599a7d_294x467.png 848w, https://substackcdn.com/image/fetch/$s_!69pU!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fe39e4b0c-97f1-4bfa-a678-fe5d99599a7d_294x467.png 1272w, https://substackcdn.com/image/fetch/$s_!69pU!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fe39e4b0c-97f1-4bfa-a678-fe5d99599a7d_294x467.png 1456w\\\" sizes=\\\"100vw\\\"><img src=\\\"https://substackcdn.com/image/fetch/$s_!69pU!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fe39e4b0c-97f1-4bfa-a678-fe5d99599a7d_294x467.png\\\" width=\\\"294\\\" height=\\\"467\\\" data-attrs=\\\"{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/e39e4b0c-97f1-4bfa-a678-fe5d99599a7d_294x467.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:467,&quot;width&quot;:294,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:25347,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}\\\" class=\\\"sizing-normal\\\" alt=\\\"\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!69pU!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fe39e4b0c-97f1-4bfa-a678-fe5d99599a7d_294x467.png 424w, https://substackcdn.com/image/fetch/$s_!69pU!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fe39e4b0c-97f1-4bfa-a678-fe5d99599a7d_294x467.png 848w, https://substackcdn.com/image/fetch/$s_!69pU!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fe39e4b0c-97f1-4bfa-a678-fe5d99599a7d_294x467.png 1272w, https://substackcdn.com/image/fetch/$s_!69pU!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fe39e4b0c-97f1-4bfa-a678-fe5d99599a7d_294x467.png 1456w\\\" sizes=\\\"100vw\\\" loading=\\\"lazy\\\"></picture><div class=\\\"image-link-expand\\\"><div class=\\\"pencraft pc-display-flex pc-gap-8 pc-reset\\\"><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container restack-image\\\"><svg aria-hidden=\\\"true\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 20 20\\\" fill=\\\"none\\\" stroke-width=\\\"1.5\\\" stroke=\\\"var(--color-fg-primary)\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><g><path d=\\\"M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882\\\"></path></g></svg></button><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container view-image\\\"><svg xmlns=\\\"http://www.w3.org/2000/svg\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 24 24\\\" fill=\\\"none\\\" stroke=\\\"currentColor\\\" stroke-width=\\\"2\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" class=\\\"lucide lucide-maximize2 lucide-maximize-2\\\"><polyline points=\\\"15 3 21 3 21 9\\\"></polyline><polyline points=\\\"9 21 3 21 3 15\\\"></polyline><line x1=\\\"21\\\" x2=\\\"14\\\" y1=\\\"3\\\" y2=\\\"10\\\"></line><line x1=\\\"3\\\" x2=\\\"10\\\" y1=\\\"21\\\" y2=\\\"14\\\"></line></svg></button></div></div></div></a></figure></div><p>This is already a nice touch because Service Levels need to be tied to some responsibility and alerting is the absolute basic mechanism to do that.</p><p>In fact, alerting is such a prominent feature of Grafana Service Level implementation that it has a dedicated filter in the SLO management:</p><div class=\\\"captioned-image-container\\\"><figure><a class=\\\"image-link image2\\\" target=\\\"_blank\\\" href=\\\"https://substackcdn.com/image/fetch/$s_!2ZWw!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa22aee4b-c121-4b4f-932a-51b224780e68_1279x313.png\\\" data-component-name=\\\"Image2ToDOM\\\"><div class=\\\"image2-inset\\\"><picture><source type=\\\"image/webp\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!2ZWw!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa22aee4b-c121-4b4f-932a-51b224780e68_1279x313.png 424w, https://substackcdn.com/image/fetch/$s_!2ZWw!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa22aee4b-c121-4b4f-932a-51b224780e68_1279x313.png 848w, https://substackcdn.com/image/fetch/$s_!2ZWw!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa22aee4b-c121-4b4f-932a-51b224780e68_1279x313.png 1272w, https://substackcdn.com/image/fetch/$s_!2ZWw!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa22aee4b-c121-4b4f-932a-51b224780e68_1279x313.png 1456w\\\" sizes=\\\"100vw\\\"><img src=\\\"https://substackcdn.com/image/fetch/$s_!2ZWw!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa22aee4b-c121-4b4f-932a-51b224780e68_1279x313.png\\\" width=\\\"1279\\\" height=\\\"313\\\" data-attrs=\\\"{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/a22aee4b-c121-4b4f-932a-51b224780e68_1279x313.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:313,&quot;width&quot;:1279,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:34927,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}\\\" class=\\\"sizing-normal\\\" alt=\\\"\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!2ZWw!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa22aee4b-c121-4b4f-932a-51b224780e68_1279x313.png 424w, https://substackcdn.com/image/fetch/$s_!2ZWw!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa22aee4b-c121-4b4f-932a-51b224780e68_1279x313.png 848w, https://substackcdn.com/image/fetch/$s_!2ZWw!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa22aee4b-c121-4b4f-932a-51b224780e68_1279x313.png 1272w, https://substackcdn.com/image/fetch/$s_!2ZWw!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa22aee4b-c121-4b4f-932a-51b224780e68_1279x313.png 1456w\\\" sizes=\\\"100vw\\\" loading=\\\"lazy\\\"></picture><div></div></div></a></figure></div><p>Alerts are also a key attribute of the SLO. A dedicated button takes you directly to alerting configuration:</p><div class=\\\"captioned-image-container\\\"><figure><a class=\\\"image-link image2\\\" target=\\\"_blank\\\" href=\\\"https://substackcdn.com/image/fetch/$s_!0A-t!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff1af889e-b058-4e56-b079-67d459afa12f_128x116.png\\\" data-component-name=\\\"Image2ToDOM\\\"><div class=\\\"image2-inset\\\"><picture><source type=\\\"image/webp\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!0A-t!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff1af889e-b058-4e56-b079-67d459afa12f_128x116.png 424w, https://substackcdn.com/image/fetch/$s_!0A-t!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff1af889e-b058-4e56-b079-67d459afa12f_128x116.png 848w, https://substackcdn.com/image/fetch/$s_!0A-t!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff1af889e-b058-4e56-b079-67d459afa12f_128x116.png 1272w, https://substackcdn.com/image/fetch/$s_!0A-t!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff1af889e-b058-4e56-b079-67d459afa12f_128x116.png 1456w\\\" sizes=\\\"100vw\\\"><img src=\\\"https://substackcdn.com/image/fetch/$s_!0A-t!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff1af889e-b058-4e56-b079-67d459afa12f_128x116.png\\\" width=\\\"128\\\" height=\\\"116\\\" data-attrs=\\\"{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/f1af889e-b058-4e56-b079-67d459afa12f_128x116.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:116,&quot;width&quot;:128,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:3951,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}\\\" class=\\\"sizing-normal\\\" alt=\\\"\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!0A-t!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff1af889e-b058-4e56-b079-67d459afa12f_128x116.png 424w, https://substackcdn.com/image/fetch/$s_!0A-t!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff1af889e-b058-4e56-b079-67d459afa12f_128x116.png 848w, https://substackcdn.com/image/fetch/$s_!0A-t!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff1af889e-b058-4e56-b079-67d459afa12f_128x116.png 1272w, https://substackcdn.com/image/fetch/$s_!0A-t!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff1af889e-b058-4e56-b079-67d459afa12f_128x116.png 1456w\\\" sizes=\\\"100vw\\\" loading=\\\"lazy\\\"></picture><div></div></div></a></figure></div><p>Love it! \uD83D\uDC96</p><p>The process of creating an SLO is straightforward using a wizard UI:</p><div class=\\\"captioned-image-container\\\"><figure><a class=\\\"image-link image2 is-viewable-img\\\" target=\\\"_blank\\\" href=\\\"https://substackcdn.com/image/fetch/$s_!yzky!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F84aa6c6a-57d1-423c-b94e-7a5da9bb53f4_1144x771.png\\\" data-component-name=\\\"Image2ToDOM\\\"><div class=\\\"image2-inset\\\"><picture><source type=\\\"image/webp\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!yzky!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F84aa6c6a-57d1-423c-b94e-7a5da9bb53f4_1144x771.png 424w, https://substackcdn.com/image/fetch/$s_!yzky!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F84aa6c6a-57d1-423c-b94e-7a5da9bb53f4_1144x771.png 848w, https://substackcdn.com/image/fetch/$s_!yzky!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F84aa6c6a-57d1-423c-b94e-7a5da9bb53f4_1144x771.png 1272w, https://substackcdn.com/image/fetch/$s_!yzky!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F84aa6c6a-57d1-423c-b94e-7a5da9bb53f4_1144x771.png 1456w\\\" sizes=\\\"100vw\\\"><img src=\\\"https://substackcdn.com/image/fetch/$s_!yzky!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F84aa6c6a-57d1-423c-b94e-7a5da9bb53f4_1144x771.png\\\" width=\\\"1144\\\" height=\\\"771\\\" data-attrs=\\\"{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/84aa6c6a-57d1-423c-b94e-7a5da9bb53f4_1144x771.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:771,&quot;width&quot;:1144,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:89631,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}\\\" class=\\\"sizing-normal\\\" alt=\\\"\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!yzky!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F84aa6c6a-57d1-423c-b94e-7a5da9bb53f4_1144x771.png 424w, https://substackcdn.com/image/fetch/$s_!yzky!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F84aa6c6a-57d1-423c-b94e-7a5da9bb53f4_1144x771.png 848w, https://substackcdn.com/image/fetch/$s_!yzky!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F84aa6c6a-57d1-423c-b94e-7a5da9bb53f4_1144x771.png 1272w, https://substackcdn.com/image/fetch/$s_!yzky!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F84aa6c6a-57d1-423c-b94e-7a5da9bb53f4_1144x771.png 1456w\\\" sizes=\\\"100vw\\\" loading=\\\"lazy\\\"></picture><div class=\\\"image-link-expand\\\"><div class=\\\"pencraft pc-display-flex pc-gap-8 pc-reset\\\"><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container restack-image\\\"><svg aria-hidden=\\\"true\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 20 20\\\" fill=\\\"none\\\" stroke-width=\\\"1.5\\\" stroke=\\\"var(--color-fg-primary)\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><g><path d=\\\"M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882\\\"></path></g></svg></button><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container view-image\\\"><svg xmlns=\\\"http://www.w3.org/2000/svg\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 24 24\\\" fill=\\\"none\\\" stroke=\\\"currentColor\\\" stroke-width=\\\"2\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" class=\\\"lucide lucide-maximize2 lucide-maximize-2\\\"><polyline points=\\\"15 3 21 3 21 9\\\"></polyline><polyline points=\\\"9 21 3 21 3 15\\\"></polyline><line x1=\\\"21\\\" x2=\\\"14\\\" y1=\\\"3\\\" y2=\\\"10\\\"></line><line x1=\\\"3\\\" x2=\\\"10\\\" y1=\\\"21\\\" y2=\\\"14\\\"></line></svg></button></div></div></div></a></figure></div><p>You see? 5 steps! Not 3! And certainly no circles. Grafana is original! Or at least their UI designers know how to <a href=\\\"https://grafana.com/blog/2023/05/12/inside-grafana-labs-remote-first-is-relationship-first/\\\">work from home</a>.</p><p>You can enter any <a href=\\\"https://blog.alexewerlof.com/p/compliance-period\\\">compliance periods</a> as long as it\u2019s in days\u2026 Or nights\u2026 You get the idea! 28 days is common for weekly seasonality (when the metric trend follows a weekly pattern) but 30 days is the most common:</p><div class=\\\"captioned-image-container\\\"><figure><a class=\\\"image-link image2\\\" target=\\\"_blank\\\" href=\\\"https://substackcdn.com/image/fetch/$s_!BXlp!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F0d87b80a-672c-47f9-9882-e4a47a0f9fff_280x95.png\\\" data-component-name=\\\"Image2ToDOM\\\"><div class=\\\"image2-inset\\\"><picture><source type=\\\"image/webp\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!BXlp!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F0d87b80a-672c-47f9-9882-e4a47a0f9fff_280x95.png 424w, https://substackcdn.com/image/fetch/$s_!BXlp!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F0d87b80a-672c-47f9-9882-e4a47a0f9fff_280x95.png 848w, https://substackcdn.com/image/fetch/$s_!BXlp!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F0d87b80a-672c-47f9-9882-e4a47a0f9fff_280x95.png 1272w, https://substackcdn.com/image/fetch/$s_!BXlp!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F0d87b80a-672c-47f9-9882-e4a47a0f9fff_280x95.png 1456w\\\" sizes=\\\"100vw\\\"><img src=\\\"https://substackcdn.com/image/fetch/$s_!BXlp!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F0d87b80a-672c-47f9-9882-e4a47a0f9fff_280x95.png\\\" width=\\\"280\\\" height=\\\"95\\\" data-attrs=\\\"{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/0d87b80a-672c-47f9-9882-e4a47a0f9fff_280x95.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:95,&quot;width&quot;:280,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:6823,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}\\\" class=\\\"sizing-normal\\\" alt=\\\"\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!BXlp!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F0d87b80a-672c-47f9-9882-e4a47a0f9fff_280x95.png 424w, https://substackcdn.com/image/fetch/$s_!BXlp!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F0d87b80a-672c-47f9-9882-e4a47a0f9fff_280x95.png 848w, https://substackcdn.com/image/fetch/$s_!BXlp!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F0d87b80a-672c-47f9-9882-e4a47a0f9fff_280x95.png 1272w, https://substackcdn.com/image/fetch/$s_!BXlp!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F0d87b80a-672c-47f9-9882-e4a47a0f9fff_280x95.png 1456w\\\" sizes=\\\"100vw\\\" loading=\\\"lazy\\\"></picture><div></div></div></a></figure></div><p>Grafana doesn\u2019t seem to support <a href=\\\"https://blog.alexewerlof.com/p/compliance-period\\\">calendar-bound compliance periods</a> (e.g. budgeting per calendar month) as far as I can tell..</p><p>SLI can be either <a href=\\\"https://blog.alexewerlof.com/p/sli\\\">time-based (e.g. uptime) or event-based</a>. Grafana\u2019s default UI doesn\u2019t bring up that aspect which is a miss. Typically, time-based SLIs are easier to start with and I\u2019d expect to see that choice in the first step of the wizard as a prominent option.</p><p>As we <a href=\\\"https://blog.alexewerlof.com/p/sli\\\">discussed before</a>, the formula for SLI is success divided by valid events or timeslots.</p><p>There\u2019s a distinction between <em><a href=\\\"https://blog.alexewerlof.com/p/valid-vs-total\\\">valid</a></em><a href=\\\"https://blog.alexewerlof.com/p/valid-vs-total\\\"> and </a><em><a href=\\\"https://blog.alexewerlof.com/p/valid-vs-total\\\">total</a></em> which is often underutilized. Grafana chose the simpler term:</p><div class=\\\"captioned-image-container\\\"><figure><a class=\\\"image-link image2\\\" target=\\\"_blank\\\" href=\\\"https://substackcdn.com/image/fetch/$s_!oCSP!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff4b19930-d7d1-4083-abcd-38196ef08e4a_828x182.png\\\" data-component-name=\\\"Image2ToDOM\\\"><div class=\\\"image2-inset\\\"><picture><source type=\\\"image/webp\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!oCSP!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff4b19930-d7d1-4083-abcd-38196ef08e4a_828x182.png 424w, https://substackcdn.com/image/fetch/$s_!oCSP!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff4b19930-d7d1-4083-abcd-38196ef08e4a_828x182.png 848w, https://substackcdn.com/image/fetch/$s_!oCSP!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff4b19930-d7d1-4083-abcd-38196ef08e4a_828x182.png 1272w, https://substackcdn.com/image/fetch/$s_!oCSP!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff4b19930-d7d1-4083-abcd-38196ef08e4a_828x182.png 1456w\\\" sizes=\\\"100vw\\\"><img src=\\\"https://substackcdn.com/image/fetch/$s_!oCSP!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff4b19930-d7d1-4083-abcd-38196ef08e4a_828x182.png\\\" width=\\\"828\\\" height=\\\"182\\\" data-attrs=\\\"{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/f4b19930-d7d1-4083-abcd-38196ef08e4a_828x182.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:182,&quot;width&quot;:828,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:15826,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}\\\" class=\\\"sizing-normal\\\" alt=\\\"\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!oCSP!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff4b19930-d7d1-4083-abcd-38196ef08e4a_828x182.png 424w, https://substackcdn.com/image/fetch/$s_!oCSP!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff4b19930-d7d1-4083-abcd-38196ef08e4a_828x182.png 848w, https://substackcdn.com/image/fetch/$s_!oCSP!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff4b19930-d7d1-4083-abcd-38196ef08e4a_828x182.png 1272w, https://substackcdn.com/image/fetch/$s_!oCSP!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff4b19930-d7d1-4083-abcd-38196ef08e4a_828x182.png 1456w\\\" sizes=\\\"100vw\\\" loading=\\\"lazy\\\"></picture><div></div></div></a></figure></div><p>Just like the other two, Grafana only supports <a href=\\\"https://blog.alexewerlof.com/p/sli-heterogeneous-vs-homogeneous\\\">heterogeneous SLIs</a>. </p><p>I suppose homogeneous SLIs are possible in the <em>Advanced</em> view, but my evaluation instance didn\u2019t have enough data to try this aspect:</p><div class=\\\"captioned-image-container\\\"><figure><a class=\\\"image-link image2 is-viewable-img\\\" target=\\\"_blank\\\" href=\\\"https://substackcdn.com/image/fetch/$s_!byI3!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fac151ca8-ef8b-46de-9340-30ef8302fd71_815x570.png\\\" data-component-name=\\\"Image2ToDOM\\\"><div class=\\\"image2-inset\\\"><picture><source type=\\\"image/webp\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!byI3!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fac151ca8-ef8b-46de-9340-30ef8302fd71_815x570.png 424w, https://substackcdn.com/image/fetch/$s_!byI3!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fac151ca8-ef8b-46de-9340-30ef8302fd71_815x570.png 848w, https://substackcdn.com/image/fetch/$s_!byI3!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fac151ca8-ef8b-46de-9340-30ef8302fd71_815x570.png 1272w, https://substackcdn.com/image/fetch/$s_!byI3!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fac151ca8-ef8b-46de-9340-30ef8302fd71_815x570.png 1456w\\\" sizes=\\\"100vw\\\"><img src=\\\"https://substackcdn.com/image/fetch/$s_!byI3!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fac151ca8-ef8b-46de-9340-30ef8302fd71_815x570.png\\\" width=\\\"815\\\" height=\\\"570\\\" data-attrs=\\\"{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/ac151ca8-ef8b-46de-9340-30ef8302fd71_815x570.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:570,&quot;width&quot;:815,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:70208,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}\\\" class=\\\"sizing-normal\\\" alt=\\\"\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!byI3!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fac151ca8-ef8b-46de-9340-30ef8302fd71_815x570.png 424w, https://substackcdn.com/image/fetch/$s_!byI3!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fac151ca8-ef8b-46de-9340-30ef8302fd71_815x570.png 848w, https://substackcdn.com/image/fetch/$s_!byI3!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fac151ca8-ef8b-46de-9340-30ef8302fd71_815x570.png 1272w, https://substackcdn.com/image/fetch/$s_!byI3!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fac151ca8-ef8b-46de-9340-30ef8302fd71_815x570.png 1456w\\\" sizes=\\\"100vw\\\" loading=\\\"lazy\\\"></picture><div class=\\\"image-link-expand\\\"><div class=\\\"pencraft pc-display-flex pc-gap-8 pc-reset\\\"><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container restack-image\\\"><svg aria-hidden=\\\"true\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 20 20\\\" fill=\\\"none\\\" stroke-width=\\\"1.5\\\" stroke=\\\"var(--color-fg-primary)\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><g><path d=\\\"M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882\\\"></path></g></svg></button><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container view-image\\\"><svg xmlns=\\\"http://www.w3.org/2000/svg\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 24 24\\\" fill=\\\"none\\\" stroke=\\\"currentColor\\\" stroke-width=\\\"2\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" class=\\\"lucide lucide-maximize2 lucide-maximize-2\\\"><polyline points=\\\"15 3 21 3 21 9\\\"></polyline><polyline points=\\\"9 21 3 21 3 15\\\"></polyline><line x1=\\\"21\\\" x2=\\\"14\\\" y1=\\\"3\\\" y2=\\\"10\\\"></line><line x1=\\\"3\\\" x2=\\\"10\\\" y1=\\\"21\\\" y2=\\\"14\\\"></line></svg></button></div></div></div></a></figure></div><p>Setting SLO and Error Budget in one step is another nice touch in Grafana because these two values are tightly coupled:</p><div class=\\\"captioned-image-container\\\"><figure><a class=\\\"image-link image2 is-viewable-img\\\" target=\\\"_blank\\\" href=\\\"https://substackcdn.com/image/fetch/$s_!0aOO!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F695b4fc5-289b-4bb6-bd99-0c84b1015e71_853x352.png\\\" data-component-name=\\\"Image2ToDOM\\\"><div class=\\\"image2-inset\\\"><picture><source type=\\\"image/webp\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!0aOO!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F695b4fc5-289b-4bb6-bd99-0c84b1015e71_853x352.png 424w, https://substackcdn.com/image/fetch/$s_!0aOO!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F695b4fc5-289b-4bb6-bd99-0c84b1015e71_853x352.png 848w, https://substackcdn.com/image/fetch/$s_!0aOO!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F695b4fc5-289b-4bb6-bd99-0c84b1015e71_853x352.png 1272w, https://substackcdn.com/image/fetch/$s_!0aOO!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F695b4fc5-289b-4bb6-bd99-0c84b1015e71_853x352.png 1456w\\\" sizes=\\\"100vw\\\"><img src=\\\"https://substackcdn.com/image/fetch/$s_!0aOO!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F695b4fc5-289b-4bb6-bd99-0c84b1015e71_853x352.png\\\" width=\\\"853\\\" height=\\\"352\\\" data-attrs=\\\"{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/695b4fc5-289b-4bb6-bd99-0c84b1015e71_853x352.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:352,&quot;width&quot;:853,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:41304,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}\\\" class=\\\"sizing-normal\\\" alt=\\\"\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!0aOO!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F695b4fc5-289b-4bb6-bd99-0c84b1015e71_853x352.png 424w, https://substackcdn.com/image/fetch/$s_!0aOO!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F695b4fc5-289b-4bb6-bd99-0c84b1015e71_853x352.png 848w, https://substackcdn.com/image/fetch/$s_!0aOO!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F695b4fc5-289b-4bb6-bd99-0c84b1015e71_853x352.png 1272w, https://substackcdn.com/image/fetch/$s_!0aOO!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F695b4fc5-289b-4bb6-bd99-0c84b1015e71_853x352.png 1456w\\\" sizes=\\\"100vw\\\" loading=\\\"lazy\\\"></picture><div class=\\\"image-link-expand\\\"><div class=\\\"pencraft pc-display-flex pc-gap-8 pc-reset\\\"><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container restack-image\\\"><svg aria-hidden=\\\"true\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 20 20\\\" fill=\\\"none\\\" stroke-width=\\\"1.5\\\" stroke=\\\"var(--color-fg-primary)\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><g><path d=\\\"M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882\\\"></path></g></svg></button><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container view-image\\\"><svg xmlns=\\\"http://www.w3.org/2000/svg\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 24 24\\\" fill=\\\"none\\\" stroke=\\\"currentColor\\\" stroke-width=\\\"2\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" class=\\\"lucide lucide-maximize2 lucide-maximize-2\\\"><polyline points=\\\"15 3 21 3 21 9\\\"></polyline><polyline points=\\\"9 21 3 21 3 15\\\"></polyline><line x1=\\\"21\\\" x2=\\\"14\\\" y1=\\\"3\\\" y2=\\\"10\\\"></line><line x1=\\\"3\\\" x2=\\\"10\\\" y1=\\\"21\\\" y2=\\\"14\\\"></line></svg></button></div></div></div></a></figure></div><p>However, I would have preferred a percentage slider as implemented in <a href=\\\"https://slc.alexewerlof.com/\\\">SLC</a> because unlike other settings, this one can only be between 0-100 (typically above 90%).</p><div class=\\\"captioned-image-container\\\"><figure><a class=\\\"image-link image2 is-viewable-img\\\" target=\\\"_blank\\\" href=\\\"https://substackcdn.com/image/fetch/$s_!Wiob!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F80edfbe8-d0c6-4971-9d71-cb3b652ed296_570x261.png\\\" data-component-name=\\\"Image2ToDOM\\\"><div class=\\\"image2-inset\\\"><picture><source type=\\\"image/webp\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!Wiob!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F80edfbe8-d0c6-4971-9d71-cb3b652ed296_570x261.png 424w, https://substackcdn.com/image/fetch/$s_!Wiob!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F80edfbe8-d0c6-4971-9d71-cb3b652ed296_570x261.png 848w, https://substackcdn.com/image/fetch/$s_!Wiob!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F80edfbe8-d0c6-4971-9d71-cb3b652ed296_570x261.png 1272w, https://substackcdn.com/image/fetch/$s_!Wiob!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F80edfbe8-d0c6-4971-9d71-cb3b652ed296_570x261.png 1456w\\\" sizes=\\\"100vw\\\"><img src=\\\"https://substackcdn.com/image/fetch/$s_!Wiob!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F80edfbe8-d0c6-4971-9d71-cb3b652ed296_570x261.png\\\" width=\\\"570\\\" height=\\\"261\\\" 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https://substackcdn.com/image/fetch/$s_!Wiob!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F80edfbe8-d0c6-4971-9d71-cb3b652ed296_570x261.png 848w, https://substackcdn.com/image/fetch/$s_!Wiob!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F80edfbe8-d0c6-4971-9d71-cb3b652ed296_570x261.png 1272w, https://substackcdn.com/image/fetch/$s_!Wiob!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F80edfbe8-d0c6-4971-9d71-cb3b652ed296_570x261.png 1456w\\\" sizes=\\\"100vw\\\" loading=\\\"lazy\\\"></picture><div class=\\\"image-link-expand\\\"><div class=\\\"pencraft pc-display-flex pc-gap-8 pc-reset\\\"><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container restack-image\\\"><svg aria-hidden=\\\"true\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 20 20\\\" fill=\\\"none\\\" stroke-width=\\\"1.5\\\" stroke=\\\"var(--color-fg-primary)\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><g><path d=\\\"M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882\\\"></path></g></svg></button><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container view-image\\\"><svg xmlns=\\\"http://www.w3.org/2000/svg\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 24 24\\\" fill=\\\"none\\\" stroke=\\\"currentColor\\\" stroke-width=\\\"2\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" class=\\\"lucide lucide-maximize2 lucide-maximize-2\\\"><polyline points=\\\"15 3 21 3 21 9\\\"></polyline><polyline points=\\\"9 21 3 21 3 15\\\"></polyline><line x1=\\\"21\\\" x2=\\\"14\\\" y1=\\\"3\\\" y2=\\\"10\\\"></line><line x1=\\\"3\\\" x2=\\\"10\\\" y1=\\\"21\\\" y2=\\\"14\\\"></line></svg></button></div></div></div></a></figure></div><p>This is absolutely not a deal-breaker, but what <em>is</em> a deal-breaker is the fact that you can set the SLO to 100% and it doesn\u2019t even complain! \uD83D\uDE31</p><div class=\\\"captioned-image-container\\\"><figure><a class=\\\"image-link image2\\\" target=\\\"_blank\\\" href=\\\"https://substackcdn.com/image/fetch/$s_!kcik!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F55720e16-ee7f-4600-aad8-da921e956f20_838x216.png\\\" data-component-name=\\\"Image2ToDOM\\\"><div class=\\\"image2-inset\\\"><picture><source type=\\\"image/webp\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!kcik!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F55720e16-ee7f-4600-aad8-da921e956f20_838x216.png 424w, https://substackcdn.com/image/fetch/$s_!kcik!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F55720e16-ee7f-4600-aad8-da921e956f20_838x216.png 848w, https://substackcdn.com/image/fetch/$s_!kcik!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F55720e16-ee7f-4600-aad8-da921e956f20_838x216.png 1272w, https://substackcdn.com/image/fetch/$s_!kcik!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F55720e16-ee7f-4600-aad8-da921e956f20_838x216.png 1456w\\\" sizes=\\\"100vw\\\"><img src=\\\"https://substackcdn.com/image/fetch/$s_!kcik!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F55720e16-ee7f-4600-aad8-da921e956f20_838x216.png\\\" width=\\\"838\\\" height=\\\"216\\\" data-attrs=\\\"{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/55720e16-ee7f-4600-aad8-da921e956f20_838x216.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:216,&quot;width&quot;:838,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:33448,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}\\\" class=\\\"sizing-normal\\\" alt=\\\"\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!kcik!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F55720e16-ee7f-4600-aad8-da921e956f20_838x216.png 424w, https://substackcdn.com/image/fetch/$s_!kcik!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F55720e16-ee7f-4600-aad8-da921e956f20_838x216.png 848w, https://substackcdn.com/image/fetch/$s_!kcik!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F55720e16-ee7f-4600-aad8-da921e956f20_838x216.png 1272w, https://substackcdn.com/image/fetch/$s_!kcik!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F55720e16-ee7f-4600-aad8-da921e956f20_838x216.png 1456w\\\" sizes=\\\"100vw\\\" loading=\\\"lazy\\\"></picture><div></div></div></a></figure></div><p>However, setting it to 110% seems to kick in the validation mechanism:</p><div class=\\\"captioned-image-container\\\"><figure><a class=\\\"image-link image2 is-viewable-img\\\" target=\\\"_blank\\\" href=\\\"https://substackcdn.com/image/fetch/$s_!yN8x!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F18f04d6a-e7db-4f67-869f-7be19880922d_838x256.png\\\" data-component-name=\\\"Image2ToDOM\\\"><div class=\\\"image2-inset\\\"><picture><source type=\\\"image/webp\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!yN8x!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F18f04d6a-e7db-4f67-869f-7be19880922d_838x256.png 424w, https://substackcdn.com/image/fetch/$s_!yN8x!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F18f04d6a-e7db-4f67-869f-7be19880922d_838x256.png 848w, https://substackcdn.com/image/fetch/$s_!yN8x!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F18f04d6a-e7db-4f67-869f-7be19880922d_838x256.png 1272w, https://substackcdn.com/image/fetch/$s_!yN8x!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F18f04d6a-e7db-4f67-869f-7be19880922d_838x256.png 1456w\\\" sizes=\\\"100vw\\\"><img src=\\\"https://substackcdn.com/image/fetch/$s_!yN8x!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F18f04d6a-e7db-4f67-869f-7be19880922d_838x256.png\\\" width=\\\"838\\\" height=\\\"256\\\" data-attrs=\\\"{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/18f04d6a-e7db-4f67-869f-7be19880922d_838x256.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:256,&quot;width&quot;:838,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:37512,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}\\\" class=\\\"sizing-normal\\\" alt=\\\"\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!yN8x!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F18f04d6a-e7db-4f67-869f-7be19880922d_838x256.png 424w, https://substackcdn.com/image/fetch/$s_!yN8x!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F18f04d6a-e7db-4f67-869f-7be19880922d_838x256.png 848w, https://substackcdn.com/image/fetch/$s_!yN8x!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F18f04d6a-e7db-4f67-869f-7be19880922d_838x256.png 1272w, https://substackcdn.com/image/fetch/$s_!yN8x!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F18f04d6a-e7db-4f67-869f-7be19880922d_838x256.png 1456w\\\" sizes=\\\"100vw\\\" loading=\\\"lazy\\\"></picture><div class=\\\"image-link-expand\\\"><div class=\\\"pencraft pc-display-flex pc-gap-8 pc-reset\\\"><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container restack-image\\\"><svg aria-hidden=\\\"true\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 20 20\\\" fill=\\\"none\\\" stroke-width=\\\"1.5\\\" stroke=\\\"var(--color-fg-primary)\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><g><path d=\\\"M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882\\\"></path></g></svg></button><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container view-image\\\"><svg xmlns=\\\"http://www.w3.org/2000/svg\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 24 24\\\" fill=\\\"none\\\" stroke=\\\"currentColor\\\" stroke-width=\\\"2\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" class=\\\"lucide lucide-maximize2 lucide-maximize-2\\\"><polyline points=\\\"15 3 21 3 21 9\\\"></polyline><polyline points=\\\"9 21 3 21 3 15\\\"></polyline><line x1=\\\"21\\\" x2=\\\"14\\\" y1=\\\"3\\\" y2=\\\"10\\\"></line><line x1=\\\"3\\\" x2=\\\"10\\\" y1=\\\"21\\\" y2=\\\"14\\\"></line></svg></button></div></div></div></a></figure></div><p>Although they still show an error budget of -10%? Is that a budget or giveaway? \uD83E\uDD11</p><p>Personally, I\u2019d prefer the UI to scream if the value is too close to 100%. For example, SLC shows an error with a link to <a href=\\\"https://blog.alexewerlof.com/p/10x9\\\">the rule of 10x/9</a>:</p><div class=\\\"captioned-image-container\\\"><figure><a class=\\\"image-link image2 is-viewable-img\\\" target=\\\"_blank\\\" href=\\\"https://substackcdn.com/image/fetch/$s_!QcvL!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F2bc75a0f-c723-4340-9a3b-8123657d9a71_570x372.png\\\" data-component-name=\\\"Image2ToDOM\\\"><div class=\\\"image2-inset\\\"><picture><source type=\\\"image/webp\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!QcvL!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F2bc75a0f-c723-4340-9a3b-8123657d9a71_570x372.png 424w, https://substackcdn.com/image/fetch/$s_!QcvL!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F2bc75a0f-c723-4340-9a3b-8123657d9a71_570x372.png 848w, https://substackcdn.com/image/fetch/$s_!QcvL!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F2bc75a0f-c723-4340-9a3b-8123657d9a71_570x372.png 1272w, https://substackcdn.com/image/fetch/$s_!QcvL!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F2bc75a0f-c723-4340-9a3b-8123657d9a71_570x372.png 1456w\\\" sizes=\\\"100vw\\\"><img src=\\\"https://substackcdn.com/image/fetch/$s_!QcvL!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F2bc75a0f-c723-4340-9a3b-8123657d9a71_570x372.png\\\" width=\\\"570\\\" height=\\\"372\\\" data-attrs=\\\"{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/2bc75a0f-c723-4340-9a3b-8123657d9a71_570x372.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:372,&quot;width&quot;:570,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:30641,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}\\\" class=\\\"sizing-normal\\\" alt=\\\"\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!QcvL!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F2bc75a0f-c723-4340-9a3b-8123657d9a71_570x372.png 424w, https://substackcdn.com/image/fetch/$s_!QcvL!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F2bc75a0f-c723-4340-9a3b-8123657d9a71_570x372.png 848w, https://substackcdn.com/image/fetch/$s_!QcvL!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F2bc75a0f-c723-4340-9a3b-8123657d9a71_570x372.png 1272w, https://substackcdn.com/image/fetch/$s_!QcvL!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F2bc75a0f-c723-4340-9a3b-8123657d9a71_570x372.png 1456w\\\" sizes=\\\"100vw\\\" loading=\\\"lazy\\\"></picture><div class=\\\"image-link-expand\\\"><div class=\\\"pencraft pc-display-flex pc-gap-8 pc-reset\\\"><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container restack-image\\\"><svg aria-hidden=\\\"true\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 20 20\\\" fill=\\\"none\\\" stroke-width=\\\"1.5\\\" stroke=\\\"var(--color-fg-primary)\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><g><path d=\\\"M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882\\\"></path></g></svg></button><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container view-image\\\"><svg xmlns=\\\"http://www.w3.org/2000/svg\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 24 24\\\" fill=\\\"none\\\" stroke=\\\"currentColor\\\" stroke-width=\\\"2\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" class=\\\"lucide lucide-maximize2 lucide-maximize-2\\\"><polyline points=\\\"15 3 21 3 21 9\\\"></polyline><polyline points=\\\"9 21 3 21 3 15\\\"></polyline><line x1=\\\"21\\\" x2=\\\"14\\\" y1=\\\"3\\\" y2=\\\"10\\\"></line><line x1=\\\"3\\\" x2=\\\"10\\\" y1=\\\"21\\\" y2=\\\"14\\\"></line></svg></button></div></div></div></a></figure></div><p>Picking an unrealistic value like 100% can negatively impact the alerting experience or deployment frequency (100% is totally fine for <a href=\\\"https://blog.alexewerlof.com/p/sls\\\">SLS</a> but not <a href=\\\"https://blog.alexewerlof.com/p/slo\\\">SLO</a>).</p><p>That\u2019s one reason that SLC exists: to set <em>reasonable</em> expectations.</p><p>Moving on. Another aspect of Grafana\u2019s Service Level implementation that I absolutely love is their categorization mechanism:</p><ul><li><p>You can put the SLO in a folder</p></li><li><p>It to a team name</p></li><li><p>And define custom labels for it (both Datadog and Elastic have this feature)</p></li></ul><div class=\\\"captioned-image-container\\\"><figure><a class=\\\"image-link image2 is-viewable-img\\\" target=\\\"_blank\\\" href=\\\"https://substackcdn.com/image/fetch/$s_!wxgv!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F061be76e-6b70-4177-9fd3-480f09749aa0_851x709.png\\\" data-component-name=\\\"Image2ToDOM\\\"><div class=\\\"image2-inset\\\"><picture><source type=\\\"image/webp\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!wxgv!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F061be76e-6b70-4177-9fd3-480f09749aa0_851x709.png 424w, https://substackcdn.com/image/fetch/$s_!wxgv!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F061be76e-6b70-4177-9fd3-480f09749aa0_851x709.png 848w, https://substackcdn.com/image/fetch/$s_!wxgv!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F061be76e-6b70-4177-9fd3-480f09749aa0_851x709.png 1272w, https://substackcdn.com/image/fetch/$s_!wxgv!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F061be76e-6b70-4177-9fd3-480f09749aa0_851x709.png 1456w\\\" sizes=\\\"100vw\\\"><img src=\\\"https://substackcdn.com/image/fetch/$s_!wxgv!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F061be76e-6b70-4177-9fd3-480f09749aa0_851x709.png\\\" width=\\\"851\\\" height=\\\"709\\\" data-attrs=\\\"{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/061be76e-6b70-4177-9fd3-480f09749aa0_851x709.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:709,&quot;width&quot;:851,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:78684,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}\\\" class=\\\"sizing-normal\\\" alt=\\\"\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!wxgv!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F061be76e-6b70-4177-9fd3-480f09749aa0_851x709.png 424w, https://substackcdn.com/image/fetch/$s_!wxgv!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F061be76e-6b70-4177-9fd3-480f09749aa0_851x709.png 848w, https://substackcdn.com/image/fetch/$s_!wxgv!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F061be76e-6b70-4177-9fd3-480f09749aa0_851x709.png 1272w, https://substackcdn.com/image/fetch/$s_!wxgv!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F061be76e-6b70-4177-9fd3-480f09749aa0_851x709.png 1456w\\\" sizes=\\\"100vw\\\" loading=\\\"lazy\\\"></picture><div class=\\\"image-link-expand\\\"><div class=\\\"pencraft pc-display-flex pc-gap-8 pc-reset\\\"><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container restack-image\\\"><svg aria-hidden=\\\"true\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 20 20\\\" fill=\\\"none\\\" stroke-width=\\\"1.5\\\" stroke=\\\"var(--color-fg-primary)\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><g><path d=\\\"M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882\\\"></path></g></svg></button><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container view-image\\\"><svg xmlns=\\\"http://www.w3.org/2000/svg\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 24 24\\\" fill=\\\"none\\\" stroke=\\\"currentColor\\\" stroke-width=\\\"2\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" class=\\\"lucide lucide-maximize2 lucide-maximize-2\\\"><polyline points=\\\"15 3 21 3 21 9\\\"></polyline><polyline points=\\\"9 21 3 21 3 15\\\"></polyline><line x1=\\\"21\\\" x2=\\\"14\\\" y1=\\\"3\\\" y2=\\\"10\\\"></line><line x1=\\\"3\\\" x2=\\\"10\\\" y1=\\\"21\\\" y2=\\\"14\\\"></line></svg></button></div></div></div></a></figure></div><p>These features make it easier to manage SLOs across a large organization, which is exactly the type of challenge I am dealing with. Kudos for that.</p><p>The 4th step of defining a SLO in Grafana is Alerting.</p><div class=\\\"captioned-image-container\\\"><figure><a class=\\\"image-link image2 is-viewable-img\\\" target=\\\"_blank\\\" href=\\\"https://substackcdn.com/image/fetch/$s_!zTYk!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F969281b4-9347-4cdf-b7f7-30aeec2c58b3_851x631.png\\\" data-component-name=\\\"Image2ToDOM\\\"><div class=\\\"image2-inset\\\"><picture><source type=\\\"image/webp\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!zTYk!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F969281b4-9347-4cdf-b7f7-30aeec2c58b3_851x631.png 424w, https://substackcdn.com/image/fetch/$s_!zTYk!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F969281b4-9347-4cdf-b7f7-30aeec2c58b3_851x631.png 848w, https://substackcdn.com/image/fetch/$s_!zTYk!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F969281b4-9347-4cdf-b7f7-30aeec2c58b3_851x631.png 1272w, https://substackcdn.com/image/fetch/$s_!zTYk!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F969281b4-9347-4cdf-b7f7-30aeec2c58b3_851x631.png 1456w\\\" sizes=\\\"100vw\\\"><img src=\\\"https://substackcdn.com/image/fetch/$s_!zTYk!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F969281b4-9347-4cdf-b7f7-30aeec2c58b3_851x631.png\\\" width=\\\"851\\\" height=\\\"631\\\" data-attrs=\\\"{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/969281b4-9347-4cdf-b7f7-30aeec2c58b3_851x631.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:631,&quot;width&quot;:851,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:75876,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}\\\" class=\\\"sizing-normal\\\" alt=\\\"\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!zTYk!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F969281b4-9347-4cdf-b7f7-30aeec2c58b3_851x631.png 424w, https://substackcdn.com/image/fetch/$s_!zTYk!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F969281b4-9347-4cdf-b7f7-30aeec2c58b3_851x631.png 848w, https://substackcdn.com/image/fetch/$s_!zTYk!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F969281b4-9347-4cdf-b7f7-30aeec2c58b3_851x631.png 1272w, https://substackcdn.com/image/fetch/$s_!zTYk!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F969281b4-9347-4cdf-b7f7-30aeec2c58b3_851x631.png 1456w\\\" sizes=\\\"100vw\\\" loading=\\\"lazy\\\"></picture><div class=\\\"image-link-expand\\\"><div class=\\\"pencraft pc-display-flex pc-gap-8 pc-reset\\\"><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container restack-image\\\"><svg aria-hidden=\\\"true\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 20 20\\\" fill=\\\"none\\\" stroke-width=\\\"1.5\\\" stroke=\\\"var(--color-fg-primary)\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><g><path d=\\\"M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882\\\"></path></g></svg></button><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container view-image\\\"><svg xmlns=\\\"http://www.w3.org/2000/svg\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 24 24\\\" fill=\\\"none\\\" stroke=\\\"currentColor\\\" stroke-width=\\\"2\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" class=\\\"lucide lucide-maximize2 lucide-maximize-2\\\"><polyline points=\\\"15 3 21 3 21 9\\\"></polyline><polyline points=\\\"9 21 3 21 3 15\\\"></polyline><line x1=\\\"21\\\" x2=\\\"14\\\" y1=\\\"3\\\" y2=\\\"10\\\"></line><line x1=\\\"3\\\" x2=\\\"10\\\" y1=\\\"21\\\" y2=\\\"14\\\"></line></svg></button></div></div></div></a></figure></div><p>There are two predefined alerting rules to pick from:</p><ul><li><p>Fast-burn alert has 2 rules:</p><ul><li><p>Burn Rate: 14.4x</p><ul><li><p>Long lookback window: 1 hour</p></li><li><p>Short lookback window: 5 minutes</p></li></ul></li><li><p>Burn Rate: 6x</p><ul><li><p>Long lookback window: 6 hours</p></li><li><p>Short lookback window: 30 minutes</p></li></ul></li></ul></li><li><p>Slow-burn alert also has 2 rules:</p><ul><li><p>Burn Rate: 3x</p><ul><li><p>Long lookback window: 1 day</p></li><li><p>Short lookback window: 2 hours</p></li></ul></li><li><p>Burn Rate: 1x</p><ul><li><p>Long lookback window: 3 days</p></li><li><p>Short lookback window: 6 hours</p></li></ul></li></ul></li></ul><p>Apart from the 3x rule, the rest comply with <a href=\\\"https://sre.google/workbook/alerting-on-slos/\\\">Google\u2019s recommendation</a>:</p><div class=\\\"captioned-image-container\\\"><figure><a class=\\\"image-link image2 is-viewable-img\\\" target=\\\"_blank\\\" href=\\\"https://substackcdn.com/image/fetch/$s_!FVzx!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb38333a8-7f97-4459-b393-a8b2e065fae2_946x438.png\\\" data-component-name=\\\"Image2ToDOM\\\"><div class=\\\"image2-inset\\\"><picture><source type=\\\"image/webp\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!FVzx!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb38333a8-7f97-4459-b393-a8b2e065fae2_946x438.png 424w, https://substackcdn.com/image/fetch/$s_!FVzx!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb38333a8-7f97-4459-b393-a8b2e065fae2_946x438.png 848w, https://substackcdn.com/image/fetch/$s_!FVzx!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb38333a8-7f97-4459-b393-a8b2e065fae2_946x438.png 1272w, https://substackcdn.com/image/fetch/$s_!FVzx!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb38333a8-7f97-4459-b393-a8b2e065fae2_946x438.png 1456w\\\" sizes=\\\"100vw\\\"><img src=\\\"https://substackcdn.com/image/fetch/$s_!FVzx!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb38333a8-7f97-4459-b393-a8b2e065fae2_946x438.png\\\" width=\\\"946\\\" height=\\\"438\\\" data-attrs=\\\"{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/b38333a8-7f97-4459-b393-a8b2e065fae2_946x438.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:438,&quot;width&quot;:946,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:45963,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}\\\" class=\\\"sizing-normal\\\" alt=\\\"\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!FVzx!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb38333a8-7f97-4459-b393-a8b2e065fae2_946x438.png 424w, https://substackcdn.com/image/fetch/$s_!FVzx!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb38333a8-7f97-4459-b393-a8b2e065fae2_946x438.png 848w, https://substackcdn.com/image/fetch/$s_!FVzx!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb38333a8-7f97-4459-b393-a8b2e065fae2_946x438.png 1272w, https://substackcdn.com/image/fetch/$s_!FVzx!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb38333a8-7f97-4459-b393-a8b2e065fae2_946x438.png 1456w\\\" sizes=\\\"100vw\\\" loading=\\\"lazy\\\"></picture><div class=\\\"image-link-expand\\\"><div class=\\\"pencraft pc-display-flex pc-gap-8 pc-reset\\\"><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container restack-image\\\"><svg aria-hidden=\\\"true\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 20 20\\\" fill=\\\"none\\\" stroke-width=\\\"1.5\\\" stroke=\\\"var(--color-fg-primary)\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><g><path d=\\\"M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882\\\"></path></g></svg></button><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container view-image\\\"><svg xmlns=\\\"http://www.w3.org/2000/svg\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 24 24\\\" fill=\\\"none\\\" stroke=\\\"currentColor\\\" stroke-width=\\\"2\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" class=\\\"lucide lucide-maximize2 lucide-maximize-2\\\"><polyline points=\\\"15 3 21 3 21 9\\\"></polyline><polyline points=\\\"9 21 3 21 3 15\\\"></polyline><line x1=\\\"21\\\" x2=\\\"14\\\" y1=\\\"3\\\" y2=\\\"10\\\"></line><line x1=\\\"3\\\" x2=\\\"10\\\" y1=\\\"21\\\" y2=\\\"14\\\"></line></svg></button></div></div></div></a></figure></div><p>Notice that Grafana does not provide a setting for adjusting the percentage of error budget that is allowed to be consumed before triggering the alert. That\u2019s because their settings are primarily focused on the lookback window and burn rate.</p><p>I would prefer working with the percentages because they\u2019re easier to reason about than a time period.</p><p>Which one would you pick:</p><ul><li><p>Trigger an alert after burning 2% of error budget at +14.4x</p></li><li><p>Trigger an alert after burning the error budget at +14.4x over the last 1h and still burning in the last 5 minutes</p></li></ul><p>The time-based settings are more sensible for the time-based SLIs \u2014which as we discussed aren\u2019t explicitly supported by Grafana. This is just confusing to me.</p><p>Another confusing option is the <em>Minimum Failure Threshold</em>:</p><div class=\\\"captioned-image-container\\\"><figure><a class=\\\"image-link image2 is-viewable-img\\\" target=\\\"_blank\\\" href=\\\"https://substackcdn.com/image/fetch/$s_!ypZ5!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F7bdd06b6-ece5-41a0-9cd7-8d13bb394ba0_826x887.png\\\" data-component-name=\\\"Image2ToDOM\\\"><div class=\\\"image2-inset\\\"><picture><source type=\\\"image/webp\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!ypZ5!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F7bdd06b6-ece5-41a0-9cd7-8d13bb394ba0_826x887.png 424w, https://substackcdn.com/image/fetch/$s_!ypZ5!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F7bdd06b6-ece5-41a0-9cd7-8d13bb394ba0_826x887.png 848w, https://substackcdn.com/image/fetch/$s_!ypZ5!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F7bdd06b6-ece5-41a0-9cd7-8d13bb394ba0_826x887.png 1272w, https://substackcdn.com/image/fetch/$s_!ypZ5!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F7bdd06b6-ece5-41a0-9cd7-8d13bb394ba0_826x887.png 1456w\\\" sizes=\\\"100vw\\\"><img src=\\\"https://substackcdn.com/image/fetch/$s_!ypZ5!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F7bdd06b6-ece5-41a0-9cd7-8d13bb394ba0_826x887.png\\\" width=\\\"826\\\" height=\\\"887\\\" data-attrs=\\\"{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/7bdd06b6-ece5-41a0-9cd7-8d13bb394ba0_826x887.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:887,&quot;width&quot;:826,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:88424,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}\\\" class=\\\"sizing-normal\\\" alt=\\\"\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!ypZ5!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F7bdd06b6-ece5-41a0-9cd7-8d13bb394ba0_826x887.png 424w, https://substackcdn.com/image/fetch/$s_!ypZ5!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F7bdd06b6-ece5-41a0-9cd7-8d13bb394ba0_826x887.png 848w, https://substackcdn.com/image/fetch/$s_!ypZ5!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F7bdd06b6-ece5-41a0-9cd7-8d13bb394ba0_826x887.png 1272w, https://substackcdn.com/image/fetch/$s_!ypZ5!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F7bdd06b6-ece5-41a0-9cd7-8d13bb394ba0_826x887.png 1456w\\\" sizes=\\\"100vw\\\" loading=\\\"lazy\\\"></picture><div class=\\\"image-link-expand\\\"><div class=\\\"pencraft pc-display-flex pc-gap-8 pc-reset\\\"><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container restack-image\\\"><svg aria-hidden=\\\"true\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 20 20\\\" fill=\\\"none\\\" stroke-width=\\\"1.5\\\" stroke=\\\"var(--color-fg-primary)\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><g><path d=\\\"M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882\\\"></path></g></svg></button><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container view-image\\\"><svg xmlns=\\\"http://www.w3.org/2000/svg\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 24 24\\\" fill=\\\"none\\\" stroke=\\\"currentColor\\\" stroke-width=\\\"2\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" class=\\\"lucide lucide-maximize2 lucide-maximize-2\\\"><polyline points=\\\"15 3 21 3 21 9\\\"></polyline><polyline points=\\\"9 21 3 21 3 15\\\"></polyline><line x1=\\\"21\\\" x2=\\\"14\\\" y1=\\\"3\\\" y2=\\\"10\\\"></line><line x1=\\\"3\\\" x2=\\\"10\\\" y1=\\\"21\\\" y2=\\\"14\\\"></line></svg></button></div></div></div></a></figure></div><p>It is an <em>Advanced Option</em> allowing you to set the minimum number of failures required for the alert to fire. But I don\u2019t understand why it\u2019s necessary (I\u2019m guessing it was added as an after-thought due to problems with the purely time-based alerting options namely when there\u2019s not enough failures.</p><p>What is an alert without a notification? Unfortunately, the notification settings aren\u2019t part of the wizard. All you get is this:</p><div class=\\\"captioned-image-container\\\"><figure><a class=\\\"image-link image2\\\" target=\\\"_blank\\\" href=\\\"https://substackcdn.com/image/fetch/$s_!yCXr!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F080a20e9-2e4c-423d-bd1d-b71e62ecfdca_826x94.png\\\" data-component-name=\\\"Image2ToDOM\\\"><div class=\\\"image2-inset\\\"><picture><source type=\\\"image/webp\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!yCXr!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F080a20e9-2e4c-423d-bd1d-b71e62ecfdca_826x94.png 424w, https://substackcdn.com/image/fetch/$s_!yCXr!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F080a20e9-2e4c-423d-bd1d-b71e62ecfdca_826x94.png 848w, https://substackcdn.com/image/fetch/$s_!yCXr!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F080a20e9-2e4c-423d-bd1d-b71e62ecfdca_826x94.png 1272w, https://substackcdn.com/image/fetch/$s_!yCXr!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F080a20e9-2e4c-423d-bd1d-b71e62ecfdca_826x94.png 1456w\\\" sizes=\\\"100vw\\\"><img src=\\\"https://substackcdn.com/image/fetch/$s_!yCXr!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F080a20e9-2e4c-423d-bd1d-b71e62ecfdca_826x94.png\\\" width=\\\"826\\\" height=\\\"94\\\" data-attrs=\\\"{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/080a20e9-2e4c-423d-bd1d-b71e62ecfdca_826x94.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:94,&quot;width&quot;:826,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:18133,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}\\\" class=\\\"sizing-normal\\\" alt=\\\"\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!yCXr!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F080a20e9-2e4c-423d-bd1d-b71e62ecfdca_826x94.png 424w, https://substackcdn.com/image/fetch/$s_!yCXr!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F080a20e9-2e4c-423d-bd1d-b71e62ecfdca_826x94.png 848w, https://substackcdn.com/image/fetch/$s_!yCXr!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F080a20e9-2e4c-423d-bd1d-b71e62ecfdca_826x94.png 1272w, https://substackcdn.com/image/fetch/$s_!yCXr!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F080a20e9-2e4c-423d-bd1d-b71e62ecfdca_826x94.png 1456w\\\" sizes=\\\"100vw\\\" loading=\\\"lazy\\\"></picture><div></div></div></a></figure></div><p>If you click that link, you\u2019ll be thrown into the generic alerting menu. This makes it easier for Grafana implementation DRY-wise but breaks the nice flow of the wizard.</p><p>Fortunately, the SLO Alerts will use the default notification policy, which is a sensible choice.</p><p>Step 5 is a review screen so it could totally be a 4-step process.</p><p>I did not see a live view of the SLO settings, something that had a prominent place in both Elastic and Datadog SLO setup screen.</p><p>Notice how Grafana happily accepted my unrealistic SLO of 100% while highlighting a 0% error budget in green:</p><div class=\\\"captioned-image-container\\\"><figure><a class=\\\"image-link image2 is-viewable-img\\\" target=\\\"_blank\\\" href=\\\"https://substackcdn.com/image/fetch/$s_!0mZc!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F5a2b3a9a-6a9e-46be-95cf-0bd1d2bef276_851x847.png\\\" data-component-name=\\\"Image2ToDOM\\\"><div class=\\\"image2-inset\\\"><picture><source type=\\\"image/webp\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!0mZc!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F5a2b3a9a-6a9e-46be-95cf-0bd1d2bef276_851x847.png 424w, https://substackcdn.com/image/fetch/$s_!0mZc!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F5a2b3a9a-6a9e-46be-95cf-0bd1d2bef276_851x847.png 848w, https://substackcdn.com/image/fetch/$s_!0mZc!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F5a2b3a9a-6a9e-46be-95cf-0bd1d2bef276_851x847.png 1272w, https://substackcdn.com/image/fetch/$s_!0mZc!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F5a2b3a9a-6a9e-46be-95cf-0bd1d2bef276_851x847.png 1456w\\\" sizes=\\\"100vw\\\"><img src=\\\"https://substackcdn.com/image/fetch/$s_!0mZc!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F5a2b3a9a-6a9e-46be-95cf-0bd1d2bef276_851x847.png\\\" width=\\\"851\\\" height=\\\"847\\\" data-attrs=\\\"{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/5a2b3a9a-6a9e-46be-95cf-0bd1d2bef276_851x847.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:847,&quot;width&quot;:851,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:81647,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:null,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}\\\" class=\\\"sizing-normal\\\" alt=\\\"\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!0mZc!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F5a2b3a9a-6a9e-46be-95cf-0bd1d2bef276_851x847.png 424w, https://substackcdn.com/image/fetch/$s_!0mZc!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F5a2b3a9a-6a9e-46be-95cf-0bd1d2bef276_851x847.png 848w, https://substackcdn.com/image/fetch/$s_!0mZc!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F5a2b3a9a-6a9e-46be-95cf-0bd1d2bef276_851x847.png 1272w, https://substackcdn.com/image/fetch/$s_!0mZc!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F5a2b3a9a-6a9e-46be-95cf-0bd1d2bef276_851x847.png 1456w\\\" sizes=\\\"100vw\\\" loading=\\\"lazy\\\"></picture><div class=\\\"image-link-expand\\\"><div class=\\\"pencraft pc-display-flex pc-gap-8 pc-reset\\\"><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container restack-image\\\"><svg aria-hidden=\\\"true\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 20 20\\\" fill=\\\"none\\\" stroke-width=\\\"1.5\\\" stroke=\\\"var(--color-fg-primary)\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><g><path d=\\\"M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882\\\"></path></g></svg></button><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container view-image\\\"><svg xmlns=\\\"http://www.w3.org/2000/svg\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 24 24\\\" fill=\\\"none\\\" stroke=\\\"currentColor\\\" stroke-width=\\\"2\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" class=\\\"lucide lucide-maximize2 lucide-maximize-2\\\"><polyline points=\\\"15 3 21 3 21 9\\\"></polyline><polyline points=\\\"9 21 3 21 3 15\\\"></polyline><line x1=\\\"21\\\" x2=\\\"14\\\" y1=\\\"3\\\" y2=\\\"10\\\"></line><line x1=\\\"3\\\" x2=\\\"10\\\" y1=\\\"21\\\" y2=\\\"14\\\"></line></svg></button></div></div></div></a></figure></div><p>Fortunately, this should be very easy to fix: if it didn\u2019t allow me to type 100% in step 2, this wouldn\u2019t happen.</p><h1>Sum up</h1><p>Datadog has the best UX followed closely by Grafana. The reason Datadog wins the UX is their excellent documentation which honestly is a great learning resource whether you use their platform or not.</p><p>Elastic\u2019s UX looks similar to Datadog but more janky and less sensible copy. And short window is missing from the UI.</p><p>Grafana has the most complete options. It allows setting custom days for rolling windows but misses time-based SLIs.</p><p>Both Grafana and Datadog support setting SLOs on synthetic monitoring. I\u2019m guessing Elastic does too but I didn\u2019t try.</p><p>All 3 only support <a href=\\\"https://blog.alexewerlof.com/p/sli-heterogeneous-vs-homogeneous\\\">heterogenous SLIs</a>.</p><p>Datadog has the most awesome out-of-the-box SLO dashboards again followed closely by Grafana.</p><p>Alerting is a very important aspect of SLOs. Admittedly it is hard to get right and I have it in my backlog to explain in a separate blog post.</p><p class=\\\"button-wrapper\\\" data-attrs=\\\"{&quot;url&quot;:&quot;https://blog.alexewerlof.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe now&quot;,&quot;action&quot;:null,&quot;class&quot;:null}\\\" data-component-name=\\\"ButtonCreateButton\\\"><a class=\\\"button primary\\\" href=\\\"https://blog.alexewerlof.com/subscribe?\\\"><span>Subscribe now</span></a></p><p>Grafana has the best alerting setup for the mere fact that it is an integrated part of setting up the SLO. Both Datadog and Elastic require an extra step to set alerts.</p><p>Datadog and Elastic come second for different reasons:</p><ul><li><p>Datadog doesn\u2019t have good defaults</p></li><li><p>Elastic has nice defaults but misses key configuration options</p></li></ul><p>Personally, I prefer Grafana when it comes to the SLO implementation.</p><div><hr></div><p><em>These posts take anywhere from a few hours to a few days to ideate, draft, research, illustrate, edit, and publish. I pull these hours from my private time, vacation days and weekends.</em></p><p><em>Recently I went down in working hours and salary by 10% to be able to spend more time learning and sharing my experience with the public.</em></p><p><em><a href=\\\"https://blog.alexewerlof.com/p/faq#%C2%A7payment\\\">My monetization strategy</a>&nbsp;is to give away most content for free because I believe information should be free and accessible. You can support this cause by sparing a few bucks for a paid subscription. As a token of appreciation, you get access to the Pro-Tips sections (on some articles) as well as my online book&nbsp;<a href=\\\"https://blog.alexewerlof.com/p/rem\\\">Reliability Engineering Mindset</a>. Right now, you can get 20% off via&nbsp;<a href=\\\"https://blog.alexewerlof.com/protipsdiscount\\\">this link</a>. You can also <a href=\\\"https://blog.alexewerlof.com/leaderboard\\\">invite your friends</a> to gain free access or get a discounted group subscription. There\u2019s also a <a href=\\\"https://blog.alexewerlof.com/leaderboard\\\">referral bonus program to gain free subscriptions</a>.</em></p><p><em>Thanks in advance for helping these words reach further and impact the software engineering community.</em></p><div class=\\\"captioned-button-wrap\\\" data-attrs=\\\"{&quot;url&quot;:&quot;https://blog.alexewerlof.com/p/slo-elastic-datadog-grafana?utm_source=substack&utm_medium=email&utm_content=share&action=share&quot;,&quot;text&quot;:&quot;Share&quot;}\\\" data-component-name=\\\"CaptionedButtonToDOM\\\"><div class=\\\"preamble\\\"><p class=\\\"cta-caption\\\">If you find this post insightful, please share it in your circles to inspire others.</p></div><p class=\\\"button-wrapper\\\" data-attrs=\\\"{&quot;url&quot;:&quot;https://blog.alexewerlof.com/p/slo-elastic-datadog-grafana?utm_source=substack&utm_medium=email&utm_content=share&action=share&quot;,&quot;text&quot;:&quot;Share&quot;}\\\" data-component-name=\\\"ButtonCreateButton\\\"><a class=\\\"button primary\\\" href=\\\"https://blog.alexewerlof.com/p/slo-elastic-datadog-grafana?utm_source=substack&utm_medium=email&utm_content=share&action=share\\\"><span>Share</span></a></p></div>\",\"has_dynamic_content\":false,\"truncated_body_text\":\"I\u2019ve spent the past few years learning, teaching, and coding service levels. So I got curious to see how the well-known observability providers implement it.\",\"wordcount\":3304,\"post_preview_limit\":null,\"language\":\"en\",\"postTags\":[{\"id\":\"0d5fc1ef-0a33-44d4-8b59-9d5506064249\",\"publication_id\":1002265,\"name\":\"Grafana\",\"slug\":\"grafana\",\"hidden\":false},{\"id\":\"4fd37656-9275-4256-8b67-bd6a6564302c\",\"publication_id\":1002265,\"name\":\"Elastic \",\"slug\":\"elastic\",\"hidden\":false},{\"id\":\"534a54d4-65f3-4e24-88c0-c603442c7530\",\"publication_id\":1002265,\"name\":\"slo\",\"slug\":\"slo\",\"hidden\":false},{\"id\":\"a45421b0-09ff-425c-878e-ef75ae11d711\",\"publication_id\":1002265,\"name\":\"Datadog \",\"slug\":\"datadog\",\"hidden\":false},{\"id\":\"ae2bf941-bf61-45c2-a8b9-a6dc27247c3a\",\"publication_id\":1002265,\"name\":\"service levels\",\"slug\":\"service-levels\",\"hidden\":false}],\"postCountryBlocks\":[],\"headlineTest\":null,\"coverImagePalette\":{\"Vibrant\":{\"rgb\":[99,44,163],\"population\":587},\"DarkVibrant\":{\"rgb\":[4,20,44],\"population\":2241},\"LightVibrant\":{\"rgb\":[185.8173913043478,150.58550724637684,226.81449275362317],\"population\":0},\"Muted\":{\"rgb\":[73.17391304347824,32.52173913043479,120.4782608695652],\"population\":0},\"DarkMuted\":{\"rgb\":[12.749999999999982,63.749999999999986,140.25],\"population\":0},\"LightMuted\":{\"rgb\":[73.17391304347824,32.5217391304348,120.47826086956519],\"population\":0}},\"publishedBylines\":[{\"id\":87732486,\"name\":\"Alex Ewerl\u00F6f\",\"handle\":\"alexewerlof\",\"photo_url\":\"https://substackcdn.com/image/fetch/f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fbucketeer-e05bbc84-baa3-437e-9518-adb32be77984.s3.amazonaws.com%2Fpublic%2Fimages%2Fe2713990-da82-481b-b579-01a7aaa5b85b_560x560.jpeg\",\"bio\":\"Writes about technical leadership, growth mindset, and system reliability engineering. 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This is a flaw they share with Datadog.\\n\\nWe create a burn rate rule with the sane defaults in the background based on your SLO. When you submit the SLO you should see a little notification like \\\"Burn rate rule created successfully\\\". In the screenshot you posted, there was a button that said \\\"Manage burn rate rule\\\", that's only active when the rule already exists. The \\\"Create burn rate rule\\\" link is also there because we allow users to create more that one burn rate rule per SLO. \\n\\nSince this is a new product for us, we are continually collecting feedback and applying it. Thank you for including us in the review, we are taking notes :) \",\"body_json\":{\"type\":\"doc\",\"attrs\":{\"schemaVersion\":\"v1\"},\"content\":[{\"type\":\"paragraph\",\"content\":[{\"type\":\"text\",\"text\":\"> Elastic does not create alerts by default despite me setting a target for the SLO. This is a flaw they share with Datadog.\"}]},{\"type\":\"paragraph\",\"content\":[{\"type\":\"text\",\"text\":\"We create a burn rate rule with the sane defaults in the background based on your SLO. When you submit the SLO you should see a little notification like \\\"Burn rate rule created successfully\\\". In the screenshot you posted, there was a button that said \\\"Manage burn rate rule\\\", that's only active when the rule already exists. The \\\"Create burn rate rule\\\" link is also there because we allow users to create more that one burn rate rule per SLO.\"}]},{\"type\":\"paragraph\",\"content\":[{\"type\":\"text\",\"text\":\"Since this is a new product for us, we are continually collecting feedback and applying it. Thank you for including us in the review, we are taking notes :)\"}]}]},\"publication_id\":1002265,\"post_id\":148723414,\"user_id\":2780361,\"ancestor_path\":\"\",\"type\":\"comment\",\"deleted\":false,\"date\":\"2024-09-13T16:44:29.212Z\",\"edited_at\":null,\"status\":\"published\",\"pinned_by_user_id\":null,\"restacks\":0,\"name\":\"Chris Cowan\",\"photo_url\":\"https://substackcdn.com/image/fetch/f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb096a170-9da9-4dac-b1b6-7479c8da9d68_1082x1082.jpeg\",\"handle\":\"simianhacker\",\"reactor_names\":[\"Alex Ewerl\u00F6f\"],\"reaction\":null,\"reactions\":{\"\u2764\":1},\"reaction_count\":1,\"children\":[],\"bans\":[],\"suppressed\":false,\"user_banned\":false,\"user_banned_for_comment\":false,\"user_slug\":\"simianhacker\",\"metadata\":{\"is_author\":false,\"membership_state\":null,\"eligibleForGift\":true},\"user_bestseller_tier\":null,\"can_dm\":true,\"userStatus\":{\"bestsellerTier\":null,\"subscriberTier\":null,\"leaderboard\":null,\"vip\":false,\"badge\":null,\"subscriber\":null},\"score\":6,\"children_count\":0,\"reported_by_user\":false,\"restacked\":false},{\"id\":68876892,\"body\":\"Thank you for this great writeup. I work on the SLO product at Grafana and appreciate the feedback in here, we'll review and look to address in future releases. \",\"body_json\":{\"type\":\"doc\",\"attrs\":{\"schemaVersion\":\"v1\"},\"content\":[{\"type\":\"paragraph\",\"content\":[{\"type\":\"text\",\"text\":\"Thank you for this great writeup. 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