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<h1 class="entry-title" itemprop="headline" ><a href="https://sreweekly.com/sre-weekly-issue-441/">SRE Weekly Issue #441</a></h1>
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<div class="entry-date" itemprop="datePublished" >
<i class="genericon genericon-day"></i><a class="updated" href="https://sreweekly.com/sre-weekly-issue-441/">September 8, 2024</a>
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<p><a class="email_only" href="https://sreweekly.com/sre-weekly-issue-441/">View on sreweekly.com</a></p>
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<h2 style="text-align: center;font-size: 80%;color: #909090;">A message from our sponsor, <a href="https://firehydrant.com/">FireHydrant</a>:</h2>
<p>FireHydrant has acquired Blameless! The addition of Blameless&#8217; enterprise capabilities combined with FireHydrant&#8217;s platform creates the most comprehensive enterprise incident management solution in the market.</p>
<p><a href="https://firehydrant.com/blog/press-release-firehydrant-acquires-blameless-to-further-solidify-enterprise/">https://firehydrant.com/blog/press-release-firehydrant-acquires-blameless-to-further-solidify-enterprise/</a></p>
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<div class="sreweekly-title"><a href="https://engineering.mixpanel.com/how-we-migrated-from-statsd-to-prometheus-in-one-month-fb973af124f5" target="_blank" rel="noopener">How We Migrated from StatsD to Prometheus in One Month</a></div>
<div class="sreweekly-description">
<blockquote>
<p>This post aims to shed some light on why we migrated to Prometheus, as well as outline some of the technical challenges we faced during the process.</p>
</blockquote>
<p>&nbsp;&nbsp;<small>Eddie Bracho &mdash; Mixpanel</small></p>
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<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://aws.amazon.com/message/073024/" target="_blank" rel="noopener">Summary of the AWS Service Event in the Northern Virginia (US-EAST-1) Region</a></div>
<div class="sreweekly-description">
<p>Amazon posted this thorough summary of a multi-service outage at the end of July. The impact stems from a complex distributed system failure in Kinesis.</p>
<p>  <small>Amazon</small></p>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://engineering.mixpanel.com/finding-and-optimizing-n-1-queries-on-a-relational-database-1ce02f1f2ffb" target="_blank" rel="noopener">Finding and optimizing N+1 queries on a relational database</a></div>
<div class="sreweekly-description">
<p>This team shows what they did to ferret out and eliminate occurrences of N+1 DB queries triggered by a single request in their Django app.</p>
<p>&nbsp;&nbsp;<small>Gonzalo Lopez &mdash; Mixpanel</small></p>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://incident.io/blog/building-on-call-our-observability-strategy" target="_blank" rel="noopener">Building On-call: Our observability strategy</a></div>
<div class="sreweekly-description">
<p>The folks at incident.io share about how they baked observability into the infrastructure for their new on-call tool.</p>
<p>Note for folks using screen readers: there&#8217;s a picture without alt-text that contains the following important text:</p>
<blockquote>
<ol>
<li>Overview dashboard</li>
<li>System dashboard</li>
<li>Logs</li>
<li>Tracing</li>
</ol>
</blockquote>
<p>It&#8217;s right after this sentence:</p>
<blockquote>
<p>Those pieces fit together something like this:</p>
</blockquote>
<p>&nbsp;&nbsp;<small>Martha Lambert &mdash; incident.io</small></p>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="http://notes.eatonphil.com/2024-08-20-deterministic-simulation-testing.html" target="_blank" rel="noopener">What&#8217;s the big deal about Deterministic Simulation Testing?</a></div>
<div class="sreweekly-description">
<p>An overview of DST, which was a new concept for me. It&#8217;s about running simulations to try to find faults in a distributed system.</p>
<p>&nbsp;&nbsp;<small>Phil Eaton</small></p>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://certomodo.substack.com/p/hot-take-you-build-it-you-run-it" target="_blank" rel="noopener">Hot take: you build it, you run it</a></div>
<div class="sreweekly-description">
<blockquote>
<p>If you build software that people depend on and are not operationally responsible for it (particularly on-call): you should be. 🛑</p>
</blockquote>
<p>I like the way this one draws from the author&#8217;s experience, plus the emphasis on feedback loops.</p>
<p>&nbsp;&nbsp;<small>Amin Astaneh</small></p>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://dzone.com/articles/overcoming-the-retry-dilemma-in-distributed-systems" target="_blank" rel="noopener">Overcome the Retry Dilemma in Distributed Systems</a></div>
<div class="sreweekly-description">
<blockquote>
<p>Retries help increase service availability. However, if not done right, they can have a devastating impact on the service and elongate recovery time.</p>
</blockquote>
<p>&nbsp;&nbsp;<small> Rajesh Pandey</small></p>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://www.honeycomb.io/blog/always-enable-keepalives" target="_blank" rel="noopener">Always. Enable. Keepalives.</a></div>
<div class="sreweekly-description">
<p>Keepalive pings are critical in any system that uses TCP, since connections can hang at any point. I&#8217;ve been meaning to write this one for years!</p>
<p>&nbsp;&nbsp;<small>Lex Neva &mdash; Honeycomb</small></p>
<p>&nbsp;&nbsp;<small><em>Full disclosure: Honeycomb is my employer.</em></small></p>
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