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<h1 class="entry-title" itemprop="headline" ><a href="https://sreweekly.com/sre-weekly-issue-203/">SRE Weekly Issue #203</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-203/">January 19, 2020</a>
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<a href="https://sreweekly.com/sre-weekly-issue-203/" title="Permalink to SRE Weekly Issue #203" class="email_only">View on sreweekly.com</a>
<div class="sreweekly-sponsor-message" style="border: 1px solid #b0b0b0; padding-left: 1rem; padding-right: 1rem; width: 80%; align: center; margin: 2rem auto 2rem auto;">
<h2 style="text-align: center; font-size: 80%; color: #909090;">A message from our sponsor, VictorOps:</h2>
<p>Bulkhead and sidecar application design patterns can be used to create more efficient incident response workflows for DevOps and IT operations. Learn more:</p>
<p><a href="https://go.victorops.com/sreweekly-bulkhead-and-sidecar-design-patterns">https://go.victorops.com/sreweekly-bulkhead-and-sidecar-design-patterns</a></p>
</div>
<h2>Articles</h2>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://www.blameless.com/5-best-practices-nailing-postmortems/" target="_blank">5 Example Postmortems &amp; Best Practices you can Start Using Today</a></div>
<div class="sreweekly-description">
<p>Spot-on advice for writing incident followups, citing examples of real write-ups that exhibit the techniques they recommend.</p>
<p><small>Hannah Culver — Blameless</small></p>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://www.pageittothelimit.com/oncall-nightmares-with-jay-gordon/" target="_blank">On-Call Nightmares With Jay Gordon</a></div>
<div class="sreweekly-description">
<blockquote><p>“The beautiful thing about going on-call is you get to go off-call. If you aren’t on-call, I have news for you &#8211; you’re always on-call”</p></blockquote>
<p><small>Jay Gordon — Page It to the Limit</small></p>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://segment.com/blog/separating-our-data-and-control-planes-with-ctlstore/" target="_blank">Serving 100µs reads with 100% availability</a></div>
<div class="sreweekly-description">
<p>This is a companion to last week&#8217;s article, <a href="https://medium.com/@rbranson/sharing-sqlite-databases-across-containers-is-surprisingly-brilliant-bacb8d753054">Sharing SQLite databases across containers is surprisingly brilliant</a>. This one explains the broader ctlstore system.</p>
<p><small>Rick Branson and Collin Van Dyck — Segment</small></p>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://pingcap.com/blog/chaos-mesh-your-chaos-engineering-solution-for-system-resiliency-on-kubernetes/" target="_blank">Chaos Mesh &#8211; Your Chaos Engineering Solution for System Resiliency on Kubernetes</a></div>
<div class="sreweekly-description">
<blockquote><p>Chaos Mesh is a versatile Chaos Engineering platform that features all-around fault injection methods for complex systems on Kubernetes, covering faults in Pod, network, file system, and even the kernel.</p></blockquote>
<p><small>Chengwen Yin — PingCAP</small></p>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://lorinhochstein.wordpress.com/2020/01/16/getting-into-peoples-heads-how-and-why-to-fake-it/" target="_blank">Getting into people&#8217;s heads: how and why to fake it</a></div>
<div class="sreweekly-description">
<p>Fake it &#8217;til you make it clear what motivated the decisions of incident responders.</p>
<p><small>Lorin Hochstein</small></p>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://cloud.google.com/blog/products/management-tools/using-deemed-slis-to-measure-customer-reliability/" target="_blank">Deemed SLIs to put SRE into practice</a></div>
<div class="sreweekly-description">
<p>When running a platform, pay attention to the experience of specific customers, says Google. That may mean inferring their metrics from your own if they haven&#8217;t shared their SLIs with you.</p>
<p><small>Adrian Hilton — Google</small></p>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://mads-hartmann.com/sre/2020/01/11/journey-into-observability-telemetry.html" target="_blank">Journey into Observability: Telemetry</a></div>
<div class="sreweekly-description">
<p>This article takes a stand against the &#8220;Three Pillars of Observability&#8221;.</p>
<blockquote><p>[&#8230;] focus on what kinds of questions you’re trying to answer and let that guide your choice of telemetry.</p></blockquote>
<p><small>Mads Hartmann</small></p>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://engineering.hellofresh.com/logging-rules-of-thumb-f6c0f71a2351" target="_blank">Logging: Rules of thumb</a></div>
<div class="sreweekly-description">
<p>My favorite recommendation is to make log messages &#8220;two-way greppable&#8221; — findable in logs and easy to tell exactly which part of the code it comes from.</p>
<p><small>Vladimir Garvardt — HelloFresh</small></p>
</div>
</div>
<h2>Outages</h2>
<ul class="sreweekly-outages">
<li><a href="https://www.dynstatus.com/incidents/skqzwmxrm5r7">Dyn Managed DNS</a></li>
<li><a href="https://www.google.com/appsstatus#hl=en&amp;v=issue&amp;sid=0&amp;iid=96fe23b95fd274fb8da5c8c4a46b5300">G Suite admin console</a></li>
<li><a href="https://wccftech.com/yes-whatsapp-is-down-right-now-some-users-cant-send-images-videos-voice-messages-at-all/">WhatsApp Gets its First Ever Outage in 2020, Only Text Service Working</a></li>
<li><a href="https://citizen.co.za/news/south-africa/2230330/failed-undersea-cables-leave-sa-with-slow-internet-no-twitter/">South Africa and other African countries</a>
<ul class="sreweekly-outage">
<li class="sreweekly-outage">An important undersea cable was severed.</li>
</ul>
</li>
<li><a href="https://www.npr.org/2020/01/13/795942049/u-s-drivers-license-network-goes-down-slowing-dmv-offices-around-the-nation">US Driver&#8217;s License system</a>
<ul class="sreweekly-outage">
<li class="sreweekly-outage">A downstream dependency of many US states&#8217; motor vehicle departments had an outage.</li>
</ul>
</li>
<li><a href="https://www.express.co.uk/life-style/science-technology/1229926/National-Lottery-down-app-website-not-working-EuroMillions">UK National Lottery</a></li>
<li><a href="https://www.thesun.co.uk/tech/10760068/spotify-down-not-working-play-offline/">Spotify</a></li>
<li><a href="https://digistatement.com/hootsuite-website-down-not-working/">HootSuite</a></li>
<li><a href="https://www.independent.co.uk/life-style/gadgets-and-tech/news/instagram-down-login-today-error-occurred-oops-not-working-server-status-a9282861.html">Instagram</a></li>
<li><a href="https://reddit.statuspage.io/incidents/mg76tn1003hw">Reddit</a></li>
<li><a href="https://twitter.com/LinkedInHelp/status/1217040453859717120">LinkedIn</a></li>
</ul>
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