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<h1 class="entry-title" itemprop="headline" ><a href="https://sreweekly.com/sre-weekly-issue-332/">SRE Weekly Issue #332</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-332/">July 31, 2022</a>
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<a href="https://sreweekly.com/sre-weekly-issue-332/" title="Permalink to SRE Weekly Issue #332" class="email_only">View on sreweekly.com</a>
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<h2 style="text-align: center;font-size: 80%;color: #909090;">A message from our sponsor, <a href="https://rootly.com/demo/?utm_source=sreweekly">Rootly</a>:</h2>
<p>Manage incidents directly from Slack with Rootly 🚒. Automate manual admin tasks like creating incident channel, Jira and Zoom, paging and adding responders, postmortem timeline, setting up reminders, and more. Book a demo (+ get a snazzy Rootly lego set):<br>
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<h2 class="wp-block-heading">Articles</h2>
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<div class="sreweekly-title"><a href="https://engineering.razorpay.com/how-razorpays-notification-service-handles-increasing-load-f787623a490f" target="_blank" rel="noopener">How Razorpay’s Notification Service Handles Increasing Load</a></div>
<div class="sreweekly-description">
<p>Their notification service had complex load characteristics that made scaling up a tricky proposition.</p>
<p>&nbsp;&nbsp;<small>Anand Prakash — Razorpay</small></p>
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</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://about.gitlab.com/blog/2022/07/19/reducing-pager-fatigue-and-improving-on-call-life/" target="_blank" rel="noopener">How we improved on-call life by reducing pager noise</a></div>
<div class="sreweekly-description">
<p>Coalescing alerts and adding dependencies in AlertManager were the key to reducing this team&#8217;s excessive pager load.</p>
<p>&nbsp;&nbsp;<small>steveazz — GitLab</small></p>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://surfingcomplexity.blog/2022/07/23/whats-allowed-to-count-as-a-cause-alerrt-edition/" target="_blank" rel="noopener">What’s allowed to count as a cause: ALERRT edition</a></div>
<div class="sreweekly-description">
<p>Lorin Hochstein has started a <a href="https://surfingcomplexity.blog/2022/07/23/uvalde/">series</a> of blog posts on what we can learn about incident response from the Uvalde school shooting tragedy in the US. This article looks at how an organization&#8217;s perspective can affect their retrospective incident analysis.</p>
<p>&nbsp;&nbsp;<small>Lorin Hochstein</small></p>
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</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://surfingcomplexity.blog/2022/07/23/the-fog-of-war-in-uvalde/" target="_blank" rel="noopener">The fog of war in Uvalde</a></div>
<div class="sreweekly-description">
<blockquote>
<p>My claim here is that we should assume the officer is telling the truth and was acting reasonably if we want to understand how these types of failure modes can happen.</p>
</blockquote>
<p>Every retrospective ever:</p>
<blockquote>
<p>We must assume that a person can act reasonably and still come to the wrong conclusion in order to make progress.</p>
</blockquote>
<p>&nbsp;&nbsp;<small>Lorin Hochstein</small></p>
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</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://jakub-m.github.io/2022/07/17/laport-clocks-formal.html" target="_blank" rel="noopener">User settings, Lamport clocks and lightweight formal methods</a></div>
<div class="sreweekly-description">
<p>How do you synchronize state between multiple browsers and a backend, and ensure that everyone&#8217;s state will eventually converge? These folks explain how they did it, and a bug they found through testing.</p>
<p>&nbsp;&nbsp;<small>Jakub Mikians — Airspace Intelligence</small></p>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://blog.danslimmon.com/2014/09/03/mttr-lower-isnt-always-better/" target="_blank" rel="noopener">MTTR: lower isn’t always better</a></div>
<div class="sreweekly-description">
<p>MTTR is a mean, so it doesn&#8217;t tell you anything about the <em>number</em> of incidents, among other potential pitfalls.</p>
<p>&nbsp;&nbsp;<small>Dan Slimmon</small></p>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://status.cloud.google.com/incidents/fmEL9i2fArADKawkZAa2" target="_blank" rel="noopener">Google Cloud Platform outage report: europe-west2 cooling failure</a></div>
<div class="sreweekly-description">
<p>Last week, I included a GCP outage in europe-west2. This week, Google posted this report about what went wrong, and it&#8217;s got layers.</p>
<p>Bonus: <a href="https://status.cloud.google.com/incidents/vLsxuKoRvykNHW3nnhsJ">another GCP outage report</a></p>
<p>&nbsp;&nbsp;<small>Google</small></p>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://engineering.fb.com/2022/07/25/production-engineering/its-time-to-leave-the-leap-second-in-the-past/" target="_blank" rel="noopener">It’s time to leave the leap second in the past</a></div>
<div class="sreweekly-description">
<p>Meta wants to do away with leap seconds, because they make it especially difficult to create reliable systems.</p>
<p>&nbsp;&nbsp;<small>Oleg Obleukhov and Ahmad Byagowi — Meta</small></p>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://incident.io/blog/pitfalls-of-post-mortems" target="_blank" rel="noopener">3 common pitfalls of post-mortems</a></div>
<div class="sreweekly-description">
<p>If you&#8217;re anywhere near incident analysis in your organization, you need to read this list.</p>
<p>&nbsp;&nbsp;<small>Milly Leadley — incident.io</small></p>
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