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<h1 class="entry-title" itemprop="headline" ><a href="https://sreweekly.com/sre-weekly-issue-500/">SRE Weekly Issue #500</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-500/">December 7, 2025</a>
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<p><a class="email_only" href="https://sreweekly.com/sre-weekly-issue-500/">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://fandf.co/4iGAYml">Depot</a>:</h2>
<p>Stop hunting through GitHub Actions logs. <a href="https://fandf.co/4iGAYml">Depot now offers powerful CI log search</a> across all your repositories and workflows. With smart filtering by timeframe, runner type, and keywords, you’ll have all the information at your fingertips to debug faster.</p>
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<p class="wp-block-paragraph">Wow, five hundred issues! I sent <a href="https://sreweekly.com/sre-weekly-issue-1/">the first issue of SRE Weekly</a> out almost exactly ten years ago. I assumed my little experiment would fairly quickly come to an end when I exhausted the supply of SRE-related articles.</p>
<p class="wp-block-paragraph">I needn&#8217;t have worried. Somehow, the authors I&#8217;ve featured here have continued to produce a seemingly endless stream of excellent articles. If anything, the pace has only picked up over time! A profound thank you to all of the authors, without whom this newsletter would be just an empty bulleted list.</p>
<p class="wp-block-paragraph">And thanks to you, dear readers, for making this worthwhile. Thanks for sharing the articles you find or write, I love receiving them! Thanks for the notes you send after an issue you particularly like, and the corrections too. Thanks for your kind well-wishes for my recent surgery, they meant a ton.</p>
<p class="wp-block-paragraph">Finally, thanks to my sponsors, whose support makes all this possible. If you see something interesting, please give it a click and check it out!</p>
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<div class="sreweekly-title"><a href="https://engineering.grab.com/ml-predictive-autoscaling-for-flink" target="_blank" rel="noopener">Machine-learning predictive autoscaling for Flink</a></div>
<div class="sreweekly-description">
<p>When a scale-up event actually causes increased resource usage for awhile, a standard auto-scaling algorithm can fail.</p>
<p>&nbsp;&nbsp;<small> Minh Nhat Nguyen, Shi Kai Ng, and Calvin Tran &mdash; Grab</small></p>
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<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://blog.railway.com/p/incident-report-oct-28th-2025" target="_blank" rel="noopener">[Railway] Incident Report: October 28th, 2025</a></div>
<div class="sreweekly-description">
<p>A database schema change added an index on a large table without using the <code>CONCURRENTLY</code> option, locking the table. This reminds me of a similar incident when I worked for Honeycomb and <a href="https://www.honeycomb.io/blog/making-room-for-lint">their solution</a>.</p>
<p>&nbsp;&nbsp;<small>Ray Chen &mdash; Railway</small></p>
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</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://ufried.com/blog/it_is_your_fault/" target="_blank" rel="noopener">It is your fault if your application is down</a></div>
<div class="sreweekly-description">
<p>Oof, that&#8217;s a harsh title, but this is a great discussion of how we strive to design for reliability even when our downstream vendors have outages.</p>
<p>&nbsp;&nbsp;<small>Uwe Friedrichsen</small></p>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://uptimelabs.io/advice-first-time-staff-sres/" target="_blank" rel="noopener">Advice for First-Time Staff SREs</a></div>
<div class="sreweekly-description">
<p>This one has a lot of good recommendations for staff-level SREs covering 8 areas, shared by a former Staff SRE.</p>
<p>&nbsp;&nbsp;<small>Karan Nagarajagowda</small></p>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://dzone.com/articles/the-jvm-pause-that-wasnt-a-war-story" target="_blank" rel="noopener">The JVM Pause That Wasn&#8217;t: A War Story</a></div>
<div class="sreweekly-description">
<blockquote>
<p>A high-throughput Java service was stalling. The culprit? Stop-the-World GC pauses were blocked by synchronous log writes to a busy disk.</p>
</blockquote>
<p>&nbsp;&nbsp;<small> Nataraj Mocherla &mdash; DZone</small></p>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://www.youtube.com/watch?v=lKPrvHVXPKE" target="_blank" rel="noopener">The Tragedy of PSA Flight 182</a></div>
<div class="sreweekly-description">
<p>This air accident report video by Mentour Pilot has a great example of alert fatigue around 30 minutes in. The air traffic controllers received enough spurious conflict alerts every day that they became easy to ignore.</p>
<p>&nbsp;&nbsp;<small>Mentour Pilot</small></p>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://blog.alexewerlof.com/p/emergent-properties" target="_blank" rel="noopener">Emergent properties</a></div>
<div class="sreweekly-description">
<blockquote>
<p>In this post you learn:<br />
* What are emergent properties and what kind of system has them?<br />
* What are weak and strong emergence as opposed to resultant properties?<br />
* How do emergent properties impact the reliability, maintainability, predictability, and cost of the system?</p>
</blockquote>
<p>Well worth a read. It really got me thinking about emergence and its relationship to reliability.</p>
<p>&nbsp;&nbsp;<small>Alex Ewerlöf</small></p>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://uptimelabs.io/incident-management-leadership/" target="_blank" rel="noopener">Who&#8217;s in Charge?</a></div>
<div class="sreweekly-description">
<p>In an incident, it&#8217;s important to have someone be in charge &mdash; and for it to be clear who that is, as explained in this article.</p>
<p>&nbsp;&nbsp;<small>Joe Mckevitt &mdash; Uptime Labs</small></p>
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