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<h1 class="entry-title" itemprop="headline" ><a href="https://sreweekly.com/sre-weekly-issue-449/">SRE Weekly Issue #449</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-449/">November 3, 2024</a>
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<p><a class="email_only" href="https://sreweekly.com/sre-weekly-issue-449/">View on sreweekly.com</a></p>
<div class="sreweekly-sponsor-message" style="border: 1px solid #b0b0b0;margin-top: 2rem;margin-bottom: 2rem;margin-left: auto;margin-right: auto;padding-left: 1rem;padding-right: 1rem;width: 80%;align: center;">
<h2 style="text-align: center;font-size: 80%;color: #909090;">A message from our sponsor, <a href="https://firehydrant.com/">FireHydrant</a>:</h2>
<p>Practice Makes Prepared: Why Every Minor System Hiccup Is Your Team&#8217;s Secret Training Ground.</p>
<p><a href="https://firehydrant.com/blog/the-hidden-value-of-lower-severity-incidents/">https://firehydrant.com/blog/the-hidden-value-of-lower-severity-incidents/</a></p>
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<div class="sreweekly-title"><a href="https://jpereira.me/announcing-52-weeks-of-sre-a-journey-to-master-site-reliability-engineering/" target="_blank" rel="noopener">Announcing: 52 Weeks of SRE &#8211; A Journey to Master Site Reliability Engineering</a></div>
<div class="sreweekly-description">
<p>This new series seems promising! I won&#8217;t link to every article in the series here, but if you&#8217;re an early SRE, the intro-level articles published so far in this series are definitely worth a read.</p>
<blockquote>
<p>Today, I&#8217;m thrilled to announce an ambitious project that&#8217;s been in the works for some time: &#8220;52 Weeks of SRE&#8221; – a comprehensive, year-long deep dive into the world of Site Reliability Engineering.</p>
</blockquote>
<p>&nbsp;&nbsp;<small>J. Pereira</small></p>
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</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://medium.com/adevinta-tech-blog/the-karpenter-effect-redefining-our-kubernetes-operations-80c7ba90a599" target="_blank" rel="noopener">The Karpenter Effect: Redefining Our Kubernetes Operations</a></div>
<div class="sreweekly-description">
<p>Adevinta shifted from Kubernetes&#8217;s cluster autoscaler to AWS&#8217;s Karpenter. The change brought huge advantages that they discuss in detail, along with a few challenges and pitfalls they needed to overcome.</p>
<p>  <small>Tanat Lokejaroenlarb — Adevinta</small></p>
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</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://blog.cloudflare.com/how-we-use-openbmc-and-acpi-power-states-to-monitor-the-state-of-our-servers" target="_blank" rel="noopener">Is this thing on? Using OpenBMC and ACPI power states for reliable server boot</a></div>
<div class="sreweekly-description">
<p>An adventure in adopting an open source firmware for Baseboard Management Controllers, including fixing a few bugs themselves.</p>
<p>  <small>Nnamdi Ajah, Ryan Chow, and Giovanni Pereira Zantedeschi <small>— Cloudflare</small></small></p>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://dzone.com/articles/accelerating-connection-handshakes" target="_blank" rel="noopener">Accelerating Connection Handshakes</a></div>
<div class="sreweekly-description">
<blockquote>
<p>[&#8230;] an overview of methods like TCP FastOpen, TLSv1.3, 0-RTT, and HTTP/3 to reduce handshake delays and improve server response times in secure environments.</p>
</blockquote>
<p>&nbsp;&nbsp;<small> Maksim Kupriianov &mdash; DZone</small></p>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://reliabilityengineering.substack.com/p/how-to-choose-the-right-instance" target="_blank" rel="noopener">How to &#8211; Choose the Right Instance Size for AWS RDS</a></div>
<div class="sreweekly-description">
<p>This article includes general tips and a specific rubric you can follow to decide when to choose a larger or smaller RDS instance type.</p>
<p>&nbsp;&nbsp;<small>Prabesh</small></p>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://klaviyo.tech/incident-management-from-an-astronaut-069ef8763314" target="_blank" rel="noopener">Incident Management from an Astronaut</a></div>
<div class="sreweekly-description">
<p>It turns out that a lot of the lessons that Mike Massimino learned as an astronaut apply very well to incident management.</p>
<p>&nbsp;&nbsp;<small>Eric Silberstein &mdash; Klaviyo</small></p>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://medium.com/adevinta-tech-blog/how-we-avoided-an-outage-caused-by-running-out-of-ips-in-eks-c831ab97d0e4?source=rss----19a122f075bd---4" target="_blank" rel="noopener">How we avoided an outage caused by running out of IPs in EKS</a></div>
<div class="sreweekly-description">
<blockquote>
<p>Solving IP exhaustion in EKS: Avoiding a network outage by implementing custom networking</p>
</blockquote>
<p>&nbsp;&nbsp;<small>Fabián Sellés Rosa &mdash; Adevinta</small></p>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://dropbox.tech/infrastructure/robinhood-in-house-load-balancing-service" target="_blank" rel="noopener">What’s new with Robinhood, our in-house load balancing service</a></div>
<div class="sreweekly-description">
<blockquote>
<p>By leveraging proportional–integral–derivative (PID) controllers, Robinhood can now more quickly and effectively manage load imbalances.</p>
</blockquote>
<p>This was my first introduction to <a href="https://en.wikipedia.org/wiki/Proportional%E2%80%93integral%E2%80%93derivative_controller">PID controllers</a>. Neat!</p>
<p>&nbsp;&nbsp;<small>Yi-Shu Tai &mdash; Dropbox</small></p>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://surfingcomplexity.blog/2024/10/29/the-carefulness-knob/" target="_blank" rel="noopener">The carefulness knob</a></div>
<div class="sreweekly-description">
<p>Through an allegory about an imaginary knob to adjust between risk-avoidance and speed, Lorin Hochstein shows us that these trade-offs <em>are</em> being made, just implicitly.</p>
<p>&nbsp;&nbsp;<small>Lorin Hochstein</small></p>
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