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<h1 class="entry-title" itemprop="headline" ><a href="https://sreweekly.com/sre-weekly-issue-402/">SRE Weekly Issue #402</a></h1>
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<i class="genericon genericon-day"></i><a class="updated" href="https://sreweekly.com/sre-weekly-issue-402/">December 10, 2023</a>
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<a href="https://sreweekly.com/sre-weekly-issue-402/" title="Permalink to SRE Weekly Issue #402" 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://firehydrant.com/">FireHydrant</a>:</h2>
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<div class="sreweekly-title"><a href="https://blog.alexewerlof.com/p/slc" target="_blank" rel="noopener">Introducing Service Level Calculator</a></div>
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<p>Wow, this interactive tool for choosing SLOs is fun to play with! Dragging the sliders really gives you a feel for the math involved, and then you get a formula that you can actually use.</p>
<p>&nbsp;&nbsp;<small>Alex Ewerlöf</small></p>
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<div class="sreweekly-title"><a href="https://medium.com/adevinta-tech-blog/trials-by-fire-tales-from-the-sre-frontlines-ep1-challenge-the-certificates-3f3fbb551c85" target="_blank" rel="noopener">Trial by Fire: Tales from the SRE Frontlines — Ep1: Challenge the certificates</a></div>
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<p>A riveting story of a service that was the victim of its own success, a potential solution, and then further challenges to overcome.</p>
<p>&nbsp;&nbsp;<small>Tanat Lokejaroenlarb — Adevinta</small></p>
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<div class="sreweekly-title"><a href="https://ferd.ca/notes/paper-you-want-my-password-or-a-dead-patient.html" target="_blank" rel="noopener">Paper: You Want My Password or a Dead Patient?</a></div>
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<p>Here&#8217;s a classic example of &#8220;work as imagined&#8221; vs &#8220;work as done&#8221;, as health care workers struggle against difficult security constraints while trying to care for patients.</p>
<p>&nbsp;&nbsp;<small>Fred Hebert — summary</small><br>
&nbsp;&nbsp;<small>Ross Koppel, Sean Smith, Jim Blythe, and Vijay Kothari — original paper</small></p>
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<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://www.squadcast.com/blog/sre-principles" target="_blank" rel="noopener">The Guide to SRE Principles</a></div>
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<p>This article covers a lot of ground, touching on a lot of components of a successful SRE program, and even includes a code example for SLO calculation.</p>
<p>&nbsp;&nbsp;<small>Vishal Padghan — Squadcast</small></p>
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<div class="sreweekly-title"><a href="https://www.dolthub.com/blog/2023-12-08-christmas-come-early-ebs-performance-regression-update/" target="_blank" rel="noopener">Christmas Come Early: An AWS EBS Performance Regression Update</a></div>
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<p>More on the weird EBS performance regression I linked to last week. Still no full explanation of what changed, but at least they have a solution (gp3 volumes).</p>
<p>&nbsp;&nbsp;<small>Dustin Brown — dolthub</small></p>
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<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://blog.roblox.com/2023/12/making-robloxs-infrastructure-efficient-resilient/" target="_blank" rel="noopener">How We’re Making Roblox’s Infrastructure More Efficient and Resilient</a></div>
<div class="sreweekly-description">
<p>After a massive 73-hour outage, Roblox set out to redesign their infrastructure to make that kind of incident much less likely. They&#8217;ve charted a path through several intermediate architectures, with the ultimate goal of active-active datacenters.</p>
<p>&nbsp;&nbsp;<small>Daniel Sturman, Max Ross, and Michael Wolf — Roblox</small></p>
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<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://surfingcomplexity.blog/2023/12/10/human-error-means-they-dont-understand-how-the-system-worked/" target="_blank" rel="noopener">“Human error” means they don’t understand how the system worked</a></div>
<div class="sreweekly-description">
<p>Now here&#8217;s one that really makes me think. I can&#8217;t really summarize it in a sentence, so just go read it.</p>
<p>&nbsp;&nbsp;<small>Lorin Hochstein</small></p>
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