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<h1 class="entry-title" itemprop="headline" ><a href="https://sreweekly.com/sre-weekly-issue-106/">SRE Weekly Issue #106</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-106/">January 21, 2018</a>
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<a href="https://sreweekly.com/sre-weekly-issue-106/" title="Permalink to SRE Weekly Issue #106" class="email_only">View on sreweekly.com</a>
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<h2 style="text-align: center; font-size: 55%; color: #b0b0b0;">SPONSOR MESSAGE</h2>
<p>See how AlienVault focuses their incident management on collaboration and shared responsibility while relying on the rules engine of the VictorOps Transmogrifier. <a href="http://try.victorops.com/SREWeekly/AlienVault">http://try.victorops.com/SREWeekly/AlienVault</a></p>
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<h2>Articles</h2>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://medium.com/production-ready/the-limitations-of-chaos-engineering-2a74816c0df3" target="_blank">The Limitations of Chaos Engineering – Production Ready</a></div>
<div class="sreweekly-description">
<p>Chaos engineering is extremely useful, and Mathias Lafeldt has written plenty about its virtues. But as with everything, it&#8217;s important to be aware of its pitfalls and shortcomings too.</p>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://www.fastcodesign.com/90157153/don-norman-what-went-wrong-in-hawaii-human-error-nope-bad-design" target="_blank">What Went Wrong In Hawaii, Human Error? Nope, Bad Design.</a></div>
<div class="sreweekly-description">
<p>There&#8217;s been a lot of talk of firing (or worse) the person whose actions led to the false alarm in Hawaii. That&#8217;s why I&#8217;m especially glad to see this excellent analysis by Don Norman (<u>The Design of Everyday Things</u> and others). Bonus content: <a href="https://www.theladders.com/career-advice/fall-guys-systems-not-people-blame-hawaii">another article</a> along the same vein with some more interesting tidbits.</p>
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<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://chrisdown.name/2018/01/02/in-defence-of-swap.html" target="_blank">In defence of swap: common misconceptions</a></div>
<div class="sreweekly-description">
<p>Think twice before you disable swap, says Chris Down, an author of the upcoming cgroup v2 in the Linux kernel.</p>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="http://pages.catchpoint.com/SRE-Survey-2018.html" target="_blank">SRE Survey 2018</a></div>
<div class="sreweekly-description">
<p>Catchpoint is running a survey of SREs and SRE-like folks, and I&#8217;d really appreciate it if you&#8217;d take a moment to fill it out. Not only will the resulting data be very interesting, but <b>Catchpoint is donating $5 to charity for every survey completed</b>. Let&#8217;s stuff that ballot box and get them to hit their cap of $3000!</p>
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<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://bravenewgeek.com/building-a-distributed-log-from-scratch-part-4-trade-offs-and-lessons-learned/" target="_blank">Building a Distributed Log from Scratch, Part 4: Trade-Offs and Lessons Learned</a></div>
<div class="sreweekly-description">
<p>The awesome continues this week with a discussion of the importance of simplicity in the design of a reliable system.</p>
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</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="http://blog.launchdarkly.com/what-makes-a-failure-a-disaster/" target="_blank">What Makes a Failure a Disaster?</a></div>
<div class="sreweekly-description">
<p>This article from Heidi Waterhouse at Launch Darkly starts off with a really interesting take on the Y2K bug and continues on to discuss risk management in operations.</p>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://ayende.com/blog/180993/when-letting-the-user-put-the-system-into-an-invalid-state-is-a-desirable-property" target="_blank">When letting the user put the system into an invalid state is a desirable property</a></div>
<div class="sreweekly-description">
<p>This short article has an extremely cogent point: design your system to be flexible enough to allow the user to do something seemingly incorrect, because they might need to while responding to an incident!</p>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://engineering.linkedin.com/blog/2018/01/project-star-streamlining-our-on-call-process" target="_blank">Project STAR*: Streamlining Our On-Call Process</a></div>
<div class="sreweekly-description">
<p>LinkedIn had a problem: their on-call system was so dysfunctional that they had to scramble to find coverage for an engineer that had been scheduled to be on call when they were on vacation. They explain how they identified the problem, came up with a solution, and implemented it, including automation and cultural fixes.</p>
</div>
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<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="http://queue.acm.org/detail.cfm?id=3178371" target="_blank">Monitoring in a DevOps World</a></div>
<div class="sreweekly-description">
<p>If the phrase &#8220;a DevOps World&#8221; makes you feel ill, don&#8217;t dismiss this article from ACM Queue out of hand. It&#8217;s got some great points about designing effective monitoring, and I like the introduction of the &#8220;Real Systems Monitoring&#8221; concept (akin to &#8220;Real User Monitoring&#8221; or RUM).</p>
</div>
</div>
<h2>Outages</h2>
<ul class="sreweekly-outages">
<li><a href="https://status.heroku.com/incidents/1372">Heroku</a>
<ul class="sreweekly-outage">
<li class="sreweekly-outage">Heroku had a 29-hour impairment to their application log routing platform.</li>
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