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<h1 class="entry-title" itemprop="headline" ><a href="https://sreweekly.com/sre-weekly-issue-140/">SRE Weekly Issue #140</a></h1>
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<i class="genericon genericon-day"></i><a class="updated" href="https://sreweekly.com/sre-weekly-issue-140/">September 23, 2018</a>
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<a href="https://sreweekly.com/sre-weekly-issue-140/" title="Permalink to SRE Weekly Issue #140" 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>Are you exploring serverless architecture on AWS? Check out this post to get step-by-step instructions for setting up and maintaining DynamoDB to keep it from waking you up with unactionable alerts:</p>
<p><a href="http://try.victorops.com/sreweekly/dynamodb-and-aws">http://try.victorops.com/sreweekly/dynamodb-and-aws</a></p>
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<h2>Articles</h2>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://logicmag.io/05-the-servers-are-burning/" target="_blank">Errata: The Servers Are Burning</a></div>
<div class="sreweekly-description">
<p>My sincerest apologies to Dale Markowitz, the author of this article who I mispronouned in last week&#8217;s issue. I&#8217;m kicking myself, because I totally didn&#8217;t need to use a pronoun at all.</p>
<p><small>Dale Markowitz — LOGIC Magazine</small></p>
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</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://lore.kernel.org/lkml/CA+55aFy+Hv9O5citAawS+mVZO+ywCKd9NQ2wxUmGsz9ZJzqgJQ@mail.gmail.com/" target="_blank">Linux 4.19-rc4 released, an apology, and a maintainership note</a></div>
<div class="sreweekly-description">
<p>Linus Torvalds made waves this week with an email apologizing for his unprofessional behavior and committing to improving.</p>
<p><small>Linus Torvalds</small></p>
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</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://launchdarkly.com/blog/designing-for-failure-to-avoid-disaster/" target="_blank">Designing for Failure to Avoid Disaster</a></div>
<div class="sreweekly-description">
<p>A pretty detailed article on how LaunchDarkly designed their system for reliability. The streaming vs. polling section is especially interesting.</p>
<p><small>Adam Zimman — LaunchDarkly</small></p>
<p><small><em>Full disclosure: Fastly, my employer, is mentioned.</em></small></p>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://code.fb.com/core-data/logdevice-a-distributed-data-store-for-logs/" target="_blank">LogDevice: a distributed data store for logs – Facebook Code</a></div>
<div class="sreweekly-description">
<p>Lots of details about how they achieve their reliability goals. I&#8217;d love to see a followup with more detail on why writing a solution in-house made sense versus adopting something like Kafka.</p>
<p><small>Mark Marchukov — Facebook</small></p>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://dzone.com/articles/13-reasons-why-staging-environment-is-failing-for-1" target="_blank">13 Reasons a Staging Environment Is Failing in Your Organization &#8211; DZone DevOps</a></div>
<div class="sreweekly-description">
<blockquote><p>The staging environment plays an important part. If staging isn&#8217;t working for your organization, make sure you aren&#8217;t making these common mistakes.</p></blockquote>
<p><small>Harshit Paul — DZone</small></p>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://engineering.grab.com/mockers" target="_blank">Mockers &#8211; overcoming testing challenges at Grab</a></div>
<div class="sreweekly-description">
<p>The challenges in question involve testing a microservice&#8217;s interactions with other microservices. Read about their system for distributing and running mock servers for each microservice.</p>
<p><small>Mayank Gupta, K.Vineet Nair, Shivkumar Krishnan, Thuy Nguyen, and Vishal Prakash — Grab</small></p>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="http://www.slate.com/articles/health_and_science/science/2016/09/bp_is_to_blame_for_deepwater_horizon_but_its_mistake_was_actually_years.html" target="_blank">BP is to blame for Deepwater Horizon, but its mistake was actually years of small mistakes.</a></div>
<div class="sreweekly-description">
<p>My partner suggested I look into the Deepwater Horizon incident, and I&#8217;m glad I did. My two key takeaways were <em>normalization of deviance</em> and this gem:</p>
<blockquote><p>Researchers who study disasters tell us that a long period without an accident can be a big risk factor in itself: Workers learn to expect safe operation as the norm and can’t even conceive of a devastating failure.</p></blockquote>
<p><small>James B. Meigs — Slate</small></p>
</div>
</div>
<h2>Outages</h2>
<ul class="sreweekly-outages">
<li><a href="https://www.compelo.com/cashplus-ceo-apology-letter/">Cashplus (bank)</a></li>
<li><a href="https://status.heroku.com/incidents/1619">Heroku Incident #1619 (August 30) followup posting</a></li>
<li><a href="http://www.heraldtribune.com/news/20180917/suntrust-digital-banking-down-for-second-day">SunTrust (bank)</a></li>
<li><a href="https://www.paddleyourownkanoo.com/2018/09/17/uh-oh-the-ryanair-crashes-due-to-server-issues-days-before-lockdown-agm-gets-underway/">Ryanair</a></li>
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