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<h1 class="entry-title" itemprop="headline" ><a href="https://sreweekly.com/sre-weekly-issue-102/">SRE Weekly Issue #102</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-102/">December 17, 2017</a>
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<p><a href="https://sreweekly.com/sre-weekly-issue-102/" title="Permalink to SRE Weekly Issue #102" class="email_only">View on sreweekly.com</a><br />
My phone <a href="https://en.wikipedia.org/wiki/LG_smartphone_bootloop_issues">died</a> this week, and I discovered the hard way that my backups hadn&#8217;t been functioning properly.  SRE Weekly is served out of a single t2.micro, too.  Sometimes it&#8217;s hard to practice what I preach outside of work. ;)  Anyway, bit of a light issue this week, but still some great stuff.</p>
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<h2>Articles</h2>
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<div class="sreweekly-title"><a href="http://sysadvent.blogspot.com/2017/12/day-13-half-dead-tcp-connections-and.html" target="_blank">sysadvent: Day 13 &#8211; Half-Dead TCP Connections and Why Heartbeats Matter</a></div>
<div class="sreweekly-description">
<p>I&#8217;ve lost count of the number of incidents I&#8217;ve witnessed that were caused by TCP connections in which one end disappeared. This cautionary tale has a pretty interesting cause as well.</p>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://www.pagerduty.com/blog/after-incident-post-mortem/" target="_blank">Getting the Most from Your Incident Post-Mortem &#8211; PagerDuty</a></div>
<div class="sreweekly-description">
<blockquote><p>In many ways, what you <i>do</i> with an incident post-mortem can be as important as the post-mortem itself. Below, I explain why and offer tips on what to do after the post-mortem is complete.</p></blockquote>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://michael-kehoe.io/post/reminders-about-using-traceroute-in-multi-path-networks/" target="_blank">Reminders about using traceroute in multi-path networks</a></div>
<div class="sreweekly-description">
<p>If the title of this article doesn&#8217;t make sense to you, then you may well have been interpreting <tt>traceroute</tt> results incorrectly. Definitely worth a read.</p>
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</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://blog.gremlin.com/introducing-gremlin-orchestrating-chaos-b137b74f2371?source=rss----94cbb73a7983---4" target="_blank">Introducing Gremlin: Orchestrating Chaos</a></div>
<div class="sreweekly-description">
<p>Gremlin inc. is live! Here&#8217;s the official &#8220;coming out&#8221; post for this chaos engineering startup.</p>
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<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="http://highscalability.com/blog/2017/12/11/netflix-what-happens-when-you-press-play.html" target="_blank">Netflix: What Happens When You Press Play?</a></div>
<div class="sreweekly-description">
<p>There&#8217;s so much to delve into in this long article about Netflix&#8217;s infrastructure. It&#8217;s part of the book, <a href="https://smile.amazon.com/Explain-Cloud-Like-Im-10-ebook/dp/B0765C4SNR">Explain the Cloud Like I&#8217;m 10</a>, but I didn&#8217;t really find the explanations watered-down or over-simplified.</p>
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<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://medium.com/booking-com-infrastructure/incidents-fixes-and-the-day-after-c5d9aeae28c3" target="_blank">Incidents, fixes, and the day after</a></div>
<div class="sreweekly-description">
<p>A great description of <a href="https://www.booking.com/">booking.com</a>&#8216;s incident response and followup process.</p>
<blockquote><p>Incidents are like presents: You love them as long as you don’t get the same present twice.</p></blockquote>
</div>
</div>
<h2>Outages</h2>
<ul class="sreweekly-outages">
<li><a href="https://gocardless.com/blog/incident-review-api-and-dashboard-outage-on-10th-october/">Incident review: API and Dashboard outage on 10 October 2017 — GoCardless Blog</a>
<ul class="sreweekly-outage">
<li class="sreweekly-outage">This is a truly epic post-incident analysis from the folks at <a href="https://gocardless.com/en-us/">GoCardless</a>. The highlights: simultaneous 3-drive failure in a RAID array, weird behavior from Pacemaker, a red herring from Postgres, and a multi-month investigation process.</li>
</ul>
</li>
<li><a href="https://status.slack.com/2017-12/0928e3b14cbf5e9d">Slack Server Error, Site Down Amid Friday Outage</a>
<ul class="sreweekly-outage">
<li class="sreweekly-outage">And a second incident, <a href="https://status.slack.com/2017-12/0b505e2c4e99d142">later the same day</a>.</li>
</ul>
</li>
<li><a href="https://www.campussafetymagazine.com/cs/paras-jha-rutgers-student-guilty-internet-cyberattack/">Former Rutgers Student Pleads Guilty After Historic Internet Outage</a>
<ul class="sreweekly-outage">
<li class="sreweekly-outage">The outage in question is the Dyn DDoS in October of 2016, and the student pled guilty to creating the Mirai botnet.</li>
</ul>
</li>
<li><a href="http://www.businessinsider.com/deutsche-boerse-outage-xetra-and-eurex-face-issues-2017-12">Eurex and Xetra (stock exchanges)</a></li>
<li><a href="http://www.ibtimes.com/instagram-down-5xx-sever-error-causing-problems-2627469">Instagram</a></li>
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