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<article id="post-557" class="single-view post-557 post type-post status-publish format-standard hentry category-general" itemprop="blogPost" itemscope itemtype="http://schema.org/BlogPosting">
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<h1 class="entry-title" itemprop="headline" ><a href="https://sreweekly.com/sre-weekly-issue-88/">SRE Weekly Issue #88</a></h1>
</header>
<div class="entry-byline cf">
<div class="entry-date" itemprop="datePublished" >
<i class="genericon genericon-day"></i><a class="updated" href="https://sreweekly.com/sre-weekly-issue-88/">September 10, 2017</a>
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<a href="https://sreweekly.com/sre-weekly-issue-88/" title="Permalink to SRE Weekly Issue #88" class="email_only">View on sreweekly.com</a>
<div class="sreweekly-sponsor-message" style="border: 1px solid #b0b0b0; padding-left: 1rem; padding-right: 1rem; width: 80%; align: center; margin: 2rem auto 2rem auto;">
<h2 style="text-align: center; font-size: 55%; color: #b0b0b0;">SPONSOR MESSAGE</h2>
<p>Acknowledge and resolve IT &amp; DevOps alerts directly from Slack with the new native integration with VictorOps. Learn all about it here:<br />
<a href="http://try.victorops.com/slack/SREWeekly">http://try.victorops.com/slack/SREWeekly</a></p>
</div>
<h2>Articles</h2>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://caitiem.com/2017/09/07/getting-started-with-distributed-systems/" target="_blank">Resources for Getting Started with Distributed Systems</a></div>
<div class="sreweekly-description">
<p>From Catie McCaffrey:</p>
<blockquote><p>I’m often asked how to get started with Distributed Systems, so this post documents my path and some of the resources I found most helpful. It is by no means meant to be an exhaustive list.</p></blockquote>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://jvns.ca/blog/2017/09/05/finding-out-where-packets-are-being-dropped/" target="_blank">Finding out if/why a server is dropping packets</a></div>
<div class="sreweekly-description">
<p>Julia Evans just blew my mind (once again). In this article, among other things, she links to a tool that tells you which function in the kernel dropped a packet. I&#8217;ve been wishing for such a tool for years!</p>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://www.datadoghq.com/blog/elasticsearch-game-day/?__s=bwykwk1kcceogszq8abt" target="_blank">3 lessons learned from an Elasticsearch game day</a></div>
<div class="sreweekly-description">
<p>I love that companies are starting to publish lessons learned from game days and other chaos experiments. Just like a post-incident followup, there&#8217;s so much we can learn by following along.</p>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://itbrief.co.nz/story/missing-link-your-disaster-recovery-strategy/" target="_blank">The missing link in your disaster recovery strategy</a></div>
<div class="sreweekly-description">
<blockquote><p>It’s an absolute must for any disaster recovery plan worth its name to include power supply as a crucial factor – because, without power, you simply can’t do business.</p></blockquote>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://victorops.com/blog/post-incident-reviews-part-four-a-post-incident-review-guide-and-next-best-steps/" target="_blank">Post-Incident Reviews Part Four: A Post-Incident Review Guide and Next Best Steps</a></div>
<div class="sreweekly-description">
<p>Here&#8217;s the last installment of Jason Hand&#8217;s digest version of his new eBook, <u>Post-Incident Reviews</u>.</p>
<blockquote><p>If I leave you with one take-away from this guide, it should be that every incident provides an opportunity for your team to be more prepared for the next one.</p></blockquote>
<p><small><em>This article is published by my sponsor, VictorOps, but their sponsorship did not influence its inclusion in this issue.</em></small></p>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="http://www.datacenterjournal.com/happens-colo-fails-protect-disaster/" target="_blank">What If Your Colo Fails: Preventing Disaster</a></div>
<div class="sreweekly-description">
<p>How can you prevent a colo failure? Obviously, colo customers can&#8217;t, but we can at least prepare. This article has advice for understanding a provider&#8217;s history, policies, and procedures related to outages.</p>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://www.whoownsmyavailability.com/" target="_blank">Who Owns My Availability?</a></div>
<div class="sreweekly-description">
<p>Just click through.</p>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://fearoflanding.com/accidents/accident-reports/when-both-your-mind-and-your-instruments-are-lying/" target="_blank">Fear of Landing – When Both Your Mind and Your Instruments Are Lying</a></div>
<div class="sreweekly-description">
<p>In this analysis of the factors leading to a plane crash, we see another example of the critical role that human/computer interfaces play in allowing (or preventing) humans to recover from a system failure.</p>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="http://www.xconomy.com/san-francisco/2017/09/05/hurricane-harvey-a-test-bed-for-internet-resilience/" target="_blank">Hurricane Harvey: A Test-Bed For Internet Resilience</a></div>
<div class="sreweekly-description">
<p>Move over, backhoes: water is the other natural enemy of the fiber optic network.</p>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://www.confluent.io/blog/publishing-apache-kafka-new-york-times/" target="_blank">Publishing with Apache Kafka at The New York Times</a></div>
<div class="sreweekly-description">
<p>The New York Times has a Kafka installation containing everything they&#8217;ve published in their entire history, and it powers the front page, search, suggestions, and everything else.</p>
</div>
</div>
<h2>Outages</h2>
<ul class="sreweekly-outages">
<li><a href="http://www.thebookseller.com/news/abe-books-outage-leaves-independent-booksellers-loss-631006">AbeBooks.com</a>
<ul class="sreweekly-outage">
<li class="sreweekly-outage">AbeBooks is the place to go for out-of-print books and old editions. The site going down meant that many used booksellers lost a major sales outlet.</li>
</ul>
</li>
<li><a href="https://www.iol.co.za/business-report/technology/google-apologises-for-gmail-outage-908653">Gmail</a></li>
<li><a href="https://www.cnet.com/news/apple-blames-software-bug-for-developer-portal-gaffe/">Apple developer portal</a></li>
<li><a href="http://heavy.com/tech/2017/09/google-drive-down-outages-problems-fixed/">Google Drive</a></li>
<li><a href="http://9to5mac.com/2017/09/07/icloud-mail-seemingly-experiencing-widespread-downtime/">iCloud Mail</a></li>
<li><a href="https://status.heroku.com/">Heroku</a>
<ul class="sreweekly-outage">
<li class="sreweekly-outage">Heroku posted a pile of public followups this past week:
<ul>
<li><a href="https://status.heroku.com/incidents/1254">Incidents 1251 and 1254</a> – In both of these incidents, applications failed due to missing debian packages normally provided by the Heroku platform.</li>
<li><a href="https://status.heroku.com/incidents/1257">Incident 1257</a> – For a few minutes, 10% of requests to Heroku applications hosted in Europe failed.</li>
<li><a href="https://status.heroku.com/incidents/1270">Incident 1270</a> – Applications last deployed over 3 years ago spontaneously stopped working.</li>
</ul>
<p><small><em>Full disclosure: Heroku is my employer.</em></small></li>
</ul>
</li>
</ul>
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