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<h1 class="entry-title" itemprop="headline" ><a href="https://sreweekly.com/sre-weekly-issue-14/">SRE Weekly Issue #14</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-14/">March 13, 2016</a>
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<a href="https://sreweekly.com/sre-weekly-issue-14/" title="Permalink to SRE Weekly Issue #14" class="email_only">View on sreweekly.com</a>
<h2>Articles</h2>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="http://www.kitchensoap.com/2011/04/07/resilience-engineering-part-i/" target="_blank">Resilience Engineering: Part I</a></div>
<div class="sreweekly-description"> A classic from John Allspaw. Designing a resilient system isn&#8217;t about eliminating individual causes of downtime; it&#8217;s about continuing to operate in spite of them. Allspaw is a big proponent of looking beyond human error to the system surrounding the error. </p>
<blockquote><p>&#8230;human error as a root cause isn’t where you should <i>end</i>, it’s where you should <i>start</I> your investigation.</p></blockquote>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://dzone.com/articles/7-rules-for-using-log-data-effectively-in-a-retros" target="_blank">7 Rules for Using Log Data Effectively in a Retrospective</a></div>
<div class="sreweekly-description">This could just as well be titled, <i>7 Rules for Performing Effective Retrospectives</i>. There&#8217;s some really great stuff in here and also some good references. </p>
<blockquote><p>The rules are: </p>
<ul>
<li>Learn, don’t blame
<li>Know the scope of the system
<li>Make sure you have all the relevant logs
<li>Make sure the logs lineup with the timeline
<li>Separate the noise from the information
<li>Make sure the biases are known
<li>Make sure you deal in facts and not counterfacts</ul>
</blockquote>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://labs.spotify.com/2016/03/03/spotifys-event-delivery-the-road-to-the-cloud-part-ii/" target="_blank">Spotify’s Event Delivery</a></div>
<div class="sreweekly-description">Spotify shares this deeply technical look at their event delivery and processing system that handles 700k messages per second. The bulk of the article details how they tested Google&#8217;s Cloud Pub/Sub to be sure it was reliable enough for their needs. </p>
<blockquote><p>&#8230;Cloud Pub/Sub was being advertised as beta software; we were unaware of any organisation other than Google who were using it at our scale.</p></blockquote>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://dzone.com/articles/taobaos-security-breach-from-a-log-perspective" target="_blank">Taobao&#8217;s Security Breach from a Log Perspective</a></div>
<div class="sreweekly-description">Taobao.com suffered a huge security breach in which credentials harvested from previous break-ins were used to break into accounts. This short write-up on DZone urges us to use anomaly detection to catch brute-force attacks like this as they happen. </p>
<blockquote><p>Reports say the hackers executed approximately 100 million login attempts, and almost 21 million of these turned out to be successful.</p></blockquote>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://blogs.msdn.microsoft.com/azuresecurity/2016/03/09/evolution-of-useful-results-from-anomaly-detection-systems/" target="_blank">Evolution of Useful Results from Anomaly Detection Systems</a></div>
<div class="sreweekly-description">Speaking of anomaly detection, this article highlights the problems with existing anomaly detection systems and describes what a successful system would look like. I&#8217;ve yet to see a generalized anomaly detection system with an acceptable false positive rate that did better than specific, targeted monitoring.</div>
</p>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://www.cloudendure.com/blog/news/disaster-recover-survey-2016/" target="_blank">2016 CloudEndure DR Survey</a></div>
<div class="sreweekly-description">This survey, released last month, looks possibly interesting. I&#8217;m not 100% sure though, because their server is offline and I can&#8217;t retrieve it. Oh, the irony.</div>
</p>
</div>
<h2>Outages</h2>
<ul class="sreweekly-outages">
<li><a href="http://mspoweruser.com/xbox-live-many-microsoft-acknowledges-downtime/">Xbox Live</a>
<li><a href="https://dzone.com/articles/news-sites-stumble-at-crucial-moments-on-super-tue">Fox and ABC News</a>
<ul class="sreweekly-outage">
<li class="sreweekly-outage">
<p>Two large news sites suffered brief outages on Super Tuesday, an important voting day in the US. Both were apparently taken out by a failure in the analytics provider that they share in common.</p>
</ul>
<li><a href="http://deadline.com/2016/03/directv-outages-across-us-1201716447/">DirecTV</a>
<li><a href="http://www.express.co.uk/entertainment/gaming/650979/PSN-down-PlayStation-Network-PS4-Sony-service-outage">PSN</a>
<li><a href="http://www.dailystar.co.uk/tech/news/500119/Netflix-not-working-movie-streaming-site-down">Netflix</a>
<li><a href="http://www.techworm.net/2016/03/pirate-bay-no-one-knows-reason.html">The Pirate Bay</a>
<li><a href="http://www.theregister.co.uk/2016/03/09/orange_webmail_uk_outage/">EE webmail</a>
<li><a href="http://www.reuters.com/article/us-amazon-com-outages-idUSKCN0WC2PP">Amazon.com</a>
<li><a href="http://m.dailyprogress.com/news/local/lane-corman-miscommunication-caused-centurylink-outage/article_572fec86-9b77-588a-be88-c686d4b5ccfd.html?mode=jqm">CenturyLink</a>
<ul class="sreweekly-outage">
<li class="sreweekly-outage">
<p>Miscommunication is cited in this construction-induced fiber cut.</p>
</ul>
<li><a href="https://www.reddit.com/r/thedivision/comments/4a0t9h/servers_down/">The Division (game)</a>
<li><a href="http://www.gizmodo.in/news/Hackers-Broke-Into-a-Security-Company-and-Stole-the-KKKs-Data/articleshow/51366194.cms">The KKK</a>
<ul class="sreweekly-outage">
<li class="sreweekly-outage">
<p>Staminus, a DDoS protection company, suffered a huge data breach including full names and credit card numbers. The attackers also took down their infrastructure causing an outage for big-name clients such as the KKK.</p>
</ul>
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