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<h1 class="entry-title" itemprop="headline" ><a href="https://sreweekly.com/sre-weekly-issue-80/">SRE Weekly Issue #80</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-80/">July 9, 2017</a>
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<h2>Articles</h2>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://jvns.ca/blog/2017/07/05/linux-tracing-systems/" target="_blank">Linux tracing systems &amp; how they fit together</a></div>
<div class="sreweekly-description">
<p>I had no idea there were so many tracing systems in Linux! Fortunately Julia Evans did, and she learned all about them so that she could explain them to us.</p>
<blockquote><p>There’s strace, and ltrace, kprobes, and tracepoints, and uprobes, and ftrace, and perf, and eBPF, and how does it all fit together and what does it all MEAN?</p></blockquote>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://hackernoon.com/so-you-want-to-be-an-sre-34e832357a8c" target="_blank">So you want to be an SRE?</a></div>
<div class="sreweekly-description">
<p>What do you get when a high school teacher switches careers, goes to boot camp, and becomes an SRE? In this case, we get Krishelle Hardson-Hurley, who wrote this really great intro to the SRE field. She also included a set of links to other SRE materials. Thanks for the link to SRE Weekly, Krishelle!</p>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://medium.com/production-ready/embracing-failure-in-a-container-world-217a3cc414c1" target="_blank">Embracing Failure in a Container World – Production Ready</a></div>
<div class="sreweekly-description">
<p>This issue of <u>Production Ready</u> is a transcript (with slides) of Mathias&#8217;s talk at <a href="https://containerdays.io/">ContainerDays</a> on doing chaos engineering in a container-based infrastructure. I really like the idea of attaching a side-car container to inject latency using <a href="http://tldp.org/HOWTO/Traffic-Control-HOWTO/intro.html"><tt>tc</tt></a>.</p>
</div>
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<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://www.geekwire.com/2017/redfin-running-site-single-data-center-without-backup-facility/" target="_blank">Why is Redfin running its site from a single data center without a backup facility?</a></div>
<div class="sreweekly-description">
<p>Here&#8217;s an interesting side-effect from an IPO: <a href="https://www.redfin.com/">Redfin</a> was obliged to mention the fact that its website runs out of a single datacenter.</p>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://honeycomb.io/blog/2017/07/event-foo-designing-for-results/" target="_blank">Event Foo: Designing for Results</a></div>
<div class="sreweekly-description">
<p>This article, part of a series from Honeycomb.io on structured event logging, contains some tips on structuring your events well to get the most out of your logs.</p>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="http://www.datacenterknowledge.com/archives/2017/07/06/peculiarities-high-availability-data-center-design-cruise-ship/" target="_blank">The Peculiarities of High-Availability Data Center Design on a Cruise Ship</a></div>
<div class="sreweekly-description">
<p>I&#8217;d never thought about what IT systems must exist on a cruise ship before. This article left me wanting to know more, so I found <a href="http://www.zdnet.com/pictures/datacentres-sail-the-high-seas-on-cruise-ship/">this ZDNet article</a> with pictures and descriptions of another cruise ship datacenter layout.</p>
</div>
</div>
<h2>Outages</h2>
<ul>
<li><a href="http://nbc4i.com/2017/07/03/chase-bank-says-it-is-working-on-problems-with-website-and-mobile-app/">Chase Bank</a></li>
<li><a href="https://www.theverge.com/2017/7/3/15917950/nasdaq-nyse-stock-market-data-error">Data glitch sets tech company stock prices at $123.47</a>
<ul class="sreweekly-outage">
<li class="sreweekly-outage">Here&#8217;s an interesting one. Vendors that consume and distribute price information from Nasdaq incorrectly interpreted &#8220;normal test data&#8221; from Nasdaq as if it were real. It looked like a bunch of companies&#8217;s stock prices had crashed or jumped by huge amounts.</li>
</ul>
</li>
<li><a href="https://www.nigeriatoday.ng/2017/07/major-darknet-marketplace-alphabay-goes-down-exit-scam-speculations-arise/">Alphabay</a></li>
</ul>
<ul class="sreweekly-outages">
<li><a href="https://aws.amazon.com/message/680587/">Summary of the December 24, 2012 Amazon ELB Service Event in the US-East Region</a>
<ul class="sreweekly-outage">
<li class="sreweekly-outage">Here&#8217;s a classic postmortem from Amazon, in which a developer inadvertently deleted the production ELB state information.</li>
</ul>
</li>
<li><a href="https://slackhq.com/this-was-not-normal-really-230c2fd23bdc">Slack: This was not normal. Really.</a>
<ul class="sreweekly-outage">
<li class="sreweekly-outage">I&#8217;d forgotten about this superlative example of an incident followup posting from Slack after a pair of outages in 2014. What reminded me was a commit to Dan Luu&#8217;s <a href="https://github.com/danluu/post-mortems">post-mortems repo in github</a> that mentioned it.</li>
</ul>
</li>
<li><a href="https://status.heroku.com/incidents/372">Heroku Incident 372: HTTP Routing Errors</a>
<ul class="sreweekly-outage">
<li class="sreweekly-outage">Here&#8217;s another classic incident followup posting. Heroku spills the details on a major outage that cut off access to all applications for 30 minutes in 2012.<small><em>Full disclosure: Heroku is my employer.</em></small></li>
</ul>
</li>
</ul>
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