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2026-09-12 17:23:01 +08:00

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<h1 class="entry-title" itemprop="headline" ><a href="https://sreweekly.com/sre-weekly-issue-28/">SRE Weekly Issue #28</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-28/">June 26, 2016</a>
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<div class="entry-content cf" itemprop="text" >
<p>A more packed issue this week to make up for missing last week. This issue is coming to you from beautiful Cape Cod, where my family and I are vacationing for the week.</p>
<a href="https://sreweekly.com/sre-weekly-issue-28/" title="Permalink to SRE Weekly Issue #28" class="email_only">View on sreweekly.com</a>
<h2>Articles</h2>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://github.com/Operations-Incident-Board/Postmortem-Report-Reviews/blob/master/2016-04-14-lexelby-Google-Compute-Engine-2016-04-11.md" target="_blank">Postmortem-Report-Reviews/2016-04-14-lexelby-Google-Compute-Engine-2016-04-11.md</a></div>
<div class="sreweekly-description">In April, Google Compute Engine suffered a major outage that was reported here. I wrote up this review for the Operations Incident Board&#8217;s Postmortem Report Reviews project.</div>
</p>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="http://techblog.netflix.com/2016/06/netflix-billing-migration-to-aws.html" target="_blank">The Netflix Tech Blog: Netflix Billing Migration to AWS</a></div>
<div class="sreweekly-description">Migration of a service without downtime can be an incredibly challenging engineering feat. Netflix details their effort to migrate their billing system complete with its rens of terabytes of RDBMS data into EC2. </p>
<blockquote><p>Our primary goal was to define a secure, resilient and granular path for migration to the Cloud, without impacting the member experience.</p></blockquote>
</div>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://virtualizationreview.com/articles/2016/06/17/how-ransomware-changes-backup-and-disaster-recovery.aspx" target="_blank">How Ransomware Changes Backup and Disaster Recovery</a></div>
<div class="sreweekly-description">Ransomware is designed to really ruin your day. It not only corrupts your in-house data; it also tries to encrypt your backup. Even if it&#8217;s off-site. Does your backup/recovery strategy stand up to this kind of failure?</div>
</p>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://victorops.com/blog/real-time-incident-management/" target="_blank">Making the Case for Real-Time Incident Management: Downtime Data and DevOps</a></div>
<div class="sreweekly-description">VictorOps gives us this shiny, number-filled PDF that you can use as ammunition to convince execs that downtime really matters.</div>
</p>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://www.linux.com/news/devops-students-learn-value-uptime-3-am-calls" target="_blank">DevOps Students Learn the Value of Uptime With 3 a.m. Calls</a></div>
<div class="sreweekly-description">Students of <a href="https://www.holbertonschool.com/">Holberton School</a>&#8216;s full-stack engineer curriculum are on-call and actually get paged in the middle of the night. Nifty idea. Why should training in on-call only be on-the-job?</div>
</p>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="http://preaccidentpodcast.podbean.com/e/safety-moment-rumble-strips/" target="_blank">Safety Moment &#8211; Rumble Strips</a></div>
<div class="sreweekly-description">
<blockquote><p>I think the rumble strip is a near-perfect safeguard.</p></blockquote>
<p>That&#8217;s Pre-Accident Podcast&#8217;s Todd Conklin on rumble strips, the warning tracks on the sides of highways. This short (4-minute) podcast asks the question, can we apply the principles behind rumble strips in our infrastructures?</p></div>
</p>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="http://telecomreseller.com/2016/06/24/fcc-adopts-rules-to-promote-reliable-submarine-cable-communications-infrastructure/" target="_blank">FCC Adopts Rules to Promote Reliable Submarine Cable Communications Infrastructure</a></div>
<div class="sreweekly-description">The FCC adds undersea cable operators to the list of mandatory reporters to the NORS (Network Outage Reporting System). But companies such as AT&#038;T <a href="http://www.fiercetelecom.com/story/att-others-say-new-submarine-reporting-rules-flawed-lack-real-analysis/2016-06-24">claim</a> that the reporting will be of limited value, since outages that have no end-user impact (due to redundant underseas links) must still be reported.</div>
</p>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://azure.microsoft.com/en-us/blog/updated-high-availability-and-disaster-recovery-app-design-guidance/" target="_blank">Updated high availability and disaster recovery app design guidance</a></div>
<div class="sreweekly-description">Microsoft updated its article on designing highly available apps using Azure. These kinds of articles are important. In theory, no one ought to go down just because one EC2 or Azure region goes down.</div>
</p>
</div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://signalfx.com/blog/reducing-alert-noise-static-thresholds-durations-transformations/" target="_blank">Reducing Alert Noise</a></div>
<div class="sreweekly-description">SignalFX published this four-part series on avoiding spurious alerts in metric-based monitoring systems. The tutorial bits are specific to SignalFX, but the general principles could be applied to any metric-based alerting system. </p>
<p><small><em>Thanks to Aneel at SignalFX for this one.</em></small></div>
</p>
</div>
<h2>Outages</h2>
<ul class="sreweekly-outages">
<li><a href="http://www.networkworld.com/article/3085040/lan-wan/verizon-blames-routing-error-for-baltimore-911-outage.html">Baltimore, MD, USA 911 (emergency services)</a>
<ul class="sreweekly-outage">
<li class="sreweekly-outage">
<p>Verizon blames a routing error.</p>
</ul>
<li><a href="http://www.fierceonlinevideo.com/story/hbo-now-outage-proves-ott-industry-needs-look-qoe-problems-teeth/2016-06-21">HBO NOW</a>
<ul class="sreweekly-outage">
<li class="sreweekly-outage">
<blockquote><p>HBO Now&#8217;s stream of Game of Thrones sputtered and died just as the most anticipated episode of the season spooled up.</p></blockquote>
</ul>
<li><a href="http://bitcoinist.net/bitfinex-outage-causes-temporary-9-btc-price-plunge/">Bitfinex (Bitcoin exchange)</a>
<ul class="sreweekly-outage">
<li class="sreweekly-outage">
<p>The outage purportedly resulted in a Bitcoin price dip.</p>
</ul>
<li><a href="http://www.theregister.co.uk/2016/06/20/telia_engineer_blamed_massive_net_outage/">Telia (transit provider)</a>
<ul class="sreweekly-outage">
<li class="sreweekly-outage">
<p>This one was big. The Register reports in this article that Telia mistakenly routed Europe&#8217;s traffic to Hong Kong. Many services and providers were impacted including <a href="https://blog.cloudflare.com/a-post-mortem-on-this-mornings-incident/">CloudFlare</a>, <a href="https://status.slack.com/2016-06/6c3be8e735a3355c">Slack</a>, and <a href="http://status.aws.amazon.com/">AWS&#8217;s eu-west-1 region</a>.</p>
</ul>
<li><a href="http://www.gamenguide.com/articles/29364/20160620/overwatch-news-update-blizzard-servers-down-second-time-three-days.htm">Blizzard</a>
<li><a href="http://www.technewstoday.com/30168-linkedin-goes-down-only-two-days-after-microsoft-acquisition/">LinkedIn</a>
<ul class="sreweekly-outage">
<li class="sreweekly-outage">
<p>Just two days after the Microsoft acquisition.</p>
</ul>
<li><a href="http://www.fiercewireless.com/story/verizon-suffers-network-outage-major-florida-markets/2016-06-15">Verizon (Florida, USA)</a>
<li><a href="http://mygaming.co.za/news/business/96107-youtube-hit-with-outage.html">Youtube</a>
<li><a href="http://www.cityam.com/243875/spotify-is-down-users-unable-streaming-music">Spotify</a>
<li><a href="http://www.express.co.uk/entertainment/gaming/682551/PSN-Down-PlayStation-4-offline-PlayStation-Network-Sony">PlayStation Network</a>
<li><a href="http://www.retail-week.com/sectors/fashion/asos-blames-power-outage-for-20-hour-website-crash/7008703.article">Asos.com</a>
<li><a href="http://indianexpress.com/article/technology/tech-news-technology/twitter-suffers-brief-outage-in-india-2872802/">Twitter (India)</a>
<li><a href="http://www.govexec.com/defense/2016/06/computer-crash-wipes-out-years-air-force-investigation-records/129058/">US Air Force Inspector General&#8217;s database</a>
<ul class="sreweekly-outage">
<li class="sreweekly-outage">
<p><small><em>Thanks to Niall for this one.</em></small></p>
</ul>
</ul>
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