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<header class="entry-header cf">
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<h1 class="entry-title" itemprop="headline" ><a href="https://sreweekly.com/sre-weekly-issue-243/">SRE Weekly Issue #243</a></h1>
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<div class="entry-date" itemprop="datePublished" >
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<i class="genericon genericon-day"></i><a class="updated" href="https://sreweekly.com/sre-weekly-issue-243/">November 8, 2020</a>
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<a href="https://sreweekly.com/sre-weekly-issue-243/" title="Permalink to SRE Weekly Issue #243" class="email_only">View on sreweekly.com</a>
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<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;">
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<h2 style="text-align: center; font-size: 80%; color: #909090;">A message from our sponsor, StackHawk:</h2>
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<p>The shift to rapid, frequent deployments over the past decade initially left application security behind. Modern AppSec belongs in the CI/CD pipeline.<br />
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<a href="http://sthwk.com/app-sec-pipeline">http://sthwk.com/app-sec-pipeline</a></p>
|
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</div>
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<h2>Articles</h2>
|
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<div class="sreweekly-entry">
|
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<div class="sreweekly-title"><a href="https://netflixtechblog.com/keeping-netflix-reliable-using-prioritized-load-shedding-6cc827b02f94" target="_blank">Keeping Netflix Reliable Using Prioritized Load Shedding</a></div>
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<div class="sreweekly-description">
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<p>Sometimes I come across a simple but mind-blowingly awesome new idea. This is one of those times.</p>
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<p>During periods of high load and errors, Netflix’s edge load balancer sends feedback to the apps running on users’ devices, adjusting their retry and backoff strategy to keep the service running as smoothly as possible but avoid a thundering herd. Brilliant.</p>
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<p><small>Manuel Correa, Arthur Gonigberg, and Daniel West — Netflix</small></p>
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</div>
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</div>
|
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<div class="sreweekly-entry">
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<div class="sreweekly-title"><a href="https://medium.com/@rakyll/correlation-in-latency-analysis-419357b93287?source=rss-1737b4e67578------2" target="_blank">Correlation in Latency Analysis</a></div>
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<div class="sreweekly-description">
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<blockquote><p>I helped to invent new approaches to correlate telemetry signals (exemplars, correlation between tracing and logging, profiler labels) that helped our engineers to navigate latency problems faster.</p></blockquote>
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</div>
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</div>
|
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<div class="sreweekly-entry">
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<div class="sreweekly-title"><a href="https://engineering.fb.com/video-engineering/live-streaming/" target="_blank">Scaling Live streaming for millions of viewers</a></div>
|
|
<div class="sreweekly-description">
|
|
<p>Facebook has two very different users for live streaming: “normal” users and broadcasters streaming sporting events and the like.</p>
|
|
<p><small>Hemal Khatri, Alex Lambert, Jordi Cenzano and Rodrigo Broilo — Facebook</small></p>
|
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</div>
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</div>
|
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<div class="sreweekly-entry">
|
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<div class="sreweekly-title"><a href="https://dl.acm.org/doi/10.1145/3397880" target="_blank">Debugging incidents in Google’s distributed systems</a></div>
|
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<div class="sreweekly-description">
|
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<blockquote><p>This article covers the outcomes of research performed in 2019 on how engineers at Google debug production issues, including the types of tools, high-level strategies, and low-level tasks that engineers use in varying combinations to debug effectively.</p></blockquote>
|
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<p><small>Charisma Chan and Beth Cooper — Google</small></p>
|
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</div>
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</div>
|
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<div class="sreweekly-entry">
|
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<div class="sreweekly-title"><a href="https://www.researchgate.net/publication/284324002_Basic_patterns_in_how_adaptive_systems_fail" target="_blank">Basic patterns in how adaptive systems fail</a></div>
|
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<div class="sreweekly-description">
|
|
<p>The three patterns discussed in this paper are:</p>
|
|
<ul>
|
|
<li>decompensation</li>
|
|
<li>working at cross purposes</li>
|
|
<li>getting stuck in outdated behaviors</li>
|
|
</ul>
|
|
<p><small>David Woods and Matthieu Branlat</small></p>
|
|
</div>
|
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</div>
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<h2>Outages</h2>
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<ul class="sreweekly-outages">
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<li><a href="https://www.google.com/appsstatus#hl=en&v=issue&sid=1&iid=2dd42ec5167ed9851b146429e2e55c8e">Gmail</a></li>
|
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<li><a href="https://www.cloudpro.co.uk/cloud-essentials/public-cloud/8828/microsoft-365-outage-blamed-on-botched-network-driver-update">Microsoft 365</a></li>
|
|
<li><a href="https://www.cnet.com/news/several-icloud-services-hit-by-outages/">Apple iCloud</a></li>
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<li><a href="https://comicbook.com/movies/news/netflix-outage-europe-november-5-reactions/">Netflix</a></li>
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<li><a href="https://www.githubstatus.com/incidents/4mzhxxpwgvqg">GitHub</a>
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<ul class="sreweekly-outage">
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<li class="sreweekly-outage">Apparently GitHub also had an <a href="https://www.techradar.com/news/github-home-page-down-after-apparent-ssl-fail">expired TLS certificate</a> later in the week.</li>
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</ul>
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</li>
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<li><a href="https://www.itnews.com.au/news/tabcorp-outage-caused-by-power-issue-at-external-data-centre-555617">Tabcorp</a></li>
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