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<h1 class="entry-title" itemprop="headline" ><a href="https://sreweekly.com/sre-weekly-issue-440/">SRE Weekly Issue #440</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-440/">September 1, 2024</a>
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<a class="email_only" href="https://sreweekly.com/sre-weekly-issue-440/">View on sreweekly.com</a>
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<h2 style="text-align: center;font-size: 80%;color: #909090;">A message from our sponsor, <a href="https://firehydrant.com/">FireHydrant</a>:</h2>
<p>Migrate off of PagerDuty, save money, and then have all of your configuration exported as Terraform modules? We did that. We know one of the hardest parts of leaving a legacy tool is the old configuration, that&#8217;s why we dedicated time to build the Signals migrator, making it easy to switch.</p>
<p><a href="https://firehydrant.com/blog/speedrun-to-signals-automated-migrations-are-here/">https://firehydrant.com/blog/speedrun-to-signals-automated-migrations-are-here/</a></p>
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<div class="sreweekly-title"><a href="https://incident.io/blog/continually-testing-our-product-with-smoke-tests" target="_blank" rel="noopener">Continually testing our product with smoke tests</a></div>
<div class="sreweekly-description"><p>As part of designing their new paging product, incident.io created a set of end-to-end tests to exercise the system and alert on failures. Click through for details on how they designed the tests and lessons learned.</p>
<p>&nbsp;&nbsp;<small>Rory Malcolm &mdash; incident.io</small></p></div></div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://slack.engineering/unified-grid-how-we-re-architected-slack-for-our-largest-customers/" target="_blank" rel="noopener">Unified Grid: How We Re-Architected Slack for Our Largest Customers</a></div>
<div class="sreweekly-description"><p>As Slack rolled out their new experience for large, multi-workspace customers, they had to re-work fundamental parts of their infrastructure, including database sharding.</p>
<p>&nbsp;&nbsp;<small>Ian Hoffman and Mike Demmer &mdash; Slack</small></p></div></div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://status.heroku.com/incidents/2678" target="_blank" rel="noopener">Heroku incident 2678 Followup: Issues with Essential Tier Databases in EU region</a></div>
<div class="sreweekly-description"><blockquote>
<p>A third-party vendor’s Support Engineer [&#8230;] acknowledged that the root cause for both outages was a monitoring agent consuming all available resources. </p>
</blockquote>
<p>&nbsp;&nbsp;<small>Heroku</small></p></div></div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://www.infoq.com/articles/adapt-surprises-software-reliant-businesses/" target="_blank" rel="noopener">Prepare to Be Unprepared: Investing in Capacity to Adapt to Surprises in Software-Reliant Businesses </a></div>
<div class="sreweekly-description"><p>Resilience engineering is about focusing on making your organization better able to handle the unexpected, rather than preventing repetition of the same incident. This article gives a thought-provoking overview of the difference.</p>
<p>&nbsp;&nbsp;<small>John Allspaw &mdash; InfoQ</small></p></div></div>
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<div class="sreweekly-title"><a href="https://jaywhy13.hashnode.dev/3-reasons-traces-better-than-metrics-for-debugging-your-application" target="_blank" rel="noopener">3 reasons traces are better than metrics for debugging</a></div>
<div class="sreweekly-description"><blockquote>
<p>Metrics are great for many other things, but they can&#8217;t compete with traces for investigating problems.</p>
</blockquote>
<p>&nbsp;&nbsp;<small>Jean-Mark Wright</small></p></div></div>
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<div class="sreweekly-title"><a href="https://medium.com/yandex/good-retry-bad-retry-an-incident-story-648072d3cee6" target="_blank" rel="noopener">Good Retry, Bad Retry: An Incident Story</a></div>
<div class="sreweekly-description"><p>Through fictional storytelling, this article explains not just the benefits of retries, but how they can go wrong.</p>
<p>&nbsp;&nbsp;<small>Denis Isaev &mdash; Yandex</small></p></div></div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://mccue.dev/pages/8-16-24-just-use-postgres" target="_blank" rel="noopener">Just use Postgres</a></div>
<div class="sreweekly-description"><p>Hot take? Sure, but they back it up with a well-reasoned argument.</p>
<p>&nbsp;&nbsp;<small>Ethan McCue</small></p></div></div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://www.warpstream.com/blog/dealing-with-rejection-in-distributed-systems" target="_blank" rel="noopener">Dealing with rejection (in distributed systems)</a></div>
<div class="sreweekly-description"><p>A detailed look at the importance of backpressure and how to use it to reduce load effectively, as implemented in WarpStream.</p>
<p>&nbsp;&nbsp;<small>Richard Artoul &mdash; WarpStream</small></p></div></div>
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