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<h1 class="entry-title" itemprop="headline" ><a href="https://sreweekly.com/sre-weekly-issue-482/">SRE Weekly Issue #482</a></h1>
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<i class="genericon genericon-day"></i><a class="updated" href="https://sreweekly.com/sre-weekly-issue-482/">June 22, 2025</a>
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<h2 style="text-align: center;font-size: 80%;color: #909090;">A message from our sponsor, <a href="https://pagerduty.com/">PagerDuty</a>:</h2>
<p>Incidents move fast. But you’ll never get left behind with PagerDuty’s GenAI incident response assistant, available in all paid plans. Get instant business impact analysis, troubleshooting steps, and auto-drafted status updates—directly in Slack. Stop context-switching, start resolving faster.</p>
<p><a href="https://fnf.dev/4dZ5V36">https://fnf.dev/4dZ5V36</a></p>
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<div class="sreweekly-title"><a href="https://help.salesforce.com/s/articleView?id=005036674&#038;type=1" target="_blank" rel="noopener">Service Disruption on multiple Salesforce services on June 10-11, 2025</a></div>
<div class="sreweekly-description"><p>Salesforce posted an analysis of their major outage on June 10. An autmated update restarted networking, and routing rules ended up in a bad state. This is remarkably similar to Datadog&#8217;s <a href="https://www.datadoghq.com/blog/2023-03-08-multiregion-infrastructure-connectivity-issue/">incident in March of 2023</a>.</p>
<p>&nbsp;&nbsp;<small>Salesforce.</small></p></div></div>
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<div class="sreweekly-title"><a href="https://surfingcomplexity.blog/2025/05/25/llms-are-weird-man/" target="_blank" rel="noopener">LLMs are weird, man</a></div>
<div class="sreweekly-description"><p>In this article, the author likens LLMs to magic, in that they&#8217;re a black box in some ways. That has implications for how we go about building reliable systems around them.</p>
<p>&nbsp;&nbsp;<small>Lorin Hochstein</small></p></div></div>
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<div class="sreweekly-title"><a href="https://uptimelabs.io/when-uptime-met-downtime-my-journey-from-engineer-to-executive-a-retrospective-commentary/" target="_blank" rel="noopener">When Uptime Met Downtime: My Journey from Engineer to Executive (A Retrospective Commentary)</a></div>
<div class="sreweekly-description"><p>An executive learns a valuable lesson about the ways they can be useful during an incident &mdash; and ways they might inadvertently cause disruption.</p>
<p>&nbsp;&nbsp;<small>Hamed Silatani &mdash; Uptime Labs</small></p></div></div>
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<div class="sreweekly-title"><a href="https://muratbuffalo.blogspot.com/2025/06/analyzing-metastable-failures-in.html" target="_blank" rel="noopener">Analyzing Metastable Failures in Distributed Systems</a></div>
<div class="sreweekly-description"><p>This article is a summary of a new paper on how to figure out if your system is susceptible to metastable failure modes.</p>
<p>&nbsp;&nbsp;<small>Murat Demirbas</small></p></div></div>
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<div class="sreweekly-title"><a href="https://feeds.dzone.com/link/23568/17050330/engineering-resilience-data-cfr-monitoring" target="_blank" rel="noopener">Engineering Resilience Through Data: A Comprehensive Approach to Change Failure Rate Monitoring</a></div>
<div class="sreweekly-description"><blockquote>
<p>This article explores how modern teams can effectively implement, track, and leverage CFR [Change Failure Rate] to drive continuous improvement in their delivery pipelines.</p>
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<p>&nbsp;&nbsp;<small> Saumen Biswas &mdash; DZone</small></p></div></div>
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<div class="sreweekly-title"><a href="https://dzone.com/articles/circuit-breaker-pattern-resilient-systems" target="_blank" rel="noopener">Understanding the Circuit Breaker: A Key Design Pattern for Resilient Systems</a></div>
<div class="sreweekly-description"><p>A primer on the theory and practice of circuit breakers, including example code using Resilience4j.</p>
<p>&nbsp;&nbsp;<small> Narendra Lakshmana gowda &mdash; DZone</small></p></div></div>
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<div class="sreweekly-title"><a href="https://medium.com/airbnb-engineering/load-testing-with-impulse-at-airbnb-f466874d03d2?source=rss----53c7c27702d5---4" target="_blank" rel="noopener">Load Testing with Impulse at Airbnb</a></div>
<div class="sreweekly-description"><p>Airbnb introduces their internal load testing framework, Impulse, and shares details about how they perform load testing at scale.</p>
<p>&nbsp;&nbsp;<small>Chenhao Yang &mdash; Airbnb</small></p></div></div>
<div class="sreweekly-entry">
<div class="sreweekly-title"><a href="https://engineering.hellofresh.com/taming-complexity-hellofreshs-playbook-for-managing-large-scale-programs-part-1-3-cdf06c5a6ed9" target="_blank" rel="noopener">Taming Complexity: HelloFresh’s Playbook for Managing Large-Scale Programs (Part 1/3)</a></div>
<div class="sreweekly-description"><p>In this first of a three-part series, HelloFresh introduces their effort to manage complexity. They start by showing what they stand to gain and then introduce high-level strategies.</p>
<p>&nbsp;&nbsp;<small>Konstantin Rohleder &mdash; HelloFresh</small></p></div></div>
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