THE AUGUST 17 OUTAGE, AND THE WORK AHEAD

Summary from the TLDR DevOps newsletter

GitHub's 7-hour-and-47-minute outage on August 17 began when record traffic overwhelmed a critical Central US infrastructure component that failed to scale, triggering authentication failures and cascading service disruption. Recovery was complicated by a client-side retry loop in Copilot. GitHub is responding with stricter retry budgets and timeouts, more capacity, fewer shared dependencies, and continued migration to Azure, which now serves about 58% of platform load.