GitHub's 7h47m outage was a capacity failure: here's the post-mortem
On August 17, GitHub went down for 7 hours 47 minutes, taking out auth, Actions, APIs, pull requests and Copilot for developers worldwide. Neither this nor the August 6 outage was a code or config change: both were capacity failures as monthly commits doubled from 1.4B to 2.9B. GitHub has added 3M CPU cores and moved 58% of platform load to Azure, with linear read-scaling for monorepos next. The uncomfortable lesson: growth outpaced the architecture that served it.