Memory Leak in Opscode Chef Daemon

At Lucidchart, we use Opscode's Chef to manage all of our servers, and have been since early 2012. We've used the same version of Ruby and Chef the whole time - no upgrades, downgrades, or new modules. Out of nowhere, every one of our servers start running out of memory. It caused our production site to run slow, servers to fail health checks, and the ops team to scramble.

VPC Migration: Post Mortem

All done! Every last one of the servers is running inside of Amazon's VPC. For the most part, everything went as expected. There are just a few loose ends I'd like to note.