Facebook Seattle Engineering Road Show: Mike Shroepfer on Engineering at Scale at Facebook
From the presentation in Oct 09 at UW.

CAP Theorem « Streamy Development Blog
If you’re talking or thinking about distributed data systems these days, you are almost certain to come across some discussion of the CAP theorem. This is one of those beautifully simplistic ideas that helps explain something extraordinarily complex.

Queue everything and delight everyone – 0xDECAFBAD
queueing de tareas en web apps

How We Made GitHub Fast - GitHub
Now that things have settled down from the move to Rackspace, I wanted to take some time to go over the architectural changes that we’ve made in order to bring you a speedier, more scalable GitHub.

How Ravelry Scales to 10 Million Requests Using Rails | High Scalability
Tim Bray has a wonderful interview with Casey Forbes, creator of Ravelry, a Ruby on Rails site supporting a 400,000+ strong community of dedicated knitters and crocheters.

"We use memcached as a poor man’s message bus."
"The web browser polls a URL which checks a memcached key. If there’s no data cached, the request returns and polls again in a few seconds. If there is data, the request returns with it and the browser merrily goes about its business. On the other...