Wednesday, March 18, 2009 at 7:44AM Evan Weaver from Twitter presented a talk on Twitter software upgrades, titled Improving running components as part of the Systems that never stop track at QCon London 2009 conference last Friday. The talk focused on several upgrades performed since last May, while Twitter was experiencing serious performance problems.
Wednesday, October 15, 2008 at 7:51AM This article explains how Outside.in, the local social network and aggregator, scaled up its service and moved from PHP to Ruby on Rails (they moved maybe because Ruby code seemed to be more maintanable that PHP code?).
The whole article is here on EngineYard blog.
Thursday, January 10, 2008 at 2:31AM In a recent project, I utilized RoR's cookie-based session storage to shard geographically distinct user groups. My technique for doing so was unique and, although it was a premature optimization, it is none-the-less an idea worth exploring.
