OpenID4 items tagged “architecture”
The easiest way to have no-downtime upgrades is have an architecture that can tolerate some subset of their processes to be down at any time. De-SPOF and this gets easier (not that de-SPOFing is always trivial).
— Ryan King 
29th May 2010, 11:36 am
Twitter, an Evolving Architecture. The most detailed write-up of Twitter’s current architecture I’ve seen, explaining the four layers of cache (all memcached) used by the Twitter API. 
28th June 2009, 3:09 pm
Twitter, or Architecture Will Not Save You. Kellan is not an armchair architect. He also doesn’t mention Rails once. Well worth reading. 
29th May 2008, 1:16 am
The GigaOM Interview: Mark Zuckerberg. Some interesting titbits on Facebook’s architecture. 11th March 2008, 5:41 am
