Velocity 09: John Adams, "Fixing Twitter: Improving the Performance and Scalability"
Twitter (twitter.com) is a micro-blogging service that allows users to answer the question “What are you doing?”. It takes a simple 140 character string (a tweet), and distributes that to a user’s following (or “friends”) list. Over the last few years, Twitter has experienced a variety of challenges scaling its site to serve millions and millions of users. From hos...