LISA '10 - Operations at Twitter: Scaling Beyond 100 Million Users

Talk given by John Adams of Twitter at the 24th Large Installation System Administration Conference (LISA '10). John covered many aspects of Twitter's scaling efforts, including: * Finding the weak points in Ruby on Rails and repairing them * In-house peer-to-peer: High-speed deploys across thousands of machines in no time at all * Managing thousands of machines: Why you need a central machine database, now * User management: How do you onboard many new developers and still remain fault-tolerant? * Caching methodologies and Twitter's open source efforts * Asynchronous versus synchronous processing during request lifetime * Life after syslog: What do you do when it won't work anymore?