Very briefly about the most interesting thesis of Master Class Alexis Fisher ( 150 million. users)
Bases for the construction of highly scalable web projects

Configuration: nginx + php-fpm + mysql + eAccelerator + memcached.
  • NO common data via NFS (sessions, code) => local copies, sessions in memcached
  • NO heavy writes into shared db real-time => if possible, async messages
  • NO local cache => global cache
  • Minimize the work to a local disk (Eg php session)
  • SSD