みんな大好きGitHubのサーバー構成

We currently have 33 physical servers at Rackspace:

  • 2 database (mysql, redis)
  • 6 frontend (rails, resque)
  • 18 file server (9 pairs: masters serve git data, slaves run memcache)
  • search
  • xen (load balancer, ci, pages, service hooks, etc)
  • staging
GitHub: How many physical/virtual servers does GitHub have? - Quora

意外とコンパクト。