Relevant[1] front-page discussion. [1]http://highscalability.com/blog/2013/7/8/the-architecture-twitter-uses-to-deal-with-150m-active-users.html http://highsca

Relevant[1] front-page discussion. [1]http://highscalability.com/blog/2013/7/8/the-architecture-twitter-uses-to-deal-with-150m-active-users.html http://highscalability.com/blog/2013/7/8/the-architecture-tw...