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answers:

1
Q: 

Is twitter still on Rails?

Is twitter still on Rails?

+3  A: 

Check this link - http://highscalability.com/scaling-twitter-making-twitter-10000-percent-faster. It seems that they moved from Ruby to Java based stack. Here you will find more details on the current twitter architecture - http://www.infoq.com/news/2009/06/Twitter-Architecture.

Skarab  2010-09-26 10:32:12
They moved a small part from C to Scala. In particular, they augmented their MySQL database with an in-house Message Queue written in Scala. Most of the stuff that used to be RoR is still RoR.
Jörg W Mittag  2010-09-26 11:41:55

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