RoR, apparently. http://highscalability.com/blog/2012/10/4/linkedin-moved-from-rails-to-node-27-servers-cut-and-up-to-2.html http://highscalability.com/blog/20

RoR, apparently. http://highscalability.com/blog/2012/10/4/linkedin-moved-from-rails-to-node-27-servers-cut-and-up-to-2.html http://highscalability.com/blog/2012/10/4/linkedin-moved-fro...