Wow, that is quite an achievement. Could this mean that Java is a better platform than Rails for high scalability needs? Even if that is the case, for simpler scenarios, the beauty of RoR out-weighs Java’s performance. They say that this change will enable them to rapidly iterate on search features in the coming months. That along with the news that Twitter has hired 25 more employees kinda tells that Java’s code base is practically more maintainable than equivalent Ruby code - at least when the code base is huge and the team size is large. Or that could mean that this time they really put a lot of thought into designing a maintainable system than when they started out. But for smaller team size and code base, RoR is still an unbeaten champion.

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