我们目前正在开发一个高流量的Rails应用程序与facebooker（Facebook游戏）。 由于亚马逊的SimpleDB（AWS-SDB）实在是太慢了，我们正在考虑使用专用的MongoDB服务器提供的mongoHQ例如。

we are currently developing a high traffic rails application with facebooker (facebook game). since amazon simpledb (aws-sdb) is really slow, we are thinking of using a dedicated mongodb server as offered by mongoHQ for example.

问题：

谢谢， MZ

推荐答案

MongoDB的，因为1.4可以很容易饱和了大量的内核。你不再需要启动每个核心的mongod。

MongoDB since 1.4 can very easily saturate a large number of cores. You no longer need to start a mongod per core.