MongoDB 的坑 & 如何避免採坑

From:http://blog.rainforestqa.com/2012-11-05-mongodb-gotchas-and-how-to-avoid-them/node 翻譯版看：http://www.csdn.net/article/2012-11-15/2811920-mongodb-quan-gong-luelinux A lot of people hate on MongoDB.

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