http://blog.mongodb.org/post/137788967/32-bit-limitations
MongoDB는 32bit OS에서 data파일이 2GB 로 제한된다. MSSQL이 이 문제를 해결하기 위해 다른 처리가 있었던 것과 대조되지만.. 64bit OS 를 설치하면 된다. 참고하자. 아래는 원문내용이다.
32-bit MongoDB processes are limited to about 2 gb of data. This has come as a surprise to a lot of people who are used to not having to worry about that. The reason for this is that the MongoDB storage engine uses memory-mapped files for performance.
By not supporting more than 2gb on 32-bit, we've been able to keep our code much simpler and cleaner. This greatly reduces the number of bugs, and reduces the time that we need to release a 1.0 product. The world is moving toward all 64-bit very quickly. Right now there aren't too many people for whom 64-bit is a problem, and in the long term, we think this will be a non-issue.
