mongodb删除集合后磁盘空间不释放的问题 mongodb删除集合后磁盘空间不释放，只有用db.repairDatabase()去修复才能释放。 但是在修复的过程中如果出现了非正常的mongodb的挂掉， 再次启动时启动不了的，需要先修复才可以， 可以利用./mongod --repair --dbpat
mongodb删除集合后磁盘空间不释放的问题
mongodb删除集合后磁盘空间不释放，只有用db.repairDatabase()去修复才能释放。
但是在修复的过程中如果出现了非正常的mongodb的挂掉，
再次启动时启动不了的，需要先修复才可以，
可以利用./mongod --repair --dbpath=/data/mongo/ www.2cto.com
如果你是把数据库单独的放在一个文件夹中指定dbpath时
就指向要修复的数据库就可以，修复可能要花费很长的时间，
在使用db.repairDatabase()去修复时一定要停掉读写，
并且mongodb要有备机才可以，不然千万不要随便使用
db.repairDatabase()来修复数据库，切记。
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