mongodb 32系统安装失败问题
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32位系统 在安装完成后 运行mongod --dbpath c:datadb后，没有如愿以偿出现端口数字27017，出现了如下的报错
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D:GREENT~1PowerCmd>mongod --auth -dbpath C:mongoMongoDBmongodata
Wed May 16 16:06:50
Wed May 16 16:06:50 warning: 32-bit servers don‘t have journaling enabled by default. Please use --journal if you want durability.
Wed May 16 16:06:50
Wed May 16 16:06:50 [initandlisten] MongoDB starting : pid=5016 port=27017 dbpath=C:mongoMongoDBmongodata 32-bit host=mxh
Wed May 16 16:06:50 [initandlisten]
Wed May 16 16:06:50 [initandlisten] ** NOTE: when using MongoDB 32 bit, you are limited to about 2 gigabytes of data
Wed May 16 16:06:50 [initandlisten] ** see http://blog.mongodb.org/post/137788967/32-bit-limitations
Wed May 16 16:06:50 [initandlisten] ** with --journal, the limit is lower
Wed May 16 16:06:50 [initandlisten]
Wed May 16 16:06:50 [initandlisten] db version v2.0.1, pdfile version 4.5
Wed May 16 16:06:50 [initandlisten] git version: 3a5cf0e2134a830d38d2d1aae7e88cac31bdd684
Wed May 16 16:06:50 [initandlisten] build info: windows (5, 1, 2600, 2, ‘Service Pack 3‘) BOOST_LIB_VERSION=1_42
Wed May 16 16:06:50 [initandlisten] options: { auth: true, dbpath: "C:mongoMongoDBmongodata" }
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Unclean shutdown detected.
Please visit http://dochub.mongodb.org/core/repair for recovery instructions.
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Wed May 16 16:06:51 [initandlisten] exception in initAndListen: 12596 old lock file, terminating
Wed May 16 16:06:51 dbexit:
Wed May 16 16:06:51 [initandlisten] shutdown: going to close listening sockets...
Wed May 16 16:06:51 [initandlisten] shutdown: going to flush diaglog...
Wed May 16 16:06:51 [initandlisten] shutdown: going to close sockets...
Wed May 16 16:06:51 [initandlisten] shutdown: waiting for fs preallocator...
Wed May 16 16:06:51 [initandlisten] shutdown: closing all files...
Wed May 16 16:06:51 [initandlisten] closeAllFiles() finished
Wed May 16 16:06:51 dbexit: really exiting now
主要的错误提示 ：MongoDB错误32-bit servers don‘t have journaling enabled by default 和 Wed May 16 16:06:51 dbexit: really exiting now
可以在之前的命令后加入 --repair ，即mongod --dbpath c:data/db --repair。最后成功！
出现waiting for connections on port 27017
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