mongodb 关闭无法正常启动， use

yuanqiao

　　Tue Aug 21 09:12:20
Tue Aug 21 09:12:20 warning: 32-bit servers don't have journaling enabled by default. Please use --journal if you want durability.
Tue Aug 21 09:12:20
Tue Aug 21 09:12:20 [initandlisten] MongoDB starting : pid=1192 port=27017 dbpath=/Users/mc2/mongo/db 32-bit host=localhost
Tue Aug 21 09:12:20 [initandlisten]
Tue Aug 21 09:12:20 [initandlisten] ** NOTE: when using MongoDB 32 bit, you are limited to about 2 gigabytes of data
Tue Aug 21 09:12:20 [initandlisten] **       see http://blog.mongodb.org/post/137788967/32-bit-limitations
Tue Aug 21 09:12:20 [initandlisten] **       with --journal, the limit is lower
Tue Aug 21 09:12:20 [initandlisten]
Tue Aug 21 09:12:20 [initandlisten] db version v2.0.2, pdfile version 4.5
Tue Aug 21 09:12:20 [initandlisten] git version: 514b122d308928517f5841888ceaa4246a7f18e3
Tue Aug 21 09:12:20 [initandlisten] build info: Darwin broadway.local 9.8.0 Darwin Kernel Version 9.8.0: Wed Jul 15 16:55:01 PDT 2009; root:xnu-1228.15.4~1/RELEASE_I386 i386 BOOST_LIB_VERSION=1_40
Tue Aug 21 09:12:20 [initandlisten] options: { dbpath: "/Users/mc2/mongo/db", logpath: "/Users/mc2/mongo/log.log" }
**************
Unclean shutdown detected.
Please visit http://dochub.mongodb.org/core/repair for recovery instructions.
*************
Tue Aug 21 09:12:20 [initandlisten] exception in initAndListen: 12596 old lock file, terminating
Tue Aug 21 09:12:20 dbexit:
Tue Aug 21 09:12:20 [initandlisten] shutdown: going to close listening sockets...
Tue Aug 21 09:12:20 [initandlisten] shutdown: going to flush diaglog...
Tue Aug 21 09:12:20 [initandlisten] shutdown: going to close sockets...
Tue Aug 21 09:12:20 [initandlisten] shutdown: waiting for fs preallocator...
Tue Aug 21 09:12:20 [initandlisten] shutdown: closing all files...
Tue Aug 21 09:12:20 [initandlisten] closeAllFiles() finished
Tue Aug 21 09:12:20 dbexit: really exiting now
造成原因
ps aux|grep mongol
kill -9
这个强行杀进程的办法会导致mongodb 数据库出现无法启动的情况。
正确的关闭数据库方式为
use admin
db.shutdownServer()
也可以按照文档粗暴的杀掉它，它内部应该有KILL信号处理程序。
killall mongod
请不要 kill -9 会发生最后文件损坏的情况。
解决方法：进入 mongod 上一次启动的时候指定的 data 目录  --dbpath=/Users/mc2/mongo/db
  
cd /Users/mc2/mongo/db
  
  
  
删除掉该文件:
  
rm /Users/mc2/mongo/db/mongo.lock
  
再执行:
  
./mongod  --repair
  
启动
bin/mongod -dbpath /Users/mc2/mongo/db -logpath /Users/mc2/mongo/log.log &
  
礼成
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