为什么在 Linux 上出现错误 mongod dead 但 subsys 被锁定和日志(log)文件可用空间不足

我已经在Linux CentOS服务器上安装了mongo-10gen mongo-10gen-server.

我从Link步开始.

我已将/etc/mongod.conf配置为-

logpath=/var/log/mongo/mongod.log
port=27017
dbpath=/var/lib/mongo

我已经在iptables分钟内为mongo设置了27017端口.

service mongod start and
mongo

它开始得很好，但几天后我就发现了错误-

Tue Jan 29 08:41:54 [initandlisten] ERROR: Insufficient free space for journal files
Tue Jan 29 08:41:54 [initandlisten] Please make at least 3379MB available in /var/lib/mongo/journal or use --smallfiles
Tue Jan 29 08:41:54 [initandlisten]
Tue Jan 29 08:41:54 [initandlisten] exception in initAndListen: 15926 Insufficient free space for journals, terminating
Tue Jan 29 08:41:54 dbexit:
Tue Jan 29 08:41:54 [initandlisten] shutdown: going to close listening sockets...
Tue Jan 29 08:41:54 [initandlisten] shutdown: going to flush diaglog...
Tue Jan 29 08:41:54 [initandlisten] shutdown: going to close sockets...
Tue Jan 29 08:41:54 [initandlisten] shutdown: waiting for fs preallocator...
Tue Jan 29 08:41:54 [initandlisten] shutdown: lock for final commit...
Tue Jan 29 08:41:54 [initandlisten] shutdown: final commit...
Tue Jan 29 08:41:54 [initandlisten] shutdown: closing all files...
Tue Jan 29 08:41:54 [initandlisten] closeAllFiles() finished
Tue Jan 29 08:41:54 [initandlisten] journalCleanup...
Tue Jan 29 08:41:54 [initandlisten] removeJournalFiles
Tue Jan 29 08:41:54 [initandlisten] shutdown: removing fs lock...
Tue Jan 29 08:41:54 dbexit: really exiting now

当我执行命令时-

service mongod status

这会产生错误-

mongod dead but subsys locked

请帮我解决mongod dead but subsys locked和Insufficient free space for journals, terminating的问题