问题描述
我不确定为什么,该服务在昨天才运行良好,突然之间我无法启动MongoDB.
I am not sure why, and the service was working fine just yesterday, all of a sudden I can not get MongoDB to start up.
[root@purr ~]# service mongod start
Starting mongod: Thu Aug 29 23:26:07.550
Thu Aug 29 23:26:07.550 warning: 32-bit servers don't have journaling enabled by default. Please use --journal if you want durability.
Thu Aug 29 23:26:07.550
about to fork child process, waiting until server is ready for connections.
forked process: 5078
all output going to: /var/log/mongo/mongod.log
ERROR: child process failed, exited with error number 100
[FAILED]
我查看了/var/log/mongo/mongod.log及以下内容:
I looked in /var/log/mongo/mongod.log and the following:
***** SERVER RESTARTED *****
Thu Aug 29 23:29:05.874 [initandlisten] MongoDB starting : pid=5118 port=27017 dbpath=/var/lib/mongo 32-bit host=purr.ipetfindr.com
Thu Aug 29 23:29:05.874 [initandlisten]
Thu Aug 29 23:29:05.874 [initandlisten] ** NOTE: This is a 32 bit MongoDB binary.
Thu Aug 29 23:29:05.874 [initandlisten] ** 32 bit builds are limited to less than 2GB of data (or less with --journal).
Thu Aug 29 23:29:05.874 [initandlisten] ** Note that journaling defaults to off for 32 bit and is currently off.
Thu Aug 29 23:29:05.874 [initandlisten] ** See http://dochub.mongodb.org/core/32bit
Thu Aug 29 23:29:05.874 [initandlisten]
Thu Aug 29 23:29:05.874 [initandlisten] ** WARNING: You are running in OpenVZ. This is known to be broken!!!
Thu Aug 29 23:29:05.875 [initandlisten]
Thu Aug 29 23:29:05.875 [initandlisten] db version v2.4.6
Thu Aug 29 23:29:05.875 [initandlisten] git version: b9925db5eac369d77a3a5f5d98a145eaaacd9673
Thu Aug 29 23:29:05.875 [initandlisten] build info: Linux bs-linux32.10gen.cc 2.6.21.7-2.fc8xen #1 SMP Fri Feb 15 12:39:36 EST 2008 i686 BOOST_LIB_VERSION=1_49
Thu Aug 29 23:29:05.875 [initandlisten] allocator: system
Thu Aug 29 23:29:05.875 [initandlisten] options: { config: "/etc/mongod.conf", dbpath: "/var/lib/mongo", fork: "true", logappend: "true", logpath: "/var/log/mongo/mongod.log", pidf$
**************
Unclean shutdown detected.
Please visit http://dochub.mongodb.org/core/repair for recovery instructions.
*************
Thu Aug 29 23:29:05.875 [initandlisten] exception in initAndListen: 12596 old lock file, terminating
Thu Aug 29 23:29:05.875 dbexit:
Thu Aug 29 23:29:05.875 [initandlisten] shutdown: going to close listening sockets...
Thu Aug 29 23:29:05.875 [initandlisten] shutdown: going to flush diaglog...
Thu Aug 29 23:29:05.875 [initandlisten] shutdown: going to close sockets...
Thu Aug 29 23:29:05.875 [initandlisten] shutdown: waiting for fs preallocator...
Thu Aug 29 23:29:05.875 [initandlisten] shutdown: closing all files...
Thu Aug 29 23:29:05.875 [initandlisten] closeAllFiles() finished
Thu Aug 29 23:29:05.875 dbexit: really exiting now
在重新启动服务器时应该如何解决此问题,并且服务似乎无法正常工作.
How should I go about fixing this as restarting the server, and service does not seem to work.
修复后错误
不知道该怎么办,这说明错误无法打开文件/var/lib/mongo/ local.ns 终止
Not sure what to do it is saying something about error couldn't open file /var/lib/mongo/local.ns terminating
***** SERVER RESTARTED *****
Fri Aug 30 04:49:43.041 [initandlisten] MongoDB starting : pid=3300 port=27017 dbpath=/var/lib/mongo 32-bit host=purr.ipetfindr.com
Fri Aug 30 04:49:43.041 [initandlisten]
Fri Aug 30 04:49:43.041 [initandlisten] ** NOTE: This is a 32 bit MongoDB binary.
Fri Aug 30 04:49:43.041 [initandlisten] ** 32 bit builds are limited to less than 2GB of data (or less with --journal).
Fri Aug 30 04:49:43.041 [initandlisten] ** Note that journaling defaults to off for 32 bit and is currently off.
Fri Aug 30 04:49:43.041 [initandlisten] ** See http://dochub.mongodb.org/core/32bit
Fri Aug 30 04:49:43.041 [initandlisten]
Fri Aug 30 04:49:43.041 [initandlisten] ** WARNING: You are running in OpenVZ. This is known to be broken!!!
Fri Aug 30 04:49:43.041 [initandlisten]
Fri Aug 30 04:49:43.041 [initandlisten] db version v2.4.6
Fri Aug 30 04:49:43.041 [initandlisten] git version: b9925db5eac369d77a3a5f5d98a145eaaacd9673
Fri Aug 30 04:49:43.041 [initandlisten] build info: Linux bs-linux32.10gen.cc 2.6.21.7-2.fc8xen #1 SMP Fri Feb 15 12:39:36 EST 2008 i686 BOOST_LIB_VERSION=1_49
Fri Aug 30 04:49:43.041 [initandlisten] allocator: system
Fri Aug 30 04:49:43.041 [initandlisten] options: { config: "/etc/mongod.conf", dbpath: "/var/lib/mongo", fork: "true", logappend: "true", logpath: "/var/log/mongo/mongod.log", pidf$
Fri Aug 30 04:49:43.058 [initandlisten] couldn't open /var/lib/mongo/local.ns errno:13 Permission denied
Fri Aug 30 04:49:43.058 [initandlisten] error couldn't open file /var/lib/mongo/local.ns terminating
Fri Aug 30 04:49:43.059 dbexit:
Fri Aug 30 04:49:43.059 [initandlisten] shutdown: going to close listening sockets...
Fri Aug 30 04:49:43.059 [initandlisten] shutdown: going to flush diaglog...
Fri Aug 30 04:49:43.059 [initandlisten] shutdown: going to close sockets...
Fri Aug 30 04:49:43.059 [initandlisten] shutdown: waiting for fs preallocator...
Fri Aug 30 04:49:43.059 [initandlisten] shutdown: closing all files...
Fri Aug 30 04:49:43.059 [initandlisten] closeAllFiles() finished
Fri Aug 30 04:49:43.059 [initandlisten] shutdown: removing fs lock...
Fri Aug 30 04:49:43.059 dbexit: really exiting now
推荐答案
运行修复程序后,我能够以root用户身份启动mongod处理器,但这意味着service mongod start
无法正常工作.要修复此问题,我需要确保数据库文件夹内的所有文件均已拥有并分组到mongod中.我是通过以下方式做到这一点的:
After running the repair I was able to start the mongod proccessor but as root, which meant that service mongod start
would not work. To repair this issue, I needed to make sure that all the files inside the database folder were owned and grouped to mongod. I did this by the following:
- 检查数据库文件夹中的文件权限
- Check the file permissions inside your database folder
- 请注意,您需要位于dbpath文件夹中
/var/lib/mongo
我去了cd /var/lib
- 我跑了
ls -l mongo
- note you need to be in your dbpath folder mine was
/var/lib/mongo
I went tocd /var/lib
- I ran
ls -l mongo
chown -R mongod:mongod mongo
.这将文件夹中每个文件的所有者和组更改为mongod. (如果使用mongodb软件包,则为chown -R mongodb:mongodb mongodb
)chown -R mongod:mongod mongo
. This changed the owner and group of every file in the folder to mongod. (If using the mongodb package, chown -R mongodb:mongodb mongodb
)我希望这会在将来对其他人有所帮助.
I hope this helps someone else in the future.
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