如何解决因意外造成Mongodb服务非正常关闭且造成Mongod服务无法正常启动？

[henryjia]

我们在使用mongodb时，经常会遇到mongodb服务非正常关闭而无法启动的问题，解决此类问题只需要删除data目录下的*.lock文件，然后再启动Mongod服务就可以了。

[leo]

1.首先删除/var/lib/mongo/目录下的mongod.lock文件，具体命令如下：
rm /var/lib/mongo/mongod.lock  

2.已repair方式启动mongodb，具体命令如下：
mongod -f /etc/mongod.conf --repair  

Fri Jan 24 10:38:39.112   
Fri Jan 24 10:38:39.113 warning: 32-bit servers don't have journaling enabled by default. Please use --journal if you want durability.  
Fri Jan 24 10:38:39.114   
about to fork child process, waiting until server is ready for connections.  
forked process: 2237  
all output going to: /var/log/mongo/mongod.log  
child process started successfully, parent exiting  

3.在启动一次mongodb，具体命令如下：
mongod -f /etc/mongod.conf  
Fri Jan 24 10:41:13.664   
Fri Jan 24 10:41:13.665 warning: 32-bit servers don't have journaling enabled by default. Please use --journal if you want durability.  
Fri Jan 24 10:41:13.666   
about to fork child process, waiting until server is ready for connections.  
forked process: 2253  
all output going to: /var/log/mongo/mongod.log  
child process started successfully, parent exiting  

4.查看进程，如果存在mongodb进程，即代表修复成功，具体命令如下：

ps -ef | grep mongo  
root      2253     1  2 10:41 ?        00:00:02 mongod -f /etc/mongod.conf  
root      2268  2079  0 10:43 pts/0    00:00:00 grep mongo  

[yea]

@leo

讚~ 以後會用到，收藏~

[Adam]

之前還滿常遇到這問題，有詳細解決方法，收藏一下，感謝。