old lock file: \data\db\mongod.lock, probably means unclean shutdown
When Staring the mongoDB server, it hits below errors, and the mongoDB server is unable to start.
**************
old lock file: \data\db\mongod.lock. probably means unclean shutdown
recommend removing file and running --repair
see: http://dochub.mongodb.org/core/repair for more information
*************
Mon May 09 12:37:43 [initandlisten] exception in initAndListen std::exception: old lock file,
terminating
Mon May 09 12:37:43 dbexit:
Mon May 09 12:37:43 [initandlisten] shutdown: going to close listening sockets...
Mon May 09 12:37:43 [initandlisten] shutdown: going to flush diaglog...
Mon May 09 12:37:43 [initandlisten] shutdown: going to close sockets...
Mon May 09 12:37:43 [initandlisten] shutdown: waiting for fs preallocator...
Mon May 09 12:37:43 [initandlisten] shutdown: closing all files...
Mon May 09 12:37:43 closeAllFiles() finished
Mon May 09 12:37:43 dbexit: really exiting now
Solution
This is a common error message if mongoDB machine is crashed or kill -9
command is issued. In short, your mongoDB is crashed, you have to repair it. To fix it :
1. Find the data-directory\mongod.lock
file, and delete it.
2. Issue mongod --repair
command.
mongod --repair
Mon May 09 12:42:57 [initandlisten] db version v1.8.1, pdfile version 4.5
//......
Mon May 09 12:42:57 [initandlisten] shutdown: going to close listening sockets...
Mon May 09 12:42:57 [initandlisten] shutdown: going to flush diaglog...
Mon May 09 12:42:57 [initandlisten] shutdown: going to close sockets...
Mon May 09 12:42:57 [initandlisten] shutdown: waiting for fs preallocator...
Mon May 09 12:42:57 [initandlisten] shutdown: closing all files...
Mon May 09 12:42:57 closeAllFiles() finished
Mon May 09 12:42:57 [initandlisten] shutdown: removing fs lock...
Mon May 09 12:42:57 dbexit: really exiting now
Note
For more detail about how mongodb repair works, please refer to this MongoDB Durability and Repair guide.
For more detail about how mongodb repair works, please refer to this MongoDB Durability and Repair guide.
It does work well in recovering the data. However after every few days, I have to run repair. We shutdown by Control-C. Any permanent fix for this?
Thanks
Thanks, it works :).
thank you it helps me……..
Thank you about document. It’s helpfull for me.
Very very helpful information for beginers !