我需要安装一个具有大量数据存储的 mongodb 实例。我们有一个数百 TB 的 Lustre FS,但是当 monogdb 启动时显示此错误:
Mon Jul 15 12:06:50.898 [initandlisten] exception in initAndListen: 10310 Unable to lock file: /var/lib/mongodb/mongod.lock. Is a mongod instance already running?, terminating
Mon Jul 15 12:06:50.898 dbexit:
但是权限应该没问题:
# ls -lart /project/mongodb/
total 8
drwxr-xr-x 19 root root 4096 Jul 15 11:12 ..
-rwxr-xr-x 1 mongod mongod 0 Jul 15 11:54 mongod.lock
drwxr-xr-x 2 mongod mongod 4096 Jul 15 12:10 .
并且没有其他正在运行的进程:
# ps -fu mongod
UID PID PPID C STIME TTY TIME CMD
#
有没有人这样做(Lustre + mongodb)?
# rm mongod.lock
rm: remove regular empty file `mongod.lock'? y
# ls -lrt
total 0
# ls -lart
total 8
drwxr-xr-x 19 root root 4096 Jul 15 11:12 ..
drwxr-xr-x 2 mongod mongod 4096 Jul 15 12:10 .
# ps aux | grep mongod
root 25865 0.0 0.0 103296 884 pts/15 S+ 13:04 0:00 grep mongod
# service mongod start
Starting mongod: about to fork child process, waiting until server is ready for connections.
forked process: 25935
all output going to: /var/log/mongo/mongod.log
ERROR: child process failed, exited with error number 100
[FAILED]