启动MongoDB报错child process failed, exited with error number 1

启动MongoDB报错，信息如下：

[root@ycyzharry script]# sh start_mongodb.sh
about to fork child process, waiting until server is ready for connections.
forked process: 13361
ERROR: child process failed, exited with error number 1
To see additional information in this output, start without the "--fork" option.

解决办法：

1 检查是否日志占满了磁盘空间。

2 删除/data/db/mongo.lock文件，重启MongoDB。

如下表示启动成功：

[root@ycyzharry script]# sh start_mongodb.sh
about to fork child process, waiting until server is ready for connections.
forked process: 21617
child process started successfully, parent exiting