[root@localhost ~]# mongod --dbpath=/usr/local/mongodb/data --logpath=/usr/local/mongodb/logs --logappend  --port=27017 --forkabout to fork child process, waiting until server is ready for connections.forked process: 7519ERROR: child process failed, exited with error number 100To see additional information in this output, start without the "--fork" option.

 

创建data目录

cd /usr/local/mongodb/mkdir data

再次启动即可成功

[root@localhost mongodb]# mongod --dbpath=/usr/local/mongodb/data --logpath=/usr/local/mongodb/logs --logappend  --port=27017 --forkabout to fork child process, waiting until server is ready for connections.forked process: 7554child process started successfully, parent exiting

 

 

参考：

https://blog.csdn.net/sinat_30397435/article/details/50774175

https://blog.csdn.net/mangoyiy/article/details/79302711