(rpm) mongodb resolves couldn ' t connect to server 127.0.0.1:27017 src/mongo/shell/mongo.js:91 error __JS

Turn from: http://hi.baidu.com/zwfec/item/3cfecfabafda3a258819d38b

Today, look at the server, found that Mongod start not up, prompted

Sun June 2 12:27:02 error:couldn ' t connect to server 127.0.0.1:27017 src/mongo/shell/mongo.js:91

Error

Look up the solution on the Internet, most people say set up dbpath, this is to solve the problem, but not to find the root cause of the problem,

The root of the problem is that the machine illegal shutdown caused by illegal mongod, left, a mongod.lock, the database to lock, as long as the deletion of this file, restart the service can,

[root@xxx mongodb]# rm mongod.lock-rf

If the problem is not resolved, please leave a message, if resolved also please leave a message, haha.