[问题解决] 启动mongod 时，出现addr already in use错误

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错误：

启动mongod

 root@wangyuyu-Vostro-:/usr/bin# ./mongod

错误提示：

Sat Aug  :: [initandlisten] ERROR: listen(): bind() failed errno: Address already in use for socket: 0.0.0.0:

Sat Aug  :: [initandlisten] ERROR:   addr already in use

原因：

启动mongod时端口被占用。

解决方案：

使用命令

root@wangyuyu-Vostro-:/usr/bin# netstat -anp|more

可以看到客户端还保持着与服务器的连接

Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name

tcp               127.0.0.1:         0.0.0.0:*               LISTEN      /mongod

tcp               127.0.0.1:            0.0.0.0:*               LISTEN      /dnsmasq

tcp               127.0.0.1:           0.0.0.0:*               LISTEN     /cupsd

tcp               127.0.0.1:         0.0.0.0:*               LISTEN      /mongod

tcp               192.168.5.124:     91.189.89.144:        CLOSE_WAIT  /ubuntu-geoip-p

tcp               192.168.5.124:     220.181.111.24:       FIN_WAIT1   -

tcp               192.168.5.124:     219.148.35.218:       ESTABLISHED /firefox

杀死953进程

root@wangyuyu-Vostro-:/usr/bin# kill -

再次察看服务器链接状态：

Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name

tcp               127.0.0.1:            0.0.0.0:*               LISTEN      /dnsmasq

tcp               127.0.0.1:           0.0.0.0:*               LISTEN      /cupsd

tcp               192.168.5.124:     61.172.207.130:       TIME_WAIT   -

tcp               192.168.5.124:     91.189.89.144:        CLOSE_WAIT  /ubuntu-geoip-p

tcp               192.168.5.124:     117.79.157.237:       TIME_WAIT   -

OK已经成功杀掉进程。

root@wangyuyu-Vostro-:/usr/bin# ./mongod

Sat Aug  :: [initandlisten] waiting for connections on port

Sat Aug  :: [websvr] admin web console waiting for connections on port

问题解决。