【rabbitmq】Warning: PID file not written; -detached was passed. ERROR: node with name "rabbit" alread

场景：

使用 sudo rabbitmq-server -detached命令启动rabbitmq时，出现以下提示

Warning: PID file not written; -detached was passed.

ERROR: node with name "rabbit" already running

但是，通过命令sudo rabbitmqctl status又提示rabbitmq没有启动

解决：

ps aux | grep erl

kill -9 该进程

参考：

http://stackoverflow.com/questions/8737754/node-with-name-rabbit-already-running-but-also-unable-to-connect-to-node