Error: unable to connect to node 'rabbit@devlop-ceilo': nodedown，unabletoconnect

Error: unable to connect to node 'rabbit@devlop-ceilo': nodedown，unabletoconnect

在安装完成rabbitmq的时候,运行修改密码的指令rabbitmqctl change_password guest 123456
出现如下问题:

   Changing password for user "guest" ...
   Error: unable to connect to node 'rabbit@devlop-ceilo': nodedown

   DIAGNOSTICS

    nodes in question: ['rabbit@devlop-ceilo']

    hosts, their running nodes and ports:
    - devlop-ceilo: [{rabbitmqctl4170,57110}]

    current node details:
    - node name: 'rabbitmqctl4170@devlop-ceilo'
    - home dir: /var/lib/rabbitmq
    - cookie hash: LOV2sNIqVbVpplwE+BDftg==

解决办法重启服务就解决：

service rabbitmq-server restart

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