[大数据]记 RabbitMQ 安装及配置发生的错误

[root@controller ~]# rabbitmqctl status
Status of node rabbit@1
Error: unable to connect to node rabbit@1: nodedown

DIAGNOSTICS
===========

attempted to contact: [rabbit@1]

rabbit@1:
? * unable to connect to epmd (port 4369) on 1: badarg (unknown POSIX error)

current node details:
- node name: 'rabbitmq-cli-41@controller'
- home dir: /var/lib/rabbitmq
- cookie hash: PLT+NAsw/HZQoAPDugcOsw==

?错误如上：

我的解决方法如下：因为我是虚拟机所以我直接删除了

rm -rf /var/lib/rabbitmq/mnesia/rabbit\@controller/*

不知道为什么。