rabbitmq报错{:query, :rabbit@master1, {:badrpc, :timeout}}

执行rabbitmq-plugins enable rabbitmq_management
报错{:query, :rabbit@master1, {:badrpc, :timeout}}

解决办法：
hostnamectl set-hostname CentOS7

原文：https://www.cnblogs.com/kaka-qiqi/p/14869307.html