执行rabbitmq-plugins enable rabbitmq_management报错如下
Plugin configuration unchanged.
Applying plugin configuration to rabbit@hj... failed.
Could not contact node rabbit@hj. Changes will take effect at broker restart.
Options: --online - fail if broker cannot be contacted. --offline - do not try to contact broker.
最后是版本不和的问题
因为我是编译安装的，然后用yum 安装就好了
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