执行rabbitmqctl相关指令报如下错误。查了一遍百度， 都是cookie的问题， 但是呢， 并没有没给出linux相关的解决文案, 折腾了很久

然后重启， 于是解决了

只是用户丢失了>>>>

不知道什么原因导致的

Status of node rabbit@k8s-node-heye-27 ...
Error: unable to perform an operation on node 'rabbit@k8s-node-heye-27'. Please see diagnostics information and suggestions below.

Most common reasons for this are:

 * Target node is unreachable (e.g. due to hostname resolution, TCP connection or firewall issues)
 * CLI tool fails to authenticate with the server (e.g. due to CLI tool's Erlang cookie not matching that of the server)
 * Target node is not running

In addition to the diagnostics info below:

 * See the CLI, clustering and networking guides on http://rabbitmq.com/documentation.html to learn more
 * Consult server logs on node rabbit@k8s-node-heye-27

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

attempted to contact: ['rabbit@k8s-node-heye-27']

rabbit@k8s-node-heye-27:
  * connected to epmd (port 4369) on k8s-node-heye-27
  * epmd reports node 'rabbit' uses port 25672 for inter-node and CLI tool traffic 
  * TCP connection succeeded but Erlang distribution failed 

  * Hostname mismatch: node "rabbit@localhost" believes its host is different. Please ensure that hostnames resolve the same way locally and on "rabbit@localhost"

Current node details:
 * node name: 'rabbitmqcli-72751-rabbit@k8s-node-heye-27'
 * effective user's home directory: /var/lib/rabbitmq
 * Erlang cookie hash: OHhkQgusK1TFe1IpGFhDrw==