问题描述：
D:\java_software\rabbitmq\rabbitmqIns\rabbitmq_server-3.7.4\sbin>rabbitmqctl status
Status of node rabbit@WIN-20160401GQJ ...
Error: unable to perform an operation on node 'rabbit@WIN-20160401GQJ'. 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@WIN-20160401GQJ
DIAGNOSTICS
===========
attempted to contact: ['rabbit@WIN-20160401GQJ']
rabbit@WIN-20160401GQJ:
* connected to epmd (port 4369) on WIN-20160401GQJ
* epmd reports node 'rabbit' uses port 25672 for inter-node and CLI tool traffic
* TCP connection succeeded but Erlang distribution failed
* Authentication failed (rejected by the remote node), please check the Erlang cookie
Current node details:
* node name: 'rabbitmqcli80@WIN-20160401GQJ'
* effective user's home directory: C:\Users\Administrator\
* Erlang cookie hash: KEYRZDRQIMNVYMCLBROK
解决方法：
用C:\Users\Administrator\ .erlang.cookie 替换掉C:\Windows\System32\config\systemprofile下的.erlang.cookie
