解决RabbitMQ 3.7.2 && Erlang 20.2 for windows10安装之后rabbitmqctl命令出错的问题

安装RabbitMQ过程请参看http://blog.csdn.net/chwshuang/article/details/50543878

安装环境

• RabbitMQ 3.7.2
• Erlang20.2
  
• Windows10
  

安装成功之后使用rabbitmqctl status命令之后出现如下错误

Status of node rabbit@GuoGuo-PC ...

Error: unable to perform an operation on node 'rabbit@GuoGuo-PC'. 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@GuoGuo-PC

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

attempted to contact: ['rabbit@GuoGuo-PC']

rabbit@GuoGuo-PC:
  * connected to epmd (port 4369) on GuoGuo-PC
  * 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

网上查了很多没有找到解决办法，最后注意到最后两行的内容，然后去官网的安装教程点击打开链接查看发现其中有这么一段

To ensure Erlang cookie files contain the same string,copy the .erlang.cookie file from the Windowsservice directory listed above to replace the user .erlang.cookie.

意思是要确保.erlang.cookie文件的一致性，问题就出在这里，不知道什么原因导致了C:\Users\{UserName}\.erlang.cookie和默认情况下C:\WINDOWS\System32\config\systemprofile\.erlang.cookie不一致了，将Windows目录下的拷贝到用户目录下就可以了。