RabbitMQ启动出错：- unable to connect to epmd on xxxx: timeout (timed out)

yum install后启动rabbitmq报错:

[root@www ~]# /etc/init.d/rabbitmq-server start
Starting rabbitmq-server: FAILED - check /var/log/rabbitmq/startup_{log, _err}
rabbitmq-server.

查看status

[root@www ~]# /etc/init.d/rabbitmq-server status
Status of node rabbit@www ...
Error: unable to connect to node rabbit@www: nodedown

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

nodes in question: [rabbit@www]

hosts, their running nodes and ports:
- unable to connect to epmd on www: address (cannot connect to host/port)

current node details:
- node name: rabbitmqctl11766@www
- home dir: /var/lib/rabbitmq
- cookie hash: xxxxxxxxxx==

[root@www ~]# 

看日志:

[root@www ~]# tailf  /var/log/rabbitmq/startup_log 

              RabbitMQ 3.1.. Copyright (C) - GoPivotal, Inc.
  ##  ##      Licensed under the MPL.  See http://www.rabbitmq.com/
  ##  ##
  ##########  Logs: /var/log/rabbitmq/rabbit@www.log
  ######  ##        /var/log/rabbitmq/rabbit@www-sasl.log
  ##########
              Starting broker... completed with  plugins.
ERROR: epmd error for host "www": address (cannot connect to host/port)
                                                           [FAILED]

解决方案

[root@blockstorage ~]# vi /etc/hosts
127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
::         localhost localhost.localdomain localhost6 localhost6.localdomain6
127.0.0.1       www
192.168.     www

参考:https://gist.github.com/jch/2522701