现象： 从节点的rabbitmq启动失败
问题定位：
docker logs rabbitmq
=INFO REPORT==== 7-Jun-2017::14:56:36 ===
Multiple different configurations with equal version numbers detected. Shutting down.
[ {node_id,<<24,158,49,51,188,168,80,197,82,239,249,93,55,200,22,254>>},
{node_ids,[{rabbit@compute01,<<24,158,49,51,188,168,80,197,82,239,249,93,
55,200,22,254>>}]},
{gospel,{node,rabbit@controller01}},
{nodes,[{rabbit@compute01,disc},{rabbit@controller01,disc}]},
{version,1}]
发现版本的version编号和rabbitmq-cluster的主节点一样，都是1。
解决问题方法：
查看配置文件cat /etc/kolla/rabbitmq/rabbitmq-clusterer.config，将version 1 改成2。(后续可以在kolla-ansible中修改)
[
{version, 2}, # 原来是1
{nodes, [
{'rabbit@controller01', disc}, {'rabbit@compute01', disc} ]},
{gospel,
{node, 'rabbit@controller01'}}
].
