Comment 7 for bug 1465840

We need to change "rabbit_ha_queues=False " to "rabbit_ha_queues=True" in heat config file to fix the issue.
Then we need to restart Heat services on all controllers:

root@node-1:~# service heat-api restart
root@node-1:~# service heat-engine restart
root@node-1:~# service heat-api-cfn restart
root@node-1:~# service heat-api-cloudwatch restart