Comment 22 for bug 1465840

Release Notes:
Default Heat configuration for HA environments is not correct, we need to change parameter "rabbit_ha_queues=True" in /etc/heat/heat.conf to avoid Heat failures in case of destructive scenarios ( when we will power off some controllers and etc.)
When Heat configuration files will be changed on all controllers we should manually restart all Heat services on all OpenStack controllers:

:~# service heat-api restart
:~# service heat-engine restart
:~# service heat-api-cfn restart
:~# service heat-api-cloudwatch restart