can't mix ceilometer and cwlite alarms in one stack

[Angus Salkeld]

From: https://ask.openstack.org/en/question/47690/create-a-highly-available-auto-scaling-group/?answer=49223#post-id-49223

It seems like heat-engine trying to parse ceilometer cpu_alarm_high/low as a cloudwatch alarm. Using each feature alone - autoscaling with ceilometer and restart with cloudwatch, worked fine and never gave this error.

 2014-09-17 12:21:39.146 11734 TRACE heat.openstack.common.loopingcall self.check_stack_watches(sid)
 2014-09-17 12:21:39.146 11734 TRACE heat.openstack.common.loopingcall File "/usr/lib/python2.7/site-packages/heat/engine/service.py", line 229, in check_stack_watches
 2014-09-17 12:21:39.146 11734 TRACE heat.openstack.common.loopingcall actions = rule.evaluate()
 2014-09-17 12:21:39.146 11734 TRACE heat.openstack.common.loopingcall File "/usr/lib/python2.7/site-packages/heat/engine/watchrule.py", line 234, in evaluate
 2014-09-17 12:21:39.146 11734 TRACE heat.openstack.common.loopingcall return self.run_rule()
 2014-09-17 12:21:39.146 11734 TRACE heat.openstack.common.loopingcall File "/usr/lib/python2.7/site-packages/heat/engine/watchrule.py", line 241, in run_rule
 2014-09-17 12:21:39.146 11734 TRACE heat.openstack.common.loopingcall new_state = self.get_alarm_state()
 2014-09-17 12:21:39.146 11734 TRACE heat.openstack.common.loopingcall File "/usr/lib/python2.7/site-packages/heat/engine/watchrule.py", line 224, in get_alarm_state
 2014-09-17 12:21:39.146 11734 TRACE heat.openstack.common.loopingcall fn = getattr(self, 'do_%s' % self.rule['Statistic'])
 2014-09-17 12:21:39.146 11734 TRACE heat.openstack.common.loopingcall KeyError: 'Statistic'
 2014-09-17 12:21:39.146 11734 TRACE heat.openstack.common.loopingcall

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/124661

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/124661
Committed: https://git.openstack.org/cgit/openstack/heat/commit/?id=c9301bb81dbe29e7e3c692b56f530794909b3edf
Submitter: Jenkins
Branch: master

commit c9301bb81dbe29e7e3c692b56f530794909b3edf
Author: Angus Salkeld <email address hidden>
Date: Mon Sep 29 14:37:31 2014 +1000

    Don't evaluate ceilometer watchrules

    If you have both Ceilometer and cwlite alarms in one stack (a little odd)
    we try to evaluate Ceilometer alarms in the periodic task.

    Change-Id: Ia75bf1e5cfa3e2ac31242eafd5fa96d757786ada
    Closes-bug: #1375111