[Bug 1581171] Re: cinder at master amulet test often fails the pause action test

[Ryan Beisner]

After the cinder unit is in that state, a resume brings the juju service
status back to a state where the charm believes it is healthy, but tgtd
isn't running (haproxy is) and naturally the cinder api calls fail.

juju action do --format=json cinder/6 resume

juju action fetch abd1eea7-3a05-4d5b-8a52-4b9f81006162
status: completed
timing:
  completed: 2016-05-12 20:31:09 +0000 UTC
  enqueued: 2016-05-12 20:30:58 +0000 UTC
  started: 2016-05-12 20:31:02 +0000 UTC

cinder/6          active         idle        1.25.5  31
10.5.1.135     Unit is ready

** Summary changed:

- cinder at master amulet test often fails the pause action test
+ pause/resume failing

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https://bugs.launchpad.net/bugs/1581171

Title:
  pause/resume failing

Status in cinder package in Juju Charms Collection:
  New

Bug description:
  cinder at master amulet test often fails the pause action test

  Observed and reproduced on trusty-liberty, trusty-mitaka test combos.

  ## Unit status
  cinder/0          blocked        idle        1.25.5  1                10.5.1.105     Services should be paused but these services running: cinder-api, cinder-volume, cinder-scheduler, Paused. Use 'resume' action to resume normal service.

  ## Amulet failure (trusty-mitaka, cinder at master 2016 May 12)
  2016-05-12 18:11:56,004 test_910_pause_and_resume DEBUG: Checking pause and resume actions...
  Running command: juju action do --format=json cinder/0 pause

  Traceback (most recent call last):
    File "/tmp/bundletester-QVbeQC/cinder/tests/gate-basic-trusty-mitaka", line 11, in <module>
      deployment.run_tests()
    File "/tmp/bundletester-QVbeQC/cinder/tests/charmhelpers/contrib/amulet/deployment.py", line 95, in run_tests
      getattr(self, test)()
    File "/tmp/bundletester-QVbeQC/cinder/tests/basic_deployment.py", line 773, in test_910_pause_and_resume
      assert self._wait_on_action(action_id), "Pause action failed."
  AssertionError: Pause action failed.

  PASS: 1 ERROR: 1 Total: 2 (869.865811 sec)

  ## Juju status
  http://pastebin.ubuntu.com/16380414/

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