Service engine is launched with error due to updating oslo.messaging to 3.0.0

[Dmytro Dovbii]

1. Download murano from master
2. Install requirments
3. Confugure murano
4. Run murano-engine

You will see error in logs:

2015-11-30 10:09:23.688 19894 WARNING oslo_messaging.server [-] Possible hang: wait is waiting for stop to complete
2015-11-30 10:09:23.689 19894 DEBUG oslo_messaging.server [-] File "/home/ddovbii/work/murano/murano/cmd/engine.py", line 60, in <module>
    main()
  File "/home/ddovbii/work/murano/murano/cmd/engine.py", line 53, in main
    launcher.wait()
  File "/home/ddovbii/work/murano/.tox/venv/local/lib/python2.7/site-packages/oslo_service/service.py", line 284, in wait
    status, signo = self._wait_for_exit_or_signal(ready_callback)
  File "/home/ddovbii/work/murano/.tox/venv/local/lib/python2.7/site-packages/oslo_service/service.py", line 262, in _wait_for_exit_or_signal
    super(ServiceLauncher, self).wait()
  File "/home/ddovbii/work/murano/.tox/venv/local/lib/python2.7/site-packages/oslo_service/service.py", line 207, in wait
    self.services.wait()
  File "/home/ddovbii/work/murano/.tox/venv/local/lib/python2.7/site-packages/oslo_service/service.py", line 640, in wait
    service.wait()
  File "/home/ddovbii/work/murano/.tox/venv/local/lib/python2.7/site-packages/oslo_messaging/server.py", line 251, in wrapper
    log_after, timeout_timer)
  File "/home/ddovbii/work/murano/.tox/venv/local/lib/python2.7/site-packages/oslo_messaging/server.py", line 150, in wait_for_completion
    msg, log_after, timeout_timer)
  File "/home/ddovbii/work/murano/.tox/venv/local/lib/python2.7/site-packages/oslo_messaging/server.py", line 115, in _wait
    LOG.debug(''.join(traceback.format_stack()))
 _wait /home/ddovbii/work/murano/.tox/venv/local/lib/python2.7/site-packages/oslo_messaging/server.py:115

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/255154

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/255154
Committed: https://git.openstack.org/cgit/openstack/murano/commit/?id=05edab366164ebd4ac0743252776a9e00579650c
Submitter: Jenkins
Branch: master

commit 05edab366164ebd4ac0743252776a9e00579650c
Author: Stan Lagun <email address hidden>
Date: Wed Dec 9 12:30:49 2015 +0300

    Do not wait for MessageHandlingServer

    Previously oslo.messaging's MessageHandlingServer
    was used as as a murano-engine service in service launcher.
    As a result it's wait() method was called. But after recent
    changes it's wait method is supposed to be call only
    after stop() to wait for graceful message processing to end.
    As a result a warning was printed that stop() didn't finish
    after 30 sec from wait() invocation (because it was never called).

    This commit adds EngineService service implementation
    that has its own wait() and encapsulates MessageHandlingServer
    instance.

    Change-Id: Ie553e0b27cc1c261b963907b4f12f89795b99a12
    Closes-Bug: #1521087

[Sergey Reshetnyak (sreshetniak)]

Not reproduced

[Vitalii Gridnev (vgridnev)]

Reproduced again, logs: http://paste.openstack.org/show/486440/ , pip freeze: http://paste.openstack.org/show/486441/

[Kirill Zaitsev (kzaitsev)]

Reopening the bug for murano. Still experiencing this on current master with all the latest requirements installed

2016-02-29 13:12:51.156 16663 DEBUG oslo_messaging.server [-] File ".tox/venv/bin/murano-api", line 10, in <module>
    sys.exit(main())
  File "/Users/teferi/murano/murano/murano/cmd/api.py", line 72, in main
    launcher.wait()
  File "/Users/teferi/murano/murano/.tox/venv/lib/python2.7/site-packages/oslo_service/service.py", line 309, in wait
    status, signo = self._wait_for_exit_or_signal()
  File "/Users/teferi/murano/murano/.tox/venv/lib/python2.7/site-packages/oslo_service/service.py", line 287, in _wait_for_exit_or_signal
    super(ServiceLauncher, self).wait()
  File "/Users/teferi/murano/murano/.tox/venv/lib/python2.7/site-packages/oslo_service/service.py", line 223, in wait
    self.services.wait()
  File "/Users/teferi/murano/murano/.tox/venv/lib/python2.7/site-packages/oslo_service/service.py", line 659, in wait
    service.wait()
  File "/Users/teferi/murano/murano/.tox/venv/lib/python2.7/site-packages/oslo_messaging/server.py", line 263, in wrapper
    log_after, timeout_timer)
  File "/Users/teferi/murano/murano/.tox/venv/lib/python2.7/site-packages/oslo_messaging/server.py", line 162, in wait_for_completion
    msg, log_after, timeout_timer)
  File "/Users/teferi/murano/murano/.tox/venv/lib/python2.7/site-packages/oslo_messaging/server.py", line 127, in _wait
    LOG.debug(''.join(traceback.format_stack()))
 _wait /Users/teferi/murano/murano/.tox/venv/lib/python2.7/site-packages/oslo_messaging/server.py:127

[Kirill Zaitsev (kzaitsev)]

Also might be important, but this happens to me, when I launch murano-api service

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/290628

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/290628
Committed: https://git.openstack.org/cgit/openstack/murano/commit/?id=940d69394c10c4cd21b8a6febc48d1394b68a423
Submitter: Jenkins
Branch: master

commit 940d69394c10c4cd21b8a6febc48d1394b68a423
Author: varshak05 <email address hidden>
Date: Wed Mar 9 21:28:48 2016 +0530

    Do not wait for MessageHandlingServer

    This commit adds ApiService/NotificationService service
    implementation that has its own wait() and encapsulates
    MessageHandlingServer instance.

    Similar issue was fixed for murano-engine, this commit fixes the same
    for murano-api service.

    Change-Id: Ia1566dc79aa5a05a00851fcf48f3e7318ac85d54
    Closes-Bug: #1521087

[Kirill Zaitsev (kzaitsev)]

I've noticed you removed liberty-backport-potential. I believe this bug still has that potential for murano. Please file a separate bug for sahara if you need one