Public bug reported: We've seen this a few times in testing - specifically impacts upstart managed heat-engine; systemd does a better job of cleaning up the failure.
2016-05-10 09:20:02.923 19107 ERROR heat.engine.service [-] Failed to stop engine service, 'NoneType' object has no attribute 'stop' 2016-05-10 09:20:02.924 19106 ERROR heat.engine.service [-] Failed to stop engine service, 'NoneType' object has no attribute 'stop' 2016-05-10 09:20:02.925 19104 ERROR heat.engine.service [-] Failed to stop engine service, 'NoneType' object has no attribute 'stop' 2016-05-10 09:20:02.925 19105 ERROR heat.engine.service [-] Failed to stop engine service, 'NoneType' object has no attribute 'stop' 2016-05-10 09:20:02.978 18804 INFO oslo_service.service [-] Caught SIGTERM, stopping children 2016-05-10 09:20:02.979 18804 ERROR heat.engine.service [-] Failed to stop engine service, 'NoneType' object has no attribute 'stop' 2016-05-10 09:20:02.980 18804 CRITICAL heat-engine [-] AttributeError: 'NoneType' object has no attribute 'groups' 2016-05-10 09:20:02.980 18804 ERROR heat-engine Traceback (most recent call last): 2016-05-10 09:20:02.980 18804 ERROR heat-engine File "/usr/bin/heat-engine", line 10, in <module> 2016-05-10 09:20:02.980 18804 ERROR heat-engine sys.exit(main()) 2016-05-10 09:20:02.980 18804 ERROR heat-engine File "/usr/lib/python2.7/dist-packages/heat/cmd/engine.py", line 79, in main 2016-05-10 09:20:02.980 18804 ERROR heat-engine launcher.wait() 2016-05-10 09:20:02.980 18804 ERROR heat-engine File "/usr/lib/python2.7/dist-packages/oslo_service/service.py", line 577, in wait 2016-05-10 09:20:02.980 18804 ERROR heat-engine self.stop() 2016-05-10 09:20:02.980 18804 ERROR heat-engine File "/usr/lib/python2.7/dist-packages/oslo_service/service.py", line 586, in stop 2016-05-10 09:20:02.980 18804 ERROR heat-engine service.stop() 2016-05-10 09:20:02.980 18804 ERROR heat-engine File "/usr/lib/python2.7/dist-packages/osprofiler/profiler.py", line 117, in wrapper 2016-05-10 09:20:02.980 18804 ERROR heat-engine return f(*args, **kwargs) 2016-05-10 09:20:02.980 18804 ERROR heat-engine File "/usr/lib/python2.7/dist-packages/heat/engine/service.py", line 426, in stop 2016-05-10 09:20:02.980 18804 ERROR heat-engine for stack_id in list(self.thread_group_mgr.groups.keys()): 2016-05-10 09:20:02.980 18804 ERROR heat-engine AttributeError: 'NoneType' object has no attribute 'groups' 2016-05-10 09:20:02.980 18804 ERROR heat-engine 2016-05-10 09:20:03.106 19104 INFO oslo_service.service [-] Parent process has died unexpectedly, exiting 2016-05-10 09:20:03.108 19106 INFO oslo_service.service [-] Parent process has died unexpectedly, exiting 2016-05-10 09:20:03.108 19107 INFO oslo_service.service [-] Parent process has died unexpectedly, exiting 2016-05-10 09:20:03.109 19105 INFO oslo_service.service [-] Parent process has died unexpectedly, exiting 2016-05-10 09:20:03.110 19104 ERROR heat.engine.service [-] Failed to stop engine service, 'NoneType' object has no attribute 'stop' 2016-05-10 09:20:03.111 19107 ERROR heat.engine.service [-] Failed to stop engine service, 'NoneType' object has no attribute 'stop' 2016-05-10 09:20:03.112 19105 ERROR heat.engine.service [-] Failed to stop engine service, 'NoneType' object has no attribute 'stop' 2016-05-10 09:20:03.115 19106 ERROR heat.engine.service [-] Failed to stop engine service, 'NoneType' object has no attribute 'stop' ** Affects: heat (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1580144 Title: heat-engine fails to terminate worker processes To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/heat/+bug/1580144/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs