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Reviewed:  https://review.openstack.org/367597
Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=193e71bd30bbc6dd0a22b4e07d98e8a763ddda7b
Submitter: Jenkins
Branch:    master

commit 193e71bd30bbc6dd0a22b4e07d98e8a763ddda7b
Author: Andrew Laski <andrew@xxxxxxxxxx>
Date:   Thu Sep 8 15:42:36 2016 -0400

    Handle ObjectActionError during cells instance delete
    
    There was logic in place to handle an ObjectActionError being raised
    when deleting an instance with cellsv1, however a second
    instance.destroy() call was added which did not have the same logic
    applied. This adds appropriate handling for that case.
    
    Change-Id: I007f249f772dbb53cf24a9bf06d2962001cb8384
    Closes-Bug: 1621574


** Changed in: nova
       Status: In Progress => Fix Released

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https://bugs.launchpad.net/bugs/1621574

Title:
  Instance fails to delete while building in cells v1 due to
  "ObjectActionError: Object action destroy failed because: host
  changed"

Status in OpenStack Compute (nova):
  Fix Released

Bug description:
  Seeing this in a cells v1 job here:

  http://logs.openstack.org/55/367455/1/check/gate-tempest-dsvm-
  cells/1d8af83/logs/screen-n-api.txt.gz#_2016-09-08_15_59_02_553

  2016-09-08 15:59:02.553 15924 ERROR nova.api.openstack.extensions [req-0f23fed6-0aaf-461f-96d8-f4aa5055b208 tempest-ListServersNegativeTestJSON-1414534476 tempest-ListServersNegativeTestJSON-1414534476] Unexpected exception in API method
  2016-09-08 15:59:02.553 15924 ERROR nova.api.openstack.extensions Traceback (most recent call last):
  2016-09-08 15:59:02.553 15924 ERROR nova.api.openstack.extensions   File "/opt/stack/new/nova/nova/api/openstack/extensions.py", line 338, in wrapped
  2016-09-08 15:59:02.553 15924 ERROR nova.api.openstack.extensions     return f(*args, **kwargs)
  2016-09-08 15:59:02.553 15924 ERROR nova.api.openstack.extensions   File "/opt/stack/new/nova/nova/api/openstack/compute/servers.py", line 915, in delete
  2016-09-08 15:59:02.553 15924 ERROR nova.api.openstack.extensions     self._delete(req.environ['nova.context'], req, id)
  2016-09-08 15:59:02.553 15924 ERROR nova.api.openstack.extensions   File "/opt/stack/new/nova/nova/api/openstack/compute/servers.py", line 767, in _delete
  2016-09-08 15:59:02.553 15924 ERROR nova.api.openstack.extensions     self.compute_api.delete(context, instance)
  2016-09-08 15:59:02.553 15924 ERROR nova.api.openstack.extensions   File "/opt/stack/new/nova/nova/compute/cells_api.py", line 213, in delete
  2016-09-08 15:59:02.553 15924 ERROR nova.api.openstack.extensions     self._handle_cell_delete(context, instance, 'delete')
  2016-09-08 15:59:02.553 15924 ERROR nova.api.openstack.extensions   File "/opt/stack/new/nova/nova/compute/cells_api.py", line 224, in _handle_cell_delete
  2016-09-08 15:59:02.553 15924 ERROR nova.api.openstack.extensions     if self._delete_while_booting(context, instance):
  2016-09-08 15:59:02.553 15924 ERROR nova.api.openstack.extensions   File "/opt/stack/new/nova/nova/compute/api.py", line 1648, in _delete_while_booting
  2016-09-08 15:59:02.553 15924 ERROR nova.api.openstack.extensions     instance.destroy()
  2016-09-08 15:59:02.553 15924 ERROR nova.api.openstack.extensions   File "/usr/local/lib/python2.7/dist-packages/oslo_versionedobjects/base.py", line 226, in wrapper
  2016-09-08 15:59:02.553 15924 ERROR nova.api.openstack.extensions     return fn(self, *args, **kwargs)
  2016-09-08 15:59:02.553 15924 ERROR nova.api.openstack.extensions   File "/opt/stack/new/nova/nova/objects/instance.py", line 555, in destroy
  2016-09-08 15:59:02.553 15924 ERROR nova.api.openstack.extensions     reason='host changed')
  2016-09-08 15:59:02.553 15924 ERROR nova.api.openstack.extensions ObjectActionError: Object action destroy failed because: host changed
  2016-09-08 15:59:02.553 15924 ERROR nova.api.openstack.extensions 

  http://logs.openstack.org/55/367455/1/check/gate-tempest-dsvm-
  cells/1d8af83/console.html#_2016-09-08_16_13_48_892443

  logs.openstack.org/55/367455/1/check/gate-tempest-dsvm-
  cells/1d8af83/logs/tempest.txt.gz#_2016-09-08_15_59_02_558

  In this test it creates a server and then immediately deletes it
  without waiting for it to be ACTIVE first.

  I wonder if we're racing with any of the BuildRequest stuff that's new
  in Newton.

  http://logstash.openstack.org/#dashboard/file/logstash.json?query=message%3A%5C%22ObjectActionError%3A%20Object%20action%20destroy%20failed%20because%3A%20host%20changed%5C%22%20AND%20message%3A%5C%22_handle_cell_delete%5C%22%20AND%20tags%3A%5C%22screen-n-api.txt%5C%22&from=7d

  10 hits in the last 7 days, check and gate, master (newton) only at
  this point.

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