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[Matt Riedemann <mriedem@xxxxxxxxxx>]

** Also affects: nova/newton
   Importance: Undecided
       Status: New

** Changed in: nova
     Assignee: Rajesh Tailor (ratailor) => jichenjc (jichenjc)

** Changed in: nova/newton
   Importance: Undecided => Medium

** Changed in: nova
   Importance: Undecided => Medium

** Changed in: nova/newton
     Assignee: (unassigned) => Lee Yarwood (lyarwood)

** Changed in: nova/newton
       Status: New => In Progress

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https://bugs.launchpad.net/bugs/1641523

Title:
  Nova can't force-delete instance that is stuck in deleting process

Status in OpenStack Compute (nova):
  In Progress
Status in OpenStack Compute (nova) newton series:
  In Progress

Bug description:
  I tried to delete an instance that got into error state during creation. And it's stuck in deleting "Task State". 
  I checked with virsh and instance is not present. And after I tried to force-delete it nova client crashed with a message that it should be reported as bug.

  Installation is Newton on Centos 7.

  Here is part of nova-api.log

  2016-11-14 08:37:05.099 4189 INFO nova.osapi_compute.wsgi.server [req-37d453be-6f18-479d-bae8-6b24493a3366 24bef1856bf643c2bda92b710a7a6fcd 43dec04d0696450787fee3580b9780de - default default] 10.6.0.11 "GET /v2.1/ HTTP/1.1" status: 200 len: 714 time: 0.0065050
  2016-11-14 08:37:05.569 4189 INFO nova.osapi_compute.wsgi.server [req-9a5d94a1-a2cf-45b8-bfac-5f231f3e07b7 24bef1856bf643c2bda92b710a7a6fcd 43dec04d0696450787fee3580b9780de - default default] 10.6.0.11 "GET /v2.1/43dec04d0696450787fee3580b9780de/servers/198b4ce6-84cc-4a45-8eda-d0b3262f3df4 HTTP/1.1" status: 200 len: 2243 time: 0.2764120
  2016-11-14 08:37:05.651 4189 ERROR nova.api.openstack.extensions [req-fa12df45-bf9b-471b-8914-24a57427e358 24bef1856bf643c2bda92b710a7a6fcd 43dec04d0696450787fee3580b9780de - default default] Unexpected exception in API method
  2016-11-14 08:37:05.651 4189 ERROR nova.api.openstack.extensions Traceback (most recent call last):
  2016-11-14 08:37:05.651 4189 ERROR nova.api.openstack.extensions   File "/usr/lib/python2.7/site-packages/nova/api/openstack/extensions.py", line 338, in wrapped
  2016-11-14 08:37:05.651 4189 ERROR nova.api.openstack.extensions     return f(*args, **kwargs)
  2016-11-14 08:37:05.651 4189 ERROR nova.api.openstack.extensions   File "/usr/lib/python2.7/site-packages/nova/api/openstack/compute/deferred_delete.py", line 64, in _force_delete
  2016-11-14 08:37:05.651 4189 ERROR nova.api.openstack.extensions     self.compute_api.force_delete(context, instance)
  2016-11-14 08:37:05.651 4189 ERROR nova.api.openstack.extensions   File "/usr/lib/python2.7/site-packages/nova/compute/api.py", line 165, in inner
  2016-11-14 08:37:05.651 4189 ERROR nova.api.openstack.extensions     return function(self, context, instance, *args, **kwargs)
  2016-11-14 08:37:05.651 4189 ERROR nova.api.openstack.extensions   File "/usr/lib/python2.7/site-packages/nova/compute/api.py", line 138, in inner
  2016-11-14 08:37:05.651 4189 ERROR nova.api.openstack.extensions     method=f.__name__)
  2016-11-14 08:37:05.651 4189 ERROR nova.api.openstack.extensions InstanceInvalidState: Instance 198b4ce6-84cc-4a45-8eda-d0b3262f3df4 in task_state deleting. Cannot force_delete while the instance is in this state.
  2016-11-14 08:37:05.651 4189 ERROR nova.api.openstack.extensions 
  2016-11-14 08:37:05.651 4189 INFO nova.api.openstack.wsgi [req-fa12df45-bf9b-471b-8914-24a57427e358 24bef1856bf643c2bda92b710a7a6fcd 43dec04d0696450787fee3580b9780de - default default] HTTP exception thrown: Unexpected API Error. Please report this at http://bugs.launchpad.net/nova/ and attach the Nova API log if possible.
  <class 'nova.exception.InstanceInvalidState'>

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