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Fix proposed to branch: master
Review: https://review.openstack.org/370479

** Changed in: tempest
       Status: Invalid => In Progress

** Changed in: tempest
     Assignee: (unassigned) => Matthew Treinish (treinish)

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https://bugs.launchpad.net/bugs/1623691

Title:
  security group in use conflict during test cleanup

Status in tempest:
  In Progress

Bug description:
  ft12.1: tearDownClass (tempest.api.volume.test_volumes_actions.VolumesV1ActionsTest)_StringException: Traceback (most recent call last):
    File "tempest/test.py", line 312, in tearDownClass
      six.reraise(etype, value, trace)
    File "tempest/test.py", line 295, in tearDownClass
      teardown()
    File "tempest/test.py", line 547, in clear_credentials
      cls._creds_provider.clear_creds()
    File "tempest/common/dynamic_creds.py", line 411, in clear_creds
      self._cleanup_default_secgroup(creds.tenant_id)
    File "tempest/common/dynamic_creds.py", line 358, in _cleanup_default_secgroup
      nsg_client.delete_security_group(secgroup['id'])
    File "tempest/lib/services/network/security_groups_client.py", line 58, in delete_security_group
      return self.delete_resource(uri)
    File "tempest/lib/services/network/base.py", line 41, in delete_resource
      resp, body = self.delete(req_uri)
    File "tempest/lib/common/rest_client.py", line 307, in delete
      return self.request('DELETE', url, extra_headers, headers, body)
    File "tempest/lib/common/rest_client.py", line 665, in request
      resp, resp_body)
    File "tempest/lib/common/rest_client.py", line 778, in _error_checker
      raise exceptions.Conflict(resp_body, resp=resp)
  tempest.lib.exceptions.Conflict: An object with that identifier already exists
  Details: {u'type': u'SecurityGroupInUse', u'message': u'Security Group 73bda5d7-e097-4f16-a6ae-96f314c7e885 in use.', u'detail': u''}

  It looks like the request to delete a security group is processed
  before the request to delete the port using it and thus the conflict:

  http://logs.openstack.org/77/346377/14/check/gate-grenade-dsvm-
  neutron-dvr-
  multinode/056b1cf/logs/new/screen-q-svc.txt.gz#_2016-09-14_20_51_33_845

  http://logs.openstack.org/77/346377/14/check/gate-grenade-dsvm-
  neutron-dvr-
  multinode/056b1cf/logs/new/screen-q-svc.txt.gz#_2016-09-14_20_51_34_337

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