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

** Changed in: nova/stein
       Status: New => Confirmed

** Changed in: nova/stein
   Importance: Undecided => High

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https://bugs.launchpad.net/bugs/1843615

Title:
  
TestInstanceNotificationSampleWithMultipleCompute.test_multiple_compute_actions
  intermittently failing since Sept 10, 2019

Status in OpenStack Compute (nova):
  In Progress
Status in OpenStack Compute (nova) stein series:
  Confirmed

Bug description:
  Seen here:

  
https://openstack.fortnebula.com:13808/v1/AUTH_e8fd161dc34c421a979a9e6421f823e9/zuul_opendev_logs_c4c/671072/18/gate
  /nova-tox-functional/c4ca604/job-output.txt

  2019-09-11 16:01:31.460243 | ubuntu-bionic | {3} 
nova.tests.functional.notification_sample_tests.test_instance.TestInstanceNotificationSampleWithMultipleCompute.test_multiple_compute_actions
 [15.126947s] ... FAILED
  2019-09-11 16:01:31.460323 | ubuntu-bionic |
  2019-09-11 16:01:31.460383 | ubuntu-bionic | Captured traceback:
  2019-09-11 16:01:31.460442 | ubuntu-bionic | ~~~~~~~~~~~~~~~~~~~
  2019-09-11 16:01:31.460525 | ubuntu-bionic |     Traceback (most recent call 
last):
  2019-09-11 16:01:31.460714 | ubuntu-bionic |       File 
"nova/tests/functional/notification_sample_tests/test_instance.py", line 61, in 
test_multiple_compute_actions
  2019-09-11 16:01:31.460775 | ubuntu-bionic |         action(server)
  2019-09-11 16:01:31.460975 | ubuntu-bionic |       File 
"nova/tests/functional/notification_sample_tests/test_instance.py", line 306, 
in _test_live_migration_force_complete
  2019-09-11 16:01:31.461065 | ubuntu-bionic |         
fake_notifier.VERSIONED_NOTIFICATIONS)
  2019-09-11 16:01:31.461297 | ubuntu-bionic |       File 
"/home/zuul/src/opendev.org/openstack/nova/.tox/functional/local/lib/python2.7/site-packages/testtools/testcase.py",
 line 411, in assertEqual
  2019-09-11 16:01:31.461394 | ubuntu-bionic |         
self.assertThat(observed, matcher, message)
  2019-09-11 16:01:31.461628 | ubuntu-bionic |       File 
"/home/zuul/src/opendev.org/openstack/nova/.tox/functional/local/lib/python2.7/site-packages/testtools/testcase.py",
 line 498, in assertThat
  2019-09-11 16:01:31.461695 | ubuntu-bionic |         raise mismatch_error
  2019-09-11 16:01:31.484778 | ubuntu-bionic |     
testtools.matchers._impl.MismatchError: 6 != 7: [{'priority': 'INFO', 
'payload': {'nova_object.namespace': 'nova', 'nova_object.name': 
'RequestSpecPayload', 'nova_object.version': '1.1', 'nova_object.data': 
{'flavor': {'nova_object.namespace': 'nova', 'nova_object.name': 
'FlavorPayload', 'nova_object.version': '1.4', 'nova_object.data': {'flavorid': 
u'a22d5517-147c-4147-a0d1-e698df5cd4e3', 'is_public': True, 'ephemeral_gb': 0, 
'vcpus': 1, 'root_gb': 1, 'disabled': False, 'description': None, 'projects': 
None, 'vcpu_weight': 0, 'memory_mb': 512, 'name': u'test_flavor', 
'rxtx_factor': 1.0, 'extra_specs': {'trait:COMPUTE_STATUS_DISABLED': 
u'forbidden', u'hw:watchdog_action': u'disabled'}, 'swap': 0}}, 'image': 
{'nova_object.namespace': 'nova', 'nova_object.name': 'ImageMetaPayload', 
'nova_object.version': '1.0', 'nova_object.data': {'direct_url': None, 
'container_format': u'raw', 'visibility': u'public', 'size': 25165824, 
'disk_format': u'raw', 'virtual_size': None, 'protected': False, 'status': 
u'active', 'updated_at': '2011-01-01T01:02:03Z', 'tags': [u'tag1', u'tag2'], 
'name': u'fakeimage123456', 'created_at': '2011-01-01T01:02:03Z', 'min_disk': 
0, 'checksum': None, 'owner': None, 'id': 
u'155d900f-4e14-4e4c-a73d-069cbf4541e6', 'properties': 
{'nova_object.namespace': 'nova', 'nova_object.name': 'ImageMetaPropsPayload', 
'nova_object.version': '1.1', 'nova_object.data': {'hw_architecture': 
u'x86_64'}}, 'min_ram': 0}}, 'requested_destination': {'nova_object.namespace': 
'nova', 'nova_object.name': 'DestinationPayload', 'nova_object.version': '1.0', 
'nova_object.data': {'host': u'host2', 'aggregates': None, 'node': u'host2', 
'cell': {'nova_object.namespace': 'nova', 'nova_object.name': 
'CellMappingPayload', 'nova_object.version': '2.0', 'nova_object.data': 
{'disabled': False, 'uuid': u'49bb4305-6acb-4b60-abff-382e2e85108a', 'name': 
u'cell1'}}}}, 'security_groups': [u'default'], 'scheduler_hints': {}, 
'project_id': u'6f70656e737461636b20342065766572', 'retry': None, 
'num_instances': 1, 'instance_group': None, 'force_nodes': None, 
'ignore_hosts': [u'compute'], 'force_hosts': None, 'numa_topology': None, 
'instance_uuid': u'8d65a36d-36e8-4994-9bdd-89a455166ab9', 'availability_zone': 
None, 'user_id': u'fake', 'pci_requests': {'nova_object.namespace': 'nova', 
'nova_object.name': 'InstancePCIRequestsPayload', 'nova_object.version': '1.0', 
'nova_object.data': {'requests': [], 'instance_uuid': 
u'8d65a36d-36e8-4994-9bdd-89a455166ab9'}}}}, 'publisher_id': 
u'nova-scheduler:host2', 'event_type': u'scheduler.select_destinations.start'}, 
{'priority': 'INFO', 'payload': {'nova_object.namespace': 'nova', 
'nova_object.name': 'RequestSpecPayload', 'nova_object.version': '1.1', 
'nova_object.data': {'flavor': {'nova_object.namespace': 'nova', 
'nova_object.name': 'FlavorPayload', 'nova_object.version': '1.4', 
'nova_object.data': {'flavorid': u'a22d5517-147c-4147-a0d1-e698df5cd4e3', 
'is_public': True, 'ephemeral_gb': 0, 'vcpus': 1, 'root_gb': 1, 'disabled': 
False, 'description': None, 'projects': None, 'vcpu_weight': 0, 'memory_mb': 
512, 'name': u'test_flavor', 'rxtx_factor': 1.0, 'extra_specs': 
{'trait:COMPUTE_STATUS_DISABLED': u'forbidden', u'hw:watchdog_action': 
u'disabled'}, 'swap': 0}}, 'image': {'nova_object.namespace': 'nova', 
'nova_object.name': 'ImageMetaPayload', 'nova_object.version': '1.0', 
'nova_object.data': {'direct_url': None, 'container_format': u'raw', 
'visibility': u'public', 'size': 25165824, 'disk_format': u'raw', 
'virtual_size': None, 'protected': False, 'status': u'active', 'updated_at': 
'2011-01-01T01:02:03Z', 'tags': [u'tag1', u'tag2'], 'name': u'fakeimage123456', 
'created_at': '2011-01-01T01:02:03Z', 'min_disk': 0, 'checksum': None, 'owner': 
None, 'id': u'155d900f-4e14-4e4c-a73d-069cbf4541e6', 'properties': 
{'nova_object.namespace': 'nova', 'nova_object.name': 'ImageMetaPropsPayload', 
'nova_object.version': '1.1', 'nova_object.data': {'hw_architecture': 
u'x86_64'}}, 'min_ram': 0}}, 'requested_destination': {'nova_object.namespace': 
'nova', 'nova_object.name': 'DestinationPayload', 'nova_object.version': '1.0', 
'nova_object.data': {'host': u'host2', 'aggregates': None, 'node': u'host2', 
'cell': {'nova_object.namespace': 'nova', 'nova_object.name': 
'CellMappingPayload', 'nova_object.version': '2.0', 'nova_object.data': 
{'disabled': False, 'uuid': u'49bb4305-6acb-4b60-abff-382e2e85108a', 'name': 
u'cell1'}}}}, 'security_groups': [u'default'], 'scheduler_hints': {}, 
'project_id': u'6f70656e737461636b20342065766572', 'retry': None, 
'num_instances': 1, 'instance_group': None, 'force_nodes': None, 
'ignore_hosts': [u'compute'], 'force_hosts': None, 'numa_topology': None, 
'instance_uuid': u'8d65a36d-36e8-4994-9bdd-89a455166ab9', 'availability_zone': 
None, 'user_id': u'fake', 'pci_requests': {'nova_object.namespace': 'nova', 
'nova_object.name': 'InstancePCIRequestsPayload', 'nova_object.version': '1.0', 
'nova_object.data': {'requests': [], 'instance_uuid': 
u'8d65a36d-36e8-4994-9bdd-89a455166ab9'}}}}, 'publisher_id': 
u'nova-scheduler:host2', 'event_type': u'scheduler.select_destinations.end'}, 
{'priority': 'INFO', 'payload': {'nova_object.namespace': 'nova', 
'nova_object.name': 'InstanceActionPayload', 'nova_object.version': '1.8', 
'nova_object.data': {'os_type': None, 'flavor': {'nova_object.namespace': 
'nova', 'nova_object.name': 'FlavorPayload', 'nova_object.version': '1.4', 
'nova_object.data': {'flavorid': u'a22d5517-147c-4147-a0d1-e698df5cd4e3', 
'is_public': True, 'ephemeral_gb': 0, 'vcpus': 1, 'root_gb': 1, 'disabled': 
False, 'description': None, 'projects': None, 'vcpu_weight': 0, 'memory_mb': 
512, 'name': u'test_flavor', 'rxtx_factor': 1.0, 'extra_specs': 
{u'hw:watchdog_action': u'disabled'}, 'swap': 0}}, 'display_description': 
u'some-server', 'action_initiator_user': u'admin', 'kernel_id': u'', 
'host_name': u'some-server', 'created_at': '2012-10-29T13:42:11Z', 
'ramdisk_id': u'', 'key_name': u'my-key', 'fault': None, 'progress': 0, 
'reservation_id': u'r-7gm79j0r', 'launched_at': '2012-10-29T13:42:11Z', 
'state': u'active', 'action_initiator_project': 
u'6f70656e737461636b20342065766572', 'architecture': u'x86_64', 'deleted_at': 
None, 'host': u'compute', 'availability_zone': u'nova', 'locked': False, 
'ip_addresses': [{'nova_object.namespace': 'nova', 'nova_object.name': 
'IpPayload', 'nova_object.version': '1.0', 'nova_object.data': {'label': 
u'private-network', 'meta': {}, 'address': '192.168.1.3', 'device_name': 
u'tapce531f90-19', 'mac': u'fa:16:3e:4c:2c:30', 'version': 4, 'port_uuid': 
u'ce531f90-199f-48c0-816c-13e38010b442'}}], 'auto_disk_config': u'MANUAL', 
'block_devices': [{'nova_object.namespace': 'nova', 'nova_object.name': 
'BlockDevicePayload', 'nova_object.version': '1.0', 'nova_object.data': 
{'boot_index': None, 'device_name': u'/dev/sdb', 'delete_on_termination': 
False, 'volume_id': u'a07f71dc-8151-4e7d-a0cc-cd24a3f11113', 'tag': None}}], 
'node': u'fake-mini', 'request_id': 
u'req-5b6c791d-5709-4f36-8fbe-c3e02869e35d', 'locked_reason': None, 
'tenant_id': u'6f70656e737461636b20342065766572', 'metadata': {}, 'task_state': 
u'migrating', 'terminated_at': None, 'image_uuid': 
u'155d900f-4e14-4e4c-a73d-069cbf4541e6', 'display_name': u'some-server', 
'updated_at': '2012-10-29T13:42:11Z', 'power_state': u'running', 'user_id': 
u'fake', 'uuid': u'8d65a36d-36e8-4994-9bdd-89a455166ab9'}}, 'publisher_id': 
u'nova-compute:host2', 'event_type': u'instance.live_migration_pre.start'}, 
{'priority': 'INFO', 'payload': {'nova_object.namespace': 'nova', 
'nova_object.name': 'InstanceActionPayload', 'nova_object.version': '1.8', 
'nova_object.data': {'os_type': None, 'flavor': {'nova_object.namespace': 
'nova', 'nova_object.name': 'FlavorPayload', 'nova_object.version': '1.4', 
'nova_object.data': {'flavorid': u'a22d5517-147c-4147-a0d1-e698df5cd4e3', 
'is_public': True, 'ephemeral_gb': 0, 'vcpus': 1, 'root_gb': 1, 'disabled': 
False, 'description': None, 'projects': None, 'vcpu_weight': 0, 'memory_mb': 
512, 'name': u'test_flavor', 'rxtx_factor': 1.0, 'extra_specs': 
{u'hw:watchdog_action': u'disabled'}, 'swap': 0}}, 'display_description': 
u'some-server', 'action_initiator_user': u'admin', 'kernel_id': u'', 
'host_name': u'some-server', 'created_at': '2012-10-29T13:42:11Z', 
'ramdisk_id': u'', 'key_name': u'my-key', 'fault': None, 'progress': 0, 
'reservation_id': u'r-7gm79j0r', 'launched_at': '2012-10-29T13:42:11Z', 
'state': u'active', 'action_initiator_project': 
u'6f70656e737461636b20342065766572', 'architecture': u'x86_64', 'deleted_at': 
None, 'host': u'compute', 'availability_zone': u'nova', 'locked': False, 
'ip_addresses': [{'nova_object.namespace': 'nova', 'nova_object.name': 
'IpPayload', 'nova_object.version': '1.0', 'nova_object.data': {'label': 
u'private-network', 'meta': {}, 'address': '192.168.1.3', 'device_name': 
u'tapce531f90-19', 'mac': u'fa:16:3e:4c:2c:30', 'version': 4, 'port_uuid': 
u'ce531f90-199f-48c0-816c-13e38010b442'}}], 'auto_disk_config': u'MANUAL', 
'block_devices': [{'nova_object.namespace': 'nova', 'nova_object.name': 
'BlockDevicePayload', 'nova_object.version': '1.0', 'nova_object.data': 
{'boot_index': None, 'device_name': u'/dev/sdb', 'delete_on_termination': 
False, 'volume_id': u'a07f71dc-8151-4e7d-a0cc-cd24a3f11113', 'tag': None}}], 
'node': u'fake-mini', 'request_id': 
u'req-5b6c791d-5709-4f36-8fbe-c3e02869e35d', 'locked_reason': None, 
'tenant_id': u'6f70656e737461636b20342065766572', 'metadata': {}, 'task_state': 
u'migrating', 'terminated_at': None, 'image_uuid': 
u'155d900f-4e14-4e4c-a73d-069cbf4541e6', 'display_name': u'some-server', 
'updated_at': '2012-10-29T13:42:11Z', 'power_state': u'running', 'user_id': 
u'fake', 'uuid': u'8d65a36d-36e8-4994-9bdd-89a455166ab9'}}, 'publisher_id': 
u'nova-compute:host2', 'event_type': u'instance.live_migration_pre.end'}, 
{'priority': 'INFO', 'payload': {'nova_object.namespace': 'nova', 
'nova_object.name': 'InstanceActionPayload', 'nova_object.version': '1.8', 
'nova_object.data': {'os_type': None, 'flavor': {'nova_object.namespace': 
'nova', 'nova_object.name': 'FlavorPayload', 'nova_object.version': '1.4', 
'nova_object.data': {'flavorid': u'a22d5517-147c-4147-a0d1-e698df5cd4e3', 
'is_public': True, 'ephemeral_gb': 0, 'vcpus': 1, 'root_gb': 1, 'disabled': 
False, 'description': None, 'projects': None, 'vcpu_weight': 0, 'memory_mb': 
512, 'name': u'test_flavor', 'rxtx_factor': 1.0, 'extra_specs': 
{u'hw:watchdog_action': u'disabled'}, 'swap': 0}}, 'display_description': 
u'some-server', 'action_initiator_user': u'admin', 'kernel_id': u'', 
'host_name': u'some-server', 'created_at': '2012-10-29T13:42:11Z', 
'ramdisk_id': u'', 'key_name': u'my-key', 'fault': None, 'progress': 0, 
'reservation_id': u'r-7gm79j0r', 'launched_at': '2012-10-29T13:42:11Z', 
'state': u'active', 'action_initiator_project': 
u'6f70656e737461636b20342065766572', 'architecture': u'x86_64', 'deleted_at': 
None, 'host': u'compute', 'availability_zone': u'nova', 'locked': False, 
'ip_addresses': [{'nova_object.namespace': 'nova', 'nova_object.name': 
'IpPayload', 'nova_object.version': '1.0', 'nova_object.data': {'label': 
u'private-network', 'meta': {}, 'address': '192.168.1.3', 'device_name': 
u'tapce531f90-19', 'mac': u'fa:16:3e:4c:2c:30', 'version': 4, 'port_uuid': 
u'ce531f90-199f-48c0-816c-13e38010b442'}}], 'auto_disk_config': u'MANUAL', 
'block_devices': [{'nova_object.namespace': 'nova', 'nova_object.name': 
'BlockDevicePayload', 'nova_object.version': '1.0', 'nova_object.data': 
{'boot_index': None, 'device_name': u'/dev/sdb', 'delete_on_termination': 
False, 'volume_id': u'a07f71dc-8151-4e7d-a0cc-cd24a3f11113', 'tag': None}}], 
'node': u'fake-mini', 'request_id': 
u'req-5b6c791d-5709-4f36-8fbe-c3e02869e35d', 'locked_reason': None, 
'tenant_id': u'6f70656e737461636b20342065766572', 'metadata': {}, 'task_state': 
u'migrating', 'terminated_at': None, 'image_uuid': 
u'155d900f-4e14-4e4c-a73d-069cbf4541e6', 'display_name': u'some-server', 
'updated_at': '2012-10-29T13:42:11Z', 'power_state': u'running', 'user_id': 
u'fake', 'uuid': u'8d65a36d-36e8-4994-9bdd-89a455166ab9'}}, 'publisher_id': 
u'nova-compute:compute', 'event_type': 
u'instance.live_migration_force_complete.start'}, {'priority': 'INFO', 
'payload': {'nova_object.namespace': 'nova', 'nova_object.name': 
'InstanceActionPayload', 'nova_object.version': '1.8', 'nova_object.data': 
{'os_type': None, 'flavor': {'nova_object.namespace': 'nova', 
'nova_object.name': 'FlavorPayload', 'nova_object.version': '1.4', 
'nova_object.data': {'flavorid': u'a22d5517-147c-4147-a0d1-e698df5cd4e3', 
'is_public': True, 'ephemeral_gb': 0, 'vcpus': 1, 'root_gb': 1, 'disabled': 
False, 'description': None, 'projects': None, 'vcpu_weight': 0, 'memory_mb': 
512, 'name': u'test_flavor', 'rxtx_factor': 1.0, 'extra_specs': 
{u'hw:watchdog_action': u'disabled'}, 'swap': 0}}, 'display_description': 
u'some-server', 'action_initiator_user': u'admin', 'kernel_id': u'', 
'host_name': u'some-server', 'created_at': '2012-10-29T13:42:11Z', 
'ramdisk_id': u'', 'key_name': u'my-key', 'fault': None, 'progress': 0, 
'reservation_id': u'r-7gm79j0r', 'launched_at': '2012-10-29T13:42:11Z', 
'state': u'active', 'action_initiator_project': 
u'6f70656e737461636b20342065766572', 'architecture': u'x86_64', 'deleted_at': 
None, 'host': u'compute', 'availability_zone': u'nova', 'locked': False, 
'ip_addresses': [{'nova_object.namespace': 'nova', 'nova_object.name': 
'IpPayload', 'nova_object.version': '1.0', 'nova_object.data': {'label': 
u'private-network', 'meta': {}, 'address': '192.168.1.3', 'device_name': 
u'tapce531f90-19', 'mac': u'fa:16:3e:4c:2c:30', 'version': 4, 'port_uuid': 
u'ce531f90-199f-48c0-816c-13e38010b442'}}], 'auto_disk_config': u'MANUAL', 
'block_devices': [{'nova_object.namespace': 'nova', 'nova_object.name': 
'BlockDevicePayload', 'nova_object.version': '1.0', 'nova_object.data': 
{'boot_index': None, 'device_name': u'/dev/sdb', 'delete_on_termination': 
False, 'volume_id': u'a07f71dc-8151-4e7d-a0cc-cd24a3f11113', 'tag': None}}], 
'node': u'fake-mini', 'request_id': 
u'req-5b6c791d-5709-4f36-8fbe-c3e02869e35d', 'locked_reason': None, 
'tenant_id': u'6f70656e737461636b20342065766572', 'metadata': {}, 'task_state': 
u'migrating', 'terminated_at': None, 'image_uuid': 
u'155d900f-4e14-4e4c-a73d-069cbf4541e6', 'display_name': u'some-server', 
'updated_at': '2012-10-29T13:42:11Z', 'power_state': u'running', 'user_id': 
u'fake', 'uuid': u'8d65a36d-36e8-4994-9bdd-89a455166ab9'}}, 'publisher_id': 
u'nova-compute:compute', 'event_type': 
u'instance.live_migration_force_complete.end'}, {'priority': 'INFO', 'payload': 
{'nova_object.namespace': 'nova', 'nova_object.name': 'InstanceActionPayload', 
'nova_object.version': '1.8', 'nova_object.data': {'os_type': None, 'flavor': 
{'nova_object.namespace': 'nova', 'nova_object.name': 'FlavorPayload', 
'nova_object.version': '1.4', 'nova_object.data': {'flavorid': 
u'a22d5517-147c-4147-a0d1-e698df5cd4e3', 'is_public': True, 'ephemeral_gb': 0, 
'vcpus': 1, 'root_gb': 1, 'disabled': False, 'description': None, 'projects': 
None, 'vcpu_weight': 0, 'memory_mb': 512, 'name': u'test_flavor', 
'rxtx_factor': 1.0, 'extra_specs': {u'hw:watchdog_action': u'disabled'}, 
'swap': 0}}, 'display_description': u'some-server', 'action_initiator_user': 
u'admin', 'kernel_id': u'', 'host_name': u'some-server', 'created_at': 
'2012-10-29T13:42:11Z', 'ramdisk_id': u'', 'key_name': u'my-key', 'fault': 
None, 'progress': 0, 'reservation_id': u'r-7gm79j0r', 'launched_at': 
'2012-10-29T13:42:11Z', 'state': u'active', 'action_initiator_project': 
u'6f70656e737461636b20342065766572', 'architecture': u'x86_64', 'deleted_at': 
None, 'host': u'compute', 'availability_zone': u'nova', 'locked': False, 
'ip_addresses': [{'nova_object.namespace': 'nova', 'nova_object.name': 
'IpPayload', 'nova_object.version': '1.0', 'nova_object.data': {'label': 
u'private-network', 'meta': {}, 'address': '192.168.1.3', 'device_name': 
u'tapce531f90-19', 'mac': u'fa:16:3e:4c:2c:30', 'version': 4, 'port_uuid': 
u'ce531f90-199f-48c0-816c-13e38010b442'}}], 'auto_disk_config': u'MANUAL', 
'block_devices': [{'nova_object.namespace': 'nova', 'nova_object.name': 
'BlockDevicePayload', 'nova_object.version': '1.0', 'nova_object.data': 
{'boot_index': None, 'device_name': u'/dev/sdb', 'delete_on_termination': 
False, 'volume_id': u'a07f71dc-8151-4e7d-a0cc-cd24a3f11113', 'tag': None}}], 
'node': u'fake-mini', 'request_id': 
u'req-5b6c791d-5709-4f36-8fbe-c3e02869e35d', 'locked_reason': None, 
'tenant_id': u'6f70656e737461636b20342065766572', 'metadata': {}, 'task_state': 
u'migrating', 'terminated_at': None, 'image_uuid': 
u'155d900f-4e14-4e4c-a73d-069cbf4541e6', 'display_name': u'some-server', 
'updated_at': '2012-10-29T13:42:11Z', 'power_state': u'running', 'user_id': 
u'fake', 'uuid': u'8d65a36d-36e8-4994-9bdd-89a455166ab9'}}, 'publisher_id': 
u'nova-compute:compute', 'event_type': u'instance.live_migration_post.start'}]

  The test code is expecting 6 notifications but got 7:

  self._wait_for_notification(
              'instance.live_migration_force_complete.end')

          # 0. scheduler.select_destinations.start
          # 1. scheduler.select_destinations.end
          # 2. instance.live_migration_pre.start
          # 3. instance.live_migration_pre.end
          # 4. instance.live_migration_force_complete.start
          # 5. instance.live_migration_force_complete.end
          self.assertEqual(6, len(fake_notifier.VERSIONED_NOTIFICATIONS),
                           fake_notifier.VERSIONED_NOTIFICATIONS)

  The 7th is instance.live_migration_post.start:

  http://paste.openstack.org/show/775148/

  so it appears something has changed when that is sent or we're losing
  a race with when force complete is triggered? Meaning maybe we don't
  catch the force complete in time before post live migration starts.

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https://bugs.launchpad.net/nova/+bug/1843615/+subscriptions

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