Cinder

Backup failed when initialize_connection backup device

Bug #1607333 reported by huanan on 2016-07-28

This bug affects 1 person

Affects		Status	Importance	Assigned to	Milestone
	Cinder	Fix Released	High	Michal Dulko	Cinder newton-3 "n3"

Bug Description

What i do:
1. Creat a 1G size volume and then backup this volume with 'cinder create-backup volume_uuid'.
Then i get following error:

c-vol log:

2016-07-28 19:09:06.715 INFO cinder.backup.manager [req-13fd7f16-a706-44eb-b490-72b26d0ce25d aaae5b52c427482290e213ba8381d0bd b54d0b554d654d5d9dbc1a13ffd2aae7] Create backup started, backup: 3f8d2483-d254-4584-bbe9-012dd94b585a volume: 92c2bcfd-b148-4420-8f4a-06823b8edb89.
2016-07-28 19:09:14.481 ERROR oslo_messaging.rpc.server [req-13fd7f16-a706-44eb-b490-72b26d0ce25d aaae5b52c427482290e213ba8381d0bd b54d0b554d654d5d9dbc1a13ffd2aae7] Exception during message handling
2016-07-28 19:09:14.481 TRACE oslo_messaging.rpc.server Traceback (most recent call last):
2016-07-28 19:09:14.481 TRACE oslo_messaging.rpc.server File "/usr/local/lib/python2.7/dist-packages/oslo_messaging/rpc/server.py", line 133, in _process_incoming
2016-07-28 19:09:14.481 TRACE oslo_messaging.rpc.server res = self.dispatcher.dispatch(message)
2016-07-28 19:09:14.481 TRACE oslo_messaging.rpc.server File "/usr/local/lib/python2.7/dist-packages/oslo_messaging/rpc/dispatcher.py", line 150, in dispatch
2016-07-28 19:09:14.481 TRACE oslo_messaging.rpc.server return self._do_dispatch(endpoint, method, ctxt, args)
2016-07-28 19:09:14.481 TRACE oslo_messaging.rpc.server File "/usr/local/lib/python2.7/dist-packages/oslo_messaging/rpc/dispatcher.py", line 121, in _do_dispatch
2016-07-28 19:09:14.481 TRACE oslo_messaging.rpc.server result = func(ctxt, **new_args)
2016-07-28 19:09:14.481 TRACE oslo_messaging.rpc.server File "/opt/stack/cinder/cinder/backup/manager.py", line 406, in create_backup
2016-07-28 19:09:14.481 TRACE oslo_messaging.rpc.server self._update_backup_error(backup, context, six.text_type(err))
2016-07-28 19:09:14.481 TRACE oslo_messaging.rpc.server File "/usr/local/lib/python2.7/dist-packages/oslo_utils/excutils.py", line 220, in __exit__
2016-07-28 19:09:14.481 TRACE oslo_messaging.rpc.server self.force_reraise()
2016-07-28 19:09:14.481 TRACE oslo_messaging.rpc.server File "/usr/local/lib/python2.7/dist-packages/oslo_utils/excutils.py", line 196, in force_reraise
2016-07-28 19:09:14.481 TRACE oslo_messaging.rpc.server six.reraise(self.type_, self.value, self.tb)
2016-07-28 19:09:14.481 TRACE oslo_messaging.rpc.server File "/opt/stack/cinder/cinder/backup/manager.py", line 400, in create_backup
2016-07-28 19:09:14.481 TRACE oslo_messaging.rpc.server self._run_backup(context, backup, volume)
2016-07-28 19:09:14.481 TRACE oslo_messaging.rpc.server File "/opt/stack/cinder/cinder/backup/manager.py", line 436, in _run_backup
2016-07-28 19:09:14.481 TRACE oslo_messaging.rpc.server properties, is_snapshot)
2016-07-28 19:09:14.481 TRACE oslo_messaging.rpc.server File "/opt/stack/cinder/cinder/backup/manager.py", line 907, in _attach_device
2016-07-28 19:09:14.481 TRACE oslo_messaging.rpc.server return self._attach_volume(context, backup_device, properties)
2016-07-28 19:09:14.481 TRACE oslo_messaging.rpc.server File "/opt/stack/cinder/cinder/backup/manager.py", line 934, in _attach_volume
2016-07-28 19:09:14.481 TRACE oslo_messaging.rpc.server {'volume_id', volume.id})
2016-07-28 19:09:14.481 TRACE oslo_messaging.rpc.server File "/usr/local/lib/python2.7/dist-packages/oslo_utils/excutils.py", line 220, in __exit__
2016-07-28 19:09:14.481 TRACE oslo_messaging.rpc.server self.force_reraise()
2016-07-28 19:09:14.481 TRACE oslo_messaging.rpc.server File "/usr/local/lib/python2.7/dist-packages/oslo_utils/excutils.py", line 196, in force_reraise
2016-07-28 19:09:14.481 TRACE oslo_messaging.rpc.server six.reraise(self.type_, self.value, self.tb)
2016-07-28 19:09:14.481 TRACE oslo_messaging.rpc.server File "/opt/stack/cinder/cinder/backup/manager.py", line 922, in _attach_volume
2016-07-28 19:09:14.481 TRACE oslo_messaging.rpc.server properties)
2016-07-28 19:09:14.481 TRACE oslo_messaging.rpc.server File "/opt/stack/cinder/cinder/volume/rpcapi.py", line 203, in initialize_connection
2016-07-28 19:09:14.481 TRACE oslo_messaging.rpc.server msg_args = {'volume_id': volume.id, 'connector': connector,
2016-07-28 19:09:14.481 TRACE oslo_messaging.rpc.server AttributeError: 'dict' object has no attribute 'id'
2016-07-28 19:09:14.481 TRACE oslo_messaging.rpc.server

I found this patch https://review.openstack.org/#/c/238894/ maybe cause this problem, in cinder.backup.manage:

def _run_backup(self, context, backup, volume):
backup_service = self.service.get_backup_driver(context)

        properties = utils.brick_get_connector_properties()
        backup_dic = self.volume_rpcapi.get_backup_device(context,
                                                          backup, volume)
        try:
            backup_device = backup_dic.get('backup_device')
            is_snapshot = backup_dic.get('is_snapshot')
            attach_info = self._attach_device(context, backup_device,
                                              properties, is_snapshot)

backup_device is a dict not object, it cause backup volume function can't used properly, need modify as soon as possible.

Tags:

Michal Dulko (michal-dulko-f) on 2016-07-29

Changed in cinder:
status:	New → Confirmed
assignee:	nobody → Michal Dulko (michal-dulko-f)
status:	Confirmed → In Progress

Revision history for this message

Lisa Li (lisali) wrote on 2016-08-01:

Are you testing in current master branch? I did tests, and didn't have above problems.

Revision history for this message

huanan (huanan) wrote on 2016-08-01:

Yes, I 'm testing in current master branch, since this patch https://review.openstack.org/#/c/238894/ merged.

Revision history for this message

Michal Dulko (michal-dulko-f) wrote on 2016-08-01:

@hunan: What Cinder driver are you running?

Revision history for this message

huanan (huanan) wrote on 2016-08-01:

Huawei driver.

Revision history for this message

Michal Dulko (michal-dulko-f) wrote on 2016-08-01:

@hunan: Are you maybe running multiple nodes and some of them aren't newest master?

Revision history for this message

huanan (huanan) wrote on 2016-08-01:

We use one node, and the environment is newest mater.

Revision history for this message

Michal Dulko (michal-dulko-f) wrote on 2016-08-01:

I'm sorry I've made a mistake in your nick in previous comments.

This complicates things a little as I don't see codepath when this can happen. Can you share cinder-volume and cinder-backup logs gathered during such error occurring?

Revision history for this message

huanan (huanan) wrote on 2016-08-01:

Sure, I will send to you Email.

Revision history for this message

huanan (huanan) wrote on 2016-08-02:

Download full text (13.7 KiB)

/opt/stack/cinder/cinder/backup/manager.py(434)_run_backup()
-> backup_device = backup_dic.get('backup_device')
(Pdb) l
429  	        properties = utils.brick_get_connector_properties()
430  	        backup_dic = self.volume_rpcapi.get_backup_device(context,
431  	                                                          backup, volume)
432  	        try:
433  	            import pdb;pdb.set_trace()
434  ->	            backup_device = backup_dic.get('backup_device')
435  	            is_snapshot = backup_dic.get('is_snapshot')
436  	            attach_info = self._attach_device(context, backup_device,
437  	                                              properties, is_snapshot)
438  	            try:
439  	                device_path = attach_info['device']['path']
(Pdb) p backup_dic
{u'secure_enabled': False, u'is_snapshot': False, u'backup_device': {u'migration_status': None, u'provider_id': None, u'availability_zone': u'nova', u'terminated_at': None, u'updated_at': u'2016-08-02T01:41:40.000000', u'provider_geometry': None, u'replication_extended_status': None, u'replication_status': u'disabled', u'snapshot_id': None, u'ec2_id': None, u'deleted_at': None, u'id': u'221b42b0-8540-4220-8004-c2b55c114b20', u'size': 1, u'user_id': u'aaae5b52c427482290e213ba8381d0bd', u'volume_attachment': [], u'display_description': None, u'cluster_name': None, u'volume_admin_metadata': [{u'deleted': False, u'created_at': u'2016-08-02T01:39:52.000000', u'updated_at': None, u'value': u'63400a31000d844d3ac699940000005c', u'key': u'huawei_lun_wwn', u'volume_id': u'221b42b0-8540-4220-8004-c2b55c114b20', u'deleted_at': None, u'id': 32}], u'project_id': u'b54d0b554d654d5d9dbc1a13ffd2aae7', u'launched_at': u'2016-08-02T01:39:52.000000', u'scheduled_at': u'2016-08-02T01:39:47.000000', u'status': u'backing-up', u'volume_type_id': None, u'multiattach': False, u'deleted': False, u'provider_location': u'92', u'host': u'ubuntu-hxl-160@38#StoragePool001', u'consistencygroup_id': None, u'source_volid': None, u'provider_auth': None, u'previous_status': u'available', u'display_name': u'test2', u'bootable': False, u'created_at': u'2016-08-02T01:39:40.000000', u'attach_status': u'detached', u'volume_type': None, u'consistencygroup': None, u'volume_metadata': [], u'_name_id': None, u'encryption_key_id': None, u'replication_driver_data': None}}
(Pdb) p backup_dic.get('backup_device')
{u'migration_status': None, u'provider_id': None, u'availability_zone': u'nova', u'terminated_at': None, u'updated_at': u'2016-08-02T01:41:40.000000', u'provider_geometry': None, u'replication_extended_status': None, u'replication_status': u'disabled', u'snapshot_id': None, u'ec2_id': None, u'deleted_at': None, u'id': u'221b42b0-8540-4220-8004-c2b55c114b20', u'size': 1, u'user_id': u'aaae5b52c427482290e213ba8381d0bd', u'volume_attachment': [], u'display_description': None, u'cluster_name': None, u'volume_admin_metadata': [{u'deleted': False, u'created_at': u'2016-08-02T01:39:52.000000', u'updated_at': None, u'value': u'63400a31000d844d3ac699940000005c', u'key': u'huawei_lun_wwn', u'volume_id': u'221b42b0-8540-4220-8004-c2b55c114b20', u'deleted_at': None, u'id': 32}], u'project_id': u'b54d0b554d654d5d9dbc1a13ffd2aae7', u'launched_at': u'2016-08-02T01:39:52.000000', u'scheduled_at': u'2016-08-02T01:39:47.000000', u'status': u'backing-up', u'volume_type_id': None, u'multiattach': False, u'deleted': False, u'provider_location': u'92', u'host': u'ubuntu-hxl-160@38#StoragePool001', u'consistencygroup_id': None, u'source_volid': None, u'provider_auth': None, u'previous_status': u'available', u'display_name': u'test2', u'bootable': False, u'created_at': u'2016-08-02T01:39:40.000000', u'attach_status': u'detached', u'volume_type': None, u'consistencygroup': None, u'volume_metadata': [], u'_name_id': None, u'encryption_key_id': None, u'replication_driver_data': None}
(Pdb) p type(backup_dic.get('backup_device'))
<type 'dict'>
(Pdb) 
<type 'dict'>
(Pdb) l
440  	                if isinstance(device_path, six.string_types):
441  	                    if backup_dic.get('secure_enabled', False):
442  	                        with open(device_path) as device_file:
443  	                            backup_service.backup(backup, device_file)
444  	                    else:
445  	                        with utils.temporary_chown(device_path):
446  	                            with open(device_path) as device_file:
447  	                                backup_service.backup(backup, device_file)
448  	                # device_path is already file-like so no need to open it
449  	                else:
450  	                    backup_service.backup(backup, device_path)
(Pdb) n
> /opt/stack/cinder/cinder/backup/manager.py(435)_run_backup()
-> is_snapshot = backup_dic.get('is_snapshot')
(Pdb) n
> /opt/stack/cinder/cinder/backup/manager.py(436)_run_backup()
-> attach_info = self._attach_device(context, backup_device,
(Pdb) p backup_device
{u'migration_status': None, u'provider_id': None, u'availability_zone': u'nova', u'terminated_at': None, u'updated_at': u'2016-08-02T01:41:40.000000', u'provider_geometry': None, u'replication_extended_status': None, u'replication_status': u'disabled', u'snapshot_id': None, u'ec2_id': None, u'deleted_at': None, u'id': u'221b42b0-8540-4220-8004-c2b55c114b20', u'size': 1, u'user_id': u'aaae5b52c427482290e213ba8381d0bd', u'volume_attachment': [], u'display_description': None, u'cluster_name': None, u'volume_admin_metadata': [{u'deleted': False, u'created_at': u'2016-08-02T01:39:52.000000', u'updated_at': None, u'value': u'63400a31000d844d3ac699940000005c', u'key': u'huawei_lun_wwn', u'volume_id': u'221b42b0-8540-4220-8004-c2b55c114b20', u'deleted_at': None, u'id': 32}], u'project_id': u'b54d0b554d654d5d9dbc1a13ffd2aae7', u'launched_at': u'2016-08-02T01:39:52.000000', u'scheduled_at': u'2016-08-02T01:39:47.000000', u'status': u'backing-up', u'volume_type_id': None, u'multiattach': False, u'deleted': False, u'provider_location': u'92', u'host': u'ubuntu-hxl-160@38#StoragePool001', u'consistencygroup_id': None, u'source_volid': None, u'provider_auth': None, u'previous_status': u'available', u'display_name': u'test2', u'bootable': False, u'created_at': u'2016-08-02T01:39:40.000000', u'attach_status': u'detached', u'volume_type': None, u'consistencygroup': None, u'volume_metadata': [], u'_name_id': None, u'encryption_key_id': None, u'replication_driver_data': None}
(Pdb) s
> /opt/stack/cinder/cinder/backup/manager.py(437)_run_backup()
-> properties, is_snapshot)
(Pdb) 
--Call--
> /opt/stack/cinder/cinder/backup/manager.py(904)_attach_device()
-> def _attach_device(self, context, backup_device,
(Pdb) l
899  	        :param context: running context
900  	        """
901  	        backup_service = self.service.get_backup_driver(context)
902  	        return backup_service.support_force_delete
903  	
904  ->	    def _attach_device(self, context, backup_device,
905  	                       properties, is_snapshot=False):
906  	        """Attach backup device."""
907  	        if not is_snapshot:
908  	            return self._attach_volume(context, backup_device, properties)
909  	        else:
(Pdb) l
910  	            volume = self.db.volume_get(context, backup_device.volume_id)
911  	            host = volume_utils.extract_host(volume['host'], 'backend')
912  	            backend = self._get_volume_backend(host=host)
913  	            rc = self._get_driver(backend)._attach_snapshot(
914  	                context, backup_device, properties)
915  	            return rc
916  	
917  	    def _attach_volume(self, context, volume, properties):
918  	        """Attach a volume."""
919  	
920  	        try:
(Pdb) n
> /opt/stack/cinder/cinder/backup/manager.py(907)_attach_device()
-> if not is_snapshot:
(Pdb) n
> /opt/stack/cinder/cinder/backup/manager.py(908)_attach_device()
-> return self._attach_volume(context, backup_device, properties)
(Pdb) s
--Call--
> /opt/stack/cinder/cinder/backup/manager.py(917)_attach_volume()
-> def _attach_volume(self, context, volume, properties):
(Pdb) l
912  	            backend = self._get_volume_backend(host=host)
913  	            rc = self._get_driver(backend)._attach_snapshot(
914  	                context, backup_device, properties)
915  	            return rc
916  	
917  ->	    def _attach_volume(self, context, volume, properties):
918  	        """Attach a volume."""
919  	
920  	        try:
921  	            conn = self.volume_rpcapi.initialize_connection(context,
922  	                                                            volume,
(Pdb) n
> /opt/stack/cinder/cinder/backup/manager.py(920)_attach_volume()
-> try:
(Pdb) p volume
{u'migration_status': None, u'provider_id': None, u'availability_zone': u'nova', u'terminated_at': None, u'updated_at': u'2016-08-02T01:41:40.000000', u'provider_geometry': None, u'replication_extended_status': None, u'replication_status': u'disabled', u'snapshot_id': None, u'ec2_id': None, u'deleted_at': None, u'id': u'221b42b0-8540-4220-8004-c2b55c114b20', u'size': 1, u'user_id': u'aaae5b52c427482290e213ba8381d0bd', u'volume_attachment': [], u'display_description': None, u'cluster_name': None, u'volume_admin_metadata': [{u'deleted': False, u'created_at': u'2016-08-02T01:39:52.000000', u'updated_at': None, u'value': u'63400a31000d844d3ac699940000005c', u'key': u'huawei_lun_wwn', u'volume_id': u'221b42b0-8540-4220-8004-c2b55c114b20', u'deleted_at': None, u'id': 32}], u'project_id': u'b54d0b554d654d5d9dbc1a13ffd2aae7', u'launched_at': u'2016-08-02T01:39:52.000000', u'scheduled_at': u'2016-08-02T01:39:47.000000', u'status': u'backing-up', u'volume_type_id': None, u'multiattach': False, u'deleted': False, u'provider_location': u'92', u'host': u'ubuntu-hxl-160@38#StoragePool001', u'consistencygroup_id': None, u'source_volid': None, u'provider_auth': None, u'previous_status': u'available', u'display_name': u'test2', u'bootable': False, u'created_at': u'2016-08-02T01:39:40.000000', u'attach_status': u'detached', u'volume_type': None, u'consistencygroup': None, u'volume_metadata': [], u'_name_id': None, u'encryption_key_id': None, u'replication_driver_data': None}
(Pdb) n
> /opt/stack/cinder/cinder/backup/manager.py(921)_attach_volume()
-> conn = self.volume_rpcapi.initialize_connection(context,
(Pdb) s
> /opt/stack/cinder/cinder/backup/manager.py(922)_attach_volume()
-> volume,
(Pdb) 
> /opt/stack/cinder/cinder/backup/manager.py(923)_attach_volume()
-> properties)
(Pdb) 
--Call--
> /opt/stack/cinder/cinder/volume/rpcapi.py(201)initialize_connection()
-> def initialize_connection(self, ctxt, volume, connector):
(Pdb) l
196  	    def copy_volume_to_image(self, ctxt, volume, image_meta):
197  	        cctxt = self._get_cctxt(volume['host'], '2.0')
198  	        cctxt.cast(ctxt, 'copy_volume_to_image', volume_id=volume['id'],
199  	                   image_meta=image_meta)
200  	
201  ->	    def initialize_connection(self, ctxt, volume, connector):
202  	        version = self._compat_ver('2.3', '2.0')
203  	        msg_args = {'volume_id': volume.id, 'connector': connector,
204  	                    'volume': volume}
205  	
206  	        if version == '2.0':
(Pdb) n
> /opt/stack/cinder/cinder/volume/rpcapi.py(202)initialize_connection()
-> version = self._compat_ver('2.3', '2.0')
(Pdb) l
197  	        cctxt = self._get_cctxt(volume['host'], '2.0')
198  	        cctxt.cast(ctxt, 'copy_volume_to_image', volume_id=volume['id'],
199  	                   image_meta=image_meta)
200  	
201  	    def initialize_connection(self, ctxt, volume, connector):
202  ->	        version = self._compat_ver('2.3', '2.0')
203  	        msg_args = {'volume_id': volume.id, 'connector': connector,
204  	                    'volume': volume}
205  	
206  	        if version == '2.0':
207  	            del msg_args['volume']
(Pdb) n
> /opt/stack/cinder/cinder/volume/rpcapi.py(203)initialize_connection()
-> msg_args = {'volume_id': volume.id, 'connector': connector,
(Pdb) l
198  	        cctxt.cast(ctxt, 'copy_volume_to_image', volume_id=volume['id'],
199  	                   image_meta=image_meta)
200  	
201  	    def initialize_connection(self, ctxt, volume, connector):
202  	        version = self._compat_ver('2.3', '2.0')
203  ->	        msg_args = {'volume_id': volume.id, 'connector': connector,
204  	                    'volume': volume}
205  	
206  	        if version == '2.0':
207  	            del msg_args['volume']
208  	
(Pdb) p volume.id
*** AttributeError: AttributeError("'dict' object has no attribute 'id'",)
(Pdb) p volume
{u'migration_status': None, u'provider_id': None, u'availability_zone': u'nova', u'terminated_at': None, u'updated_at': u'2016-08-02T01:41:40.000000', u'provider_geometry': None, u'replication_extended_status': None, u'replication_status': u'disabled', u'snapshot_id': None, u'ec2_id': None, u'deleted_at': None, u'id': u'221b42b0-8540-4220-8004-c2b55c114b20', u'size': 1, u'user_id': u'aaae5b52c427482290e213ba8381d0bd', u'volume_attachment': [], u'display_description': None, u'cluster_name': None, u'volume_admin_metadata': [{u'deleted': False, u'created_at': u'2016-08-02T01:39:52.000000', u'updated_at': None, u'value': u'63400a31000d844d3ac699940000005c', u'key': u'huawei_lun_wwn', u'volume_id': u'221b42b0-8540-4220-8004-c2b55c114b20', u'deleted_at': None, u'id': 32}], u'project_id': u'b54d0b554d654d5d9dbc1a13ffd2aae7', u'launched_at': u'2016-08-02T01:39:52.000000', u'scheduled_at': u'2016-08-02T01:39:47.000000', u'status': u'backing-up', u'volume_type_id': None, u'multiattach': False, u'deleted': False, u'provider_location': u'92', u'host': u'ubuntu-hxl-160@38#StoragePool001', u'consistencygroup_id': None, u'source_volid': None, u'provider_auth': None, u'previous_status': u'available', u'display_name': u'test2', u'bootable': False, u'created_at': u'2016-08-02T01:39:40.000000', u'attach_status': u'detached', u'volume_type': None, u'consistencygroup': None, u'volume_metadata': [], u'_name_id': None, u'encryption_key_id': None, u'replication_driver_data': None}
(Pdb) p type(volume)
<type 'dict'>
(Pdb)

Revision history for this message

huanan (huanan) wrote on 2016-08-02:

#10

Hi,michal, please see pdb log above.

Revision history for this message

huanan (huanan) wrote on 2016-08-02:

#11

I'm sorry, I forget to say that we configured backup_use_temp_snasphot=True and backup_use_same_host=True.

Revision history for this message

huanan (huanan) wrote on 2016-08-02:

#12

https://github.com/openstack/cinder/blob/e23ba3673f03ef51a1a1a969da6ccc479cfc22a4/cinder/volume/driver.py#L1127-L1127
Volume is not a object here.

Revision history for this message

Michal Dulko (michal-dulko-f) wrote on 2016-08-03:

#13

https://review.openstack.org/#/c/350551/ - here's the fix, I'm not sure why Launchpad haven't caught that.

Michal Dulko (michal-dulko-f) on 2016-08-22

Changed in cinder:
importance:	Undecided → High
milestone:	none → newton-3

Revision history for this message

OpenStack Infra (hudson-openstack) wrote on 2016-08-26: Fix merged to cinder (master)

#14

Reviewed: https://review.openstack.org/350551
Committed: https://git.openstack.org/cgit/openstack/cinder/commit/?id=52efd1e7fdb6d3b5f5a1d6287fc45a54e0a9f0c6
Submitter: Jenkins
Branch: master

commit 52efd1e7fdb6d3b5f5a1d6287fc45a54e0a9f0c6
Author: Michał Dulko <email address hidden>
Date: Wed Aug 3 14:03:22 2016 +0200

Use volume o.vo in get_backup_volume_temp_snapshot

    In snapshot's path in BaseVD's get_backup_device we're fetching a
    volume using SQLAlchemy API instead of objects. In the end this caused
    that sometimes we're returning a volume dictionary instead of an o.vo
    from get_backup_device call in volume.manager. As in backup.manager
    we're assuming that backup_device will be an object, backup operation
    sometimes exploded.

This commit fixes that by making sure that we're always returning an
o.vo from that call.

Change-Id: I7adf3655d9c1bc63baede8f56202fd139709e552
Closes-Bug: 1607333

Changed in cinder:
status:	In Progress → Fix Released

Revision history for this message

Thierry Carrez (ttx) wrote on 2016-09-02: Fix included in openstack/cinder 9.0.0.0b3

#15

This issue was fixed in the openstack/cinder 9.0.0.0b3 development milestone.

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