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[Thierry Carrez <thierry.carrez+lp@xxxxxxxxx>]

** Changed in: nova
       Status: Fix Committed => Fix Released

** Changed in: nova
    Milestone: None => liberty-1

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https://bugs.launchpad.net/bugs/1463039

Title:
  BandwidthUsage object has no attribute 'instance_uuid'

Status in OpenStack Compute (Nova):
  Fix Released

Bug description:
  XenServer CI is hitting the following issue (e.g. http
  ://dd6b71949550285df7dc-
  dda4e480e005aaa13ec303551d2d8155.r49.cf1.rackcdn.com/64/188764/2/137/index.html)

  Traceback (most recent call last):
    File "/opt/stack/new/nova/nova/compute/manager.py", line 6037, in _error_out_instance_on_exception
      yield
    File "/opt/stack/new/nova/nova/compute/manager.py", line 2658, in rebuild_instance
      extra_usage_info=extra_usage_info)
    File "/opt/stack/new/nova/nova/compute/utils.py", line 270, in notify_usage_exists
      ignore_missing_network_data)
    File "/opt/stack/new/nova/nova/notifications.py", line 316, in bandwidth_usage
      audit_start)
    File "/opt/stack/new/nova/nova/objects/base.py", line 833, in wrapper
      return fn.__get__(None, obj)(*args, **kwargs)
    File "/opt/stack/new/nova/nova/objects/base.py", line 158, in wrapper
      args, kwargs)
    File "/opt/stack/new/nova/nova/conductor/rpcapi.py", line 261, in object_class_action
      objver=objver, args=args, kwargs=kwargs)
    File "/usr/local/lib/python2.7/dist-packages/oslo_messaging/rpc/client.py", line 156, in call
      retry=self.retry)
    File "/usr/local/lib/python2.7/dist-packages/oslo_messaging/transport.py", line 90, in _send
      timeout=timeout, retry=retry)
    File "/usr/local/lib/python2.7/dist-packages/oslo_messaging/_drivers/amqpdriver.py", line 361, in send
      retry=retry)
    File "/usr/local/lib/python2.7/dist-packages/oslo_messaging/_drivers/amqpdriver.py", line 352, in _send
      raise result
  AttributeError: 'BandwidthUsage' object has no attribute 'instance_uuid'
  Traceback (most recent call last):
    File "/opt/stack/new/nova/nova/conductor/manager.py", line 436, in _object_dispatch
      return getattr(target, method)(*args, **kwargs)
    File "/opt/stack/new/nova/nova/objects/base.py", line 833, in wrapper
      return fn.__get__(None, obj)(*args, **kwargs)
    File "/opt/stack/new/nova/nova/objects/base.py", line 160, in wrapper
      result = fn(cls, context, *args, **kwargs)
    File "/opt/stack/new/nova/nova/objects/bandwidth_usage.py", line 88, in get_by_uuids
      return base.obj_make_list(context, cls(), BandwidthUsage, db_bw_usages)
    File "/opt/stack/new/nova/nova/objects/base.py", line 811, in obj_make_list
      **extra_args)
    File "/opt/stack/new/nova/nova/objects/bandwidth_usage.py", line 40, in _from_db_object
      bw_usage[field] = db_bw_usage[field]
    File "/usr/local/lib/python2.7/dist-packages/oslo_db/sqlalchemy/models.py", line 54, in __getitem__
      return getattr(self, key)
  AttributeError: 'BandwidthUsage' object has no attribute 'instance_uuid'

  
  Also seen in the periodic task:
  2015-06-05 15:26:32.219 ERROR nova.openstack.common.periodic_task [req-a13743a2-7ca0-4865-a237-6aba08e704fb None None] Error during ComputeManager._poll_bandwidth_usage: 'NoneType' object has no attribute '__getitem__'
  Traceback (most recent call last):
    File "/opt/stack/new/nova/nova/conductor/manager.py", line 436, in _object_dispatch
      return getattr(target, method)(*args, **kwargs)
    File "/opt/stack/new/nova/nova/objects/base.py", line 831, in wrapper
      return fn(obj, *args, **kwargs)
    File "/opt/stack/new/nova/nova/objects/base.py", line 205, in wrapper
      return fn(self, *args, **kwargs)
    File "/opt/stack/new/nova/nova/objects/bandwidth_usage.py", line 65, in create
      self._from_db_object(self._context, self, db_bw_usage)
    File "/opt/stack/new/nova/nova/objects/bandwidth_usage.py", line 40, in _from_db_object
      bw_usage[field] = db_bw_usage[field]
  TypeError: 'NoneType' object has no attribute '__getitem__'

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