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[Roman Podoliaka <rpodolyaka@xxxxxxxxxxxx>]

** No longer affects: mos/6.0.x

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https://bugs.launchpad.net/bugs/1334164

Title:
  nova error migrating VMs with floating ips: 'FixedIP' object has no
  attribute '_sa_instance_state'

Status in Fuel: OpenStack installer that works:
  Fix Committed
Status in Fuel for OpenStack 5.0.x series:
  Fix Released
Status in Mirantis OpenStack:
  Fix Committed
Status in Mirantis OpenStack 5.0.x series:
  Fix Released
Status in Mirantis OpenStack 5.1.x series:
  Fix Committed
Status in OpenStack Compute (Nova):
  Fix Released

Bug description:
  Seeing this in conductor logs when migrating a VM with a floating IP
  assigned:

  2014-06-23 09:22:38.899 20314 TRACE oslo.messaging.rpc.dispatcher Traceback (most recent call last):
  2014-06-23 09:22:38.899 20314 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib/python2.6/site-packages/oslo/messaging/rpc/dispatcher.py", line 133, in _dispatch_and_reply
  2014-06-23 09:22:38.899 20314 TRACE oslo.messaging.rpc.dispatcher     incoming.message))
  2014-06-23 09:22:38.899 20314 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib/python2.6/site-packages/oslo/messaging/rpc/dispatcher.py", line 176, in _dispatch
  2014-06-23 09:22:38.899 20314 TRACE oslo.messaging.rpc.dispatcher     return self._do_dispatch(endpoint, method, ctxt, args)
  2014-06-23 09:22:38.899 20314 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib/python2.6/site-packages/oslo/messaging/rpc/dispatcher.py", line 122, in _do_dispatch
  2014-06-23 09:22:38.899 20314 TRACE oslo.messaging.rpc.dispatcher     result = getattr(endpoint, method)(ctxt, **new_args)
  2014-06-23 09:22:38.899 20314 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib/python2.6/site-packages/nova/conductor/manager.py", line 1019, in network_migrate_instance_start
  2014-06-23 09:22:38.899 20314 TRACE oslo.messaging.rpc.dispatcher     migration)
  2014-06-23 09:22:38.899 20314 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib/python2.6/site-packages/nova/conductor/manager.py", line 527, in network_migrate_instance_start
  2014-06-23 09:22:38.899 20314 TRACE oslo.messaging.rpc.dispatcher     self.network_api.migrate_instance_start(context, instance, migration)
  2014-06-23 09:22:38.899 20314 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib/python2.6/site-packages/nova/network/api.py", line 94, in wrapped
  2014-06-23 09:22:38.899 20314 TRACE oslo.messaging.rpc.dispatcher     return func(self, context, *args, **kwargs)
  2014-06-23 09:22:38.899 20314 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib/python2.6/site-packages/nova/network/api.py", line 543, in migrate_instance_start
  2014-06-23 09:22:38.899 20314 TRACE oslo.messaging.rpc.dispatcher     self.network_rpcapi.migrate_instance_start(context, **args)
  2014-06-23 09:22:38.899 20314 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib/python2.6/site-packages/nova/network/rpcapi.py", line 350, in migrate_instance_start
  2014-06-23 09:22:38.899 20314 TRACE oslo.messaging.rpc.dispatcher     floating_addresses=floating_addresses)
  2014-06-23 09:22:38.899 20314 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib/python2.6/site-packages/oslo/messaging/rpc/client.py", line 150, in call
  2014-06-23 09:22:38.899 20314 TRACE oslo.messaging.rpc.dispatcher     wait_for_reply=True, timeout=timeout)
  2014-06-23 09:22:38.899 20314 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib/python2.6/site-packages/oslo/messaging/transport.py", line 90, in _send
  2014-06-23 09:22:38.899 20314 TRACE oslo.messaging.rpc.dispatcher     timeout=timeout)
  2014-06-23 09:22:38.899 20314 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib/python2.6/site-packages/oslo/messaging/_drivers/amqpdriver.py", line 409, in send
  2014-06-23 09:22:38.899 20314 TRACE oslo.messaging.rpc.dispatcher     return self._send(target, ctxt, message, wait_for_reply, timeout)
  2014-06-23 09:22:38.899 20314 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib/python2.6/site-packages/oslo/messaging/_drivers/amqpdriver.py", line 402, in _send
  2014-06-23 09:22:38.899 20314 TRACE oslo.messaging.rpc.dispatcher     raise result
  2014-06-23 09:22:38.899 20314 TRACE oslo.messaging.rpc.dispatcher AttributeError: 'FixedIP' object has no attribute '_sa_instance_state'

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