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[Bug 1317208] [NEW] Xen live-migrate with volume attached ends with FIELD_TYPE_ERROR failure

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Public bug reported:

The relevant portion of an example stack trace is below:

2014-05-01 10:25:37.027 13905 TRACE oslo.messaging.rpc.dispatcher   File "/opt/rackstack/615.44/nova/lib/python2.6/site-packa
ges/nova/virt/xenapi/vmops.py", line 2316, in attach_block_device_volumes
2014-05-01 10:25:37.027 13905 TRACE oslo.messaging.rpc.dispatcher     volume_utils.forget_sr(self._session, sr_uuid_map[sr_re
f])
2014-05-01 10:25:37.027 13905 TRACE oslo.messaging.rpc.dispatcher   File "/opt/rackstack/615.44/nova/lib/python2.6/site-packages/nova/openstack/common/excutils.py", line 68, in __exit__
2014-05-01 10:25:37.027 13905 TRACE oslo.messaging.rpc.dispatcher     six.reraise(self.type_, self.value, self.tb)
2014-05-01 10:25:37.027 13905 TRACE oslo.messaging.rpc.dispatcher   File "/opt/rackstack/615.44/nova/lib/python2.6/site-packages/nova/virt/xenapi/vmops.py", line 2307, in attach_block_device_volumes
2014-05-01 10:25:37.027 13905 TRACE oslo.messaging.rpc.dispatcher     hotplug=False)
2014-05-01 10:25:37.027 13905 TRACE oslo.messaging.rpc.dispatcher   File "/opt/rackstack/615.44/nova/lib/python2.6/site-packages/nova/virt/xenapi/volumeops.py", line 53, in attach_volume
2014-05-01 10:25:37.027 13905 TRACE oslo.messaging.rpc.dispatcher     vm_ref = vm_utils.vm_ref_or_raise(self._session, instance_name)
2014-05-01 10:25:37.027 13905 TRACE oslo.messaging.rpc.dispatcher   File "/opt/rackstack/615.44/nova/lib/python2.6/site-packages/nova/virt/xenapi/vm_utils.py", line 2661, in vm_ref_or_raise
2014-05-01 10:25:37.027 13905 TRACE oslo.messaging.rpc.dispatcher     vm_ref = lookup(session, instance_name)
2014-05-01 10:25:37.027 13905 TRACE oslo.messaging.rpc.dispatcher   File "/opt/rackstack/615.44/nova/lib/python2.6/site-packages/nova/virt/xenapi/vm_utils.py", line 1743, in lookup
2014-05-01 10:25:37.027 13905 TRACE oslo.messaging.rpc.dispatcher     vm_refs = session.call_xenapi("VM.get_by_name_label", name_label)
2014-05-01 10:25:37.027 13905 TRACE oslo.messaging.rpc.dispatcher   File "/opt/rackstack/615.44/nova/lib/python2.6/site-packages/nova/virt/xenapi/client/session.py", line 179, in call_xenapi
2014-05-01 10:25:37.027 13905 TRACE oslo.messaging.rpc.dispatcher     return session.xenapi_request(method, args)
2014-05-01 10:25:37.027 13905 TRACE oslo.messaging.rpc.dispatcher   File "/opt/rackstack/615.44/nova/lib/python2.6/site-packages/XenAPI.py", line 133, in xenapi_request
2014-05-01 10:25:37.027 13905 TRACE oslo.messaging.rpc.dispatcher     result = _parse_result(getattr(self, methodname)(*full_params))
2014-05-01 10:25:37.027 13905 TRACE oslo.messaging.rpc.dispatcher   File "/opt/rackstack/615.44/nova/lib/python2.6/site-packages/XenAPI.py", line 203, in _parse_result
2014-05-01 10:25:37.027 13905 TRACE oslo.messaging.rpc.dispatcher     raise Failure(result['ErrorDescription'])
2014-05-01 10:25:37.027 13905 TRACE oslo.messaging.rpc.dispatcher Failure: ['FIELD_TYPE_ERROR', 'label']


attach_block_device_volumes() in nova/virt/xenapi/vmops.py calls attach_volume() in nova/virt/xenapi/volumops.py and passes None for instance_name,  and this causes a failure when looking up the vm_ref.

** Affects: nova
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1317208

Title:
  Xen live-migrate with volume attached ends with FIELD_TYPE_ERROR
  failure

Status in OpenStack Compute (Nova):
  New

Bug description:
  The relevant portion of an example stack trace is below:

  2014-05-01 10:25:37.027 13905 TRACE oslo.messaging.rpc.dispatcher   File "/opt/rackstack/615.44/nova/lib/python2.6/site-packa
  ges/nova/virt/xenapi/vmops.py", line 2316, in attach_block_device_volumes
  2014-05-01 10:25:37.027 13905 TRACE oslo.messaging.rpc.dispatcher     volume_utils.forget_sr(self._session, sr_uuid_map[sr_re
  f])
  2014-05-01 10:25:37.027 13905 TRACE oslo.messaging.rpc.dispatcher   File "/opt/rackstack/615.44/nova/lib/python2.6/site-packages/nova/openstack/common/excutils.py", line 68, in __exit__
  2014-05-01 10:25:37.027 13905 TRACE oslo.messaging.rpc.dispatcher     six.reraise(self.type_, self.value, self.tb)
  2014-05-01 10:25:37.027 13905 TRACE oslo.messaging.rpc.dispatcher   File "/opt/rackstack/615.44/nova/lib/python2.6/site-packages/nova/virt/xenapi/vmops.py", line 2307, in attach_block_device_volumes
  2014-05-01 10:25:37.027 13905 TRACE oslo.messaging.rpc.dispatcher     hotplug=False)
  2014-05-01 10:25:37.027 13905 TRACE oslo.messaging.rpc.dispatcher   File "/opt/rackstack/615.44/nova/lib/python2.6/site-packages/nova/virt/xenapi/volumeops.py", line 53, in attach_volume
  2014-05-01 10:25:37.027 13905 TRACE oslo.messaging.rpc.dispatcher     vm_ref = vm_utils.vm_ref_or_raise(self._session, instance_name)
  2014-05-01 10:25:37.027 13905 TRACE oslo.messaging.rpc.dispatcher   File "/opt/rackstack/615.44/nova/lib/python2.6/site-packages/nova/virt/xenapi/vm_utils.py", line 2661, in vm_ref_or_raise
  2014-05-01 10:25:37.027 13905 TRACE oslo.messaging.rpc.dispatcher     vm_ref = lookup(session, instance_name)
  2014-05-01 10:25:37.027 13905 TRACE oslo.messaging.rpc.dispatcher   File "/opt/rackstack/615.44/nova/lib/python2.6/site-packages/nova/virt/xenapi/vm_utils.py", line 1743, in lookup
  2014-05-01 10:25:37.027 13905 TRACE oslo.messaging.rpc.dispatcher     vm_refs = session.call_xenapi("VM.get_by_name_label", name_label)
  2014-05-01 10:25:37.027 13905 TRACE oslo.messaging.rpc.dispatcher   File "/opt/rackstack/615.44/nova/lib/python2.6/site-packages/nova/virt/xenapi/client/session.py", line 179, in call_xenapi
  2014-05-01 10:25:37.027 13905 TRACE oslo.messaging.rpc.dispatcher     return session.xenapi_request(method, args)
  2014-05-01 10:25:37.027 13905 TRACE oslo.messaging.rpc.dispatcher   File "/opt/rackstack/615.44/nova/lib/python2.6/site-packages/XenAPI.py", line 133, in xenapi_request
  2014-05-01 10:25:37.027 13905 TRACE oslo.messaging.rpc.dispatcher     result = _parse_result(getattr(self, methodname)(*full_params))
  2014-05-01 10:25:37.027 13905 TRACE oslo.messaging.rpc.dispatcher   File "/opt/rackstack/615.44/nova/lib/python2.6/site-packages/XenAPI.py", line 203, in _parse_result
  2014-05-01 10:25:37.027 13905 TRACE oslo.messaging.rpc.dispatcher     raise Failure(result['ErrorDescription'])
  2014-05-01 10:25:37.027 13905 TRACE oslo.messaging.rpc.dispatcher Failure: ['FIELD_TYPE_ERROR', 'label']

  
  attach_block_device_volumes() in nova/virt/xenapi/vmops.py calls attach_volume() in nova/virt/xenapi/volumops.py and passes None for instance_name,  and this causes a failure when looking up the vm_ref.

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