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[Bug 1815466] Re: Live migrate abort results in instance going into an error state

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[Expired for OpenStack Compute (nova) because there has been no activity
for 60 days.]

** Changed in: nova
       Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/1815466

Title:
  Live migrate abort results in instance going into an error state

Status in OpenStack Compute (nova):
  Expired

Bug description:
  Only the libvirt driver supports live migration abort (and that may
  have some caveates if the action results in a exception). If the call
  takes places with a driver that does not support the opertaion then
  the follow stack trace appears:

  nova live-migration-abort doesn’t work.

  It failed with exception "NotImplementedError".

  
  Steps:
  1) Do live migration (make sure vmkernel adaptors has vmotion enabled)
  2) During live-migration is going on from one cluster to another trigger command nova live-migration-abort.
  3) you will see nova instance goes into ERROR state.

  nova-compute error logs:
  ========================
  2019-02-05 18:28:59.040 31616 ERROR oslo_messaging.rpc.server [req-8cca230a-2ef0-4af4-9172-2259a38496ba fbb20822241440e7acac310fdc238280 bf2edf2a7ddc48a299f183b8da055c46 - d5b840b9e52c43d3ad9e208e22ad531f d5b840b9e52c43d3ad9e208e22ad531f] Exception during message handling: NotImplementedError
  2019-02-05 18:28:59.040 31616 ERROR oslo_messaging.rpc.server Traceback (most recent call last):
  2019-02-05 18:28:59.040 31616 ERROR oslo_messaging.rpc.server File "/usr/lib/python2.7/dist-packages/oslo_messaging/rpc/server.py", line 163, in _process_incoming
  2019-02-05 18:28:59.040 31616 ERROR oslo_messaging.rpc.server res = self.dispatcher.dispatch(message)
  2019-02-05 18:28:59.040 31616 ERROR oslo_messaging.rpc.server File "/usr/lib/python2.7/dist-packages/oslo_messaging/rpc/dispatcher.py", line 220, in dispatch
  2019-02-05 18:28:59.040 31616 ERROR oslo_messaging.rpc.server return self._do_dispatch(endpoint, method, ctxt, args)
  2019-02-05 18:28:59.040 31616 ERROR oslo_messaging.rpc.server File "/usr/lib/python2.7/dist-packages/oslo_messaging/rpc/dispatcher.py", line 190, in _do_dispatch
  2019-02-05 18:28:59.040 31616 ERROR oslo_messaging.rpc.server result = func(ctxt, **new_args)
  2019-02-05 18:28:59.040 31616 ERROR oslo_messaging.rpc.server File "/usr/lib/python2.7/dist-packages/nova/exception_wrapper.py", line 76, in wrapped
  2019-02-05 18:28:59.040 31616 ERROR oslo_messaging.rpc.server function_name, call_dict, binary)
  2019-02-05 18:28:59.040 31616 ERROR oslo_messaging.rpc.server File "/usr/lib/python2.7/dist-packages/oslo_utils/excutils.py", line 220, in __exit__
  2019-02-05 18:28:59.040 31616 ERROR oslo_messaging.rpc.server self.force_reraise()
  2019-02-05 18:28:59.040 31616 ERROR oslo_messaging.rpc.server File "/usr/lib/python2.7/dist-packages/oslo_utils/excutils.py", line 196, in force_reraise
  2019-02-05 18:28:59.040 31616 ERROR oslo_messaging.rpc.server six.reraise(self.type_, self.value, self.tb)
  2019-02-05 18:28:59.040 31616 ERROR oslo_messaging.rpc.server File "/usr/lib/python2.7/dist-packages/nova/exception_wrapper.py", line 67, in wrapped
  2019-02-05 18:28:59.040 31616 ERROR oslo_messaging.rpc.server return f(self, context, *args, **kw)
  2019-02-05 18:28:59.040 31616 ERROR oslo_messaging.rpc.server File "/usr/lib/python2.7/dist-packages/nova/compute/utils.py", line 977, in decorated_function
  2019-02-05 18:28:59.040 31616 ERROR oslo_messaging.rpc.server return function(self, context, *args, **kwargs)
  2019-02-05 18:28:59.040 31616 ERROR oslo_messaging.rpc.server File "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 214, in decorated_function
  2019-02-05 18:28:59.040 31616 ERROR oslo_messaging.rpc.server kwargs['instance'], e, sys.exc_info())
  2019-02-05 18:28:59.040 31616 ERROR oslo_messaging.rpc.server File "/usr/lib/python2.7/dist-packages/oslo_utils/excutils.py", line 220, in __exit__
  2019-02-05 18:28:59.040 31616 ERROR oslo_messaging.rpc.server self.force_reraise()
  2019-02-05 18:28:59.040 31616 ERROR oslo_messaging.rpc.server File "/usr/lib/python2.7/dist-packages/oslo_utils/excutils.py", line 196, in force_reraise
  2019-02-05 18:28:59.040 31616 ERROR oslo_messaging.rpc.server six.reraise(self.type_, self.value, self.tb)
  2019-02-05 18:28:59.040 31616 ERROR oslo_messaging.rpc.server File "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 202, in decorated_function
  2019-02-05 18:28:59.040 31616 ERROR oslo_messaging.rpc.server return function(self, context, *args, **kwargs)
  2019-02-05 18:28:59.040 31616 ERROR oslo_messaging.rpc.server File "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 6304, in live_migration_abort
  2019-02-05 18:28:59.040 31616 ERROR oslo_messaging.rpc.server self.driver.live_migration_abort(instance)
  2019-02-05 18:28:59.040 31616 ERROR oslo_messaging.rpc.server File "/usr/lib/python2.7/dist-packages/nova/virt/driver.py", line 943, in live_migration_abort
  2019-02-05 18:28:59.040 31616 ERROR oslo_messaging.rpc.server raise NotImplementedError()
  2019-02-05 18:28:59.040 31616 ERROR oslo_messaging.rpc.server NotImplementedError
  2019-02-05 18:28:59.040 31616 ERROR oslo_messaging.rpc.server

  This will resulty in the instance being in an ERROR state (although it
  clearly is not)

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References

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