Dec 13 17:14:19 devstack nova-compute[28245]: ERROR nova.compute.manager [req-3f088852-8995-4cdd-b83f-0d4bf6e4b648 req-c0e57416-5f97-45a3-ad58-d1ab03c70439 service nova] [instance: 1d5690a9-4983-4d96-957d-86fe541d6b79] Failed to swap volume 2dd39db6-445a-47fd-ba5e-bddb8bca2635 for 7d12f257-a0ad-4920-ad6d-61dd2299caad: NotImplementedError: Swap only supports host devices
Dec 13 17:14:19 devstack nova-compute[28245]: ERROR nova.compute.manager [instance: 1d5690a9-4983-4d96-957d-86fe541d6b79] Traceback (most recent call last):
Dec 13 17:14:19 devstack nova-compute[28245]: ERROR nova.compute.manager [instance: 1d5690a9-4983-4d96-957d-86fe541d6b79]   File "/opt/stack/nova/nova/compute/manager.py", line 5900, in _swap_volume
Dec 13 17:14:19 devstack nova-compute[28245]: ERROR nova.compute.manager [instance: 1d5690a9-4983-4d96-957d-86fe541d6b79]     mountpoint, resize_to)
Dec 13 17:14:19 devstack nova-compute[28245]: ERROR nova.compute.manager [instance: 1d5690a9-4983-4d96-957d-86fe541d6b79]   File "/opt/stack/nova/nova/virt/libvirt/driver.py", line 1619, in swap_volume
Dec 13 17:14:19 devstack nova-compute[28245]: ERROR nova.compute.manager [instance: 1d5690a9-4983-4d96-957d-86fe541d6b79]     raise NotImplementedError(_("Swap only supports host devices"))
Dec 13 17:14:19 devstack nova-compute[28245]: ERROR nova.compute.manager [instance: 1d5690a9-4983-4d96-957d-86fe541d6b79] NotImplementedError: Swap only supports host devices
Dec 13 17:14:19 devstack nova-compute[28245]: ERROR nova.compute.manager [instance: 1d5690a9-4983-4d96-957d-86fe541d6b79] 
Dec 13 17:14:21 devstack nova-compute[28245]: ERROR oslo_messaging.rpc.server [req-3f088852-8995-4cdd-b83f-0d4bf6e4b648 req-c0e57416-5f97-45a3-ad58-d1ab03c70439 service nova] Exception during message handling: NotImplementedError: Swap only supports host devices
Dec 13 17:14:21 devstack nova-compute[28245]: ERROR oslo_messaging.rpc.server Traceback (most recent call last):
Dec 13 17:14:21 devstack nova-compute[28245]: ERROR oslo_messaging.rpc.server   File "/usr/local/lib/python2.7/dist-packages/oslo_messaging/rpc/server.py", line 166, in _process_incoming
Dec 13 17:14:21 devstack nova-compute[28245]: ERROR oslo_messaging.rpc.server     res = self.dispatcher.dispatch(message)
Dec 13 17:14:21 devstack nova-compute[28245]: ERROR oslo_messaging.rpc.server   File "/usr/local/lib/python2.7/dist-packages/oslo_messaging/rpc/dispatcher.py", line 265, in dispatch
Dec 13 17:14:21 devstack nova-compute[28245]: ERROR oslo_messaging.rpc.server     return self._do_dispatch(endpoint, method, ctxt, args)
Dec 13 17:14:21 devstack nova-compute[28245]: ERROR oslo_messaging.rpc.server   File "/usr/local/lib/python2.7/dist-packages/oslo_messaging/rpc/dispatcher.py", line 194, in _do_dispatch
Dec 13 17:14:21 devstack nova-compute[28245]: ERROR oslo_messaging.rpc.server     result = func(ctxt, **new_args)
Dec 13 17:14:21 devstack nova-compute[28245]: ERROR oslo_messaging.rpc.server   File "/opt/stack/nova/nova/exception_wrapper.py", line 79, in wrapped
Dec 13 17:14:21 devstack nova-compute[28245]: ERROR oslo_messaging.rpc.server     function_name, call_dict, binary, tb)
Dec 13 17:14:21 devstack nova-compute[28245]: ERROR oslo_messaging.rpc.server   File "/usr/local/lib/python2.7/dist-packages/oslo_utils/excutils.py", line 220, in __exit__
Dec 13 17:14:21 devstack nova-compute[28245]: ERROR oslo_messaging.rpc.server     self.force_reraise()
Dec 13 17:14:21 devstack nova-compute[28245]: ERROR oslo_messaging.rpc.server   File "/usr/local/lib/python2.7/dist-packages/oslo_utils/excutils.py", line 196, in force_reraise
Dec 13 17:14:21 devstack nova-compute[28245]: ERROR oslo_messaging.rpc.server     six.reraise(self.type_, self.value, self.tb)
Dec 13 17:14:21 devstack nova-compute[28245]: ERROR oslo_messaging.rpc.server   File "/opt/stack/nova/nova/exception_wrapper.py", line 69, in wrapped
Dec 13 17:14:21 devstack nova-compute[28245]: ERROR oslo_messaging.rpc.server     return f(self, context, *args, **kw)
Dec 13 17:14:21 devstack nova-compute[28245]: ERROR oslo_messaging.rpc.server   File "/opt/stack/nova/nova/compute/utils.py", line 1164, in decorated_function
Dec 13 17:14:21 devstack nova-compute[28245]: ERROR oslo_messaging.rpc.server     return function(self, context, *args, **kwargs)
Dec 13 17:14:21 devstack nova-compute[28245]: ERROR oslo_messaging.rpc.server   File "/opt/stack/nova/nova/compute/manager.py", line 217, in decorated_function
Dec 13 17:14:21 devstack nova-compute[28245]: ERROR oslo_messaging.rpc.server     kwargs['instance'], e, sys.exc_info())
Dec 13 17:14:21 devstack nova-compute[28245]: ERROR oslo_messaging.rpc.server   File "/usr/local/lib/python2.7/dist-packages/oslo_utils/excutils.py", line 220, in __exit__
Dec 13 17:14:21 devstack nova-compute[28245]: ERROR oslo_messaging.rpc.server     self.force_reraise()
Dec 13 17:14:21 devstack nova-compute[28245]: ERROR oslo_messaging.rpc.server   File "/usr/local/lib/python2.7/dist-packages/oslo_utils/excutils.py", line 196, in force_reraise
Dec 13 17:14:21 devstack nova-compute[28245]: ERROR oslo_messaging.rpc.server     six.reraise(self.type_, self.value, self.tb)
Dec 13 17:14:21 devstack nova-compute[28245]: ERROR oslo_messaging.rpc.server   File "/opt/stack/nova/nova/compute/manager.py", line 205, in decorated_function
Dec 13 17:14:21 devstack nova-compute[28245]: ERROR oslo_messaging.rpc.server     return function(self, context, *args, **kwargs)
Dec 13 17:14:21 devstack nova-compute[28245]: ERROR oslo_messaging.rpc.server   File "/opt/stack/nova/nova/compute/manager.py", line 6045, in swap_volume
Dec 13 17:14:21 devstack nova-compute[28245]: ERROR oslo_messaging.rpc.server     is_cinder_migration)
Dec 13 17:14:21 devstack nova-compute[28245]: ERROR oslo_messaging.rpc.server   File "/opt/stack/nova/nova/compute/manager.py", line 5943, in _swap_volume
Dec 13 17:14:21 devstack nova-compute[28245]: ERROR oslo_messaging.rpc.server     context, new_attachment_id)
Dec 13 17:14:21 devstack nova-compute[28245]: ERROR oslo_messaging.rpc.server   File "/usr/local/lib/python2.7/dist-packages/oslo_utils/excutils.py", line 220, in __exit__
Dec 13 17:14:21 devstack nova-compute[28245]: ERROR oslo_messaging.rpc.server     self.force_reraise()
Dec 13 17:14:21 devstack nova-compute[28245]: ERROR oslo_messaging.rpc.server   File "/usr/local/lib/python2.7/dist-packages/oslo_utils/excutils.py", line 196, in force_reraise
Dec 13 17:14:21 devstack nova-compute[28245]: ERROR oslo_messaging.rpc.server     six.reraise(self.type_, self.value, self.tb)
Dec 13 17:14:21 devstack nova-compute[28245]: ERROR oslo_messaging.rpc.server   File "/opt/stack/nova/nova/compute/manager.py", line 5900, in _swap_volume
Dec 13 17:14:21 devstack nova-compute[28245]: ERROR oslo_messaging.rpc.server     mountpoint, resize_to)
Dec 13 17:14:21 devstack nova-compute[28245]: ERROR oslo_messaging.rpc.server   File "/opt/stack/nova/nova/virt/libvirt/driver.py", line 1619, in swap_volume
Dec 13 17:14:21 devstack nova-compute[28245]: ERROR oslo_messaging.rpc.server     raise NotImplementedError(_("Swap only supports host devices"))
Dec 13 17:14:21 devstack nova-compute[28245]: ERROR oslo_messaging.rpc.server NotImplementedError: Swap only supports host devices
Dec 13 17:14:21 devstack nova-compute[28245]: ERROR oslo_messaging.rpc.server