017-06-23 04:45:07.557 18996 ERROR oslo_messaging.rpc.server [req-6ee3bbc0-bf4f-4ef7-8ab4-7fa22097e756 e3029e24b1954ba8bf85664d7c44bd5f b440f3f88dbb4008b917bb99672657b5 default - -] Exception during message handling
2017-06-23 04:45:07.557 18996 ERROR oslo_messaging.rpc.server Traceback (most recent call last):
2017-06-23 04:45:07.557 18996 ERROR oslo_messaging.rpc.server   File "/usr/lib/python2.7/dist-packages/oslo_messaging/rpc/server.py", line 155, in _process_incoming
2017-06-23 04:45:07.557 18996 ERROR oslo_messaging.rpc.server     res = self.dispatcher.dispatch(message)
2017-06-23 04:45:07.557 18996 ERROR oslo_messaging.rpc.server   File "/usr/lib/python2.7/dist-packages/oslo_messaging/rpc/dispatcher.py", line 222, in dispatch
2017-06-23 04:45:07.557 18996 ERROR oslo_messaging.rpc.server     return self._do_dispatch(endpoint, method, ctxt, args)
2017-06-23 04:45:07.557 18996 ERROR oslo_messaging.rpc.server   File "/usr/lib/python2.7/dist-packages/oslo_messaging/rpc/dispatcher.py", line 192, in _do_dispatch
2017-06-23 04:45:07.557 18996 ERROR oslo_messaging.rpc.server     result = func(ctxt, **new_args)
2017-06-23 04:45:07.557 18996 ERROR oslo_messaging.rpc.server   File "/usr/lib/python2.7/dist-packages/osprofiler/profiler.py", line 153, in wrapper
2017-06-23 04:45:07.557 18996 ERROR oslo_messaging.rpc.server     return f(*args, **kwargs)
2017-06-23 04:45:07.557 18996 ERROR oslo_messaging.rpc.server   File "/usr/lib/python2.7/dist-packages/magnum/conductor/handlers/cluster_conductor.py", line 81, in cluster_create
2017-06-23 04:45:07.557 18996 ERROR oslo_messaging.rpc.server     raise
2017-06-23 04:45:07.557 18996 ERROR oslo_messaging.rpc.server InvalidParameterValue: ERROR: The Parameter (docker_volume_type) was not provided.
2017-06-23 04:45:07.557 18996 ERROR oslo_messaging.rpc.server