2021-02-09 10:59:33. 624, 1865 ERROR oslo_messaging.. RPC server res=self. The dispatcher. Dispatch (the message) 
2021-02-09 10:59:33. 624, 1865 ERROR oslo_messaging. RPC. Server File "/usr/lib/python2.7/site - packages/oslo_messaging/RPC/dispatcher. Py", line 265, dispatch in 
10:59:33. 2021-02-09, 624, 1865 ERROR oslo_messaging. RPC. Server return self. _do_dispatch (the endpoint method, CTXT, args) 
2021-02-09 10:59:33. 624, 1865 ERROR oslo_messaging. RPC. Server File "/usr/lib/python2.7/site - packages/oslo_messaging/RPC/dispatcher. Py", line 194, in _do_dispatch 
The 2021-02-09 10:59:33. 624, 1865 ERROR oslo_messaging. RPC. Server result=func (CTXT, * * new_args) 
The 2021-02-09 10:59:33. 624, 1865 ERROR oslo_messaging. RPC. Server File "& lt; string>" , line 2, in create_volume 
2021-02-09 10:59:33. 624, 1865 ERROR oslo_messaging. RPC. Server File "/usr/lib/python2.7/site - packages/cinder/objects/cleanable. Py", line 208, the wrapper in 
2021-02-09 10:59:33. 624, 1865 ERROR oslo_messaging. RPC. Server result=f (* args, * * kwargs) 
2021-02-09 10:59:33. 624, 1865 ERROR oslo_messaging. RPC. Server File "/usr/lib/python2.7/site - packages/cinder/volume/manager. Py", line 749, in create_volume 
The 2021-02-09 10:59:33. 624, 1865 ERROR oslo_messaging. RPC. Server _run_flow () 
2021-02-09 10:59:33. 624, 1865 ERROR oslo_messaging. RPC. Server File "/usr/lib/python2.7/site - packages/cinder/volume/manager. Py", line 741, in _run_flow 
The 2021-02-09 10:59:33. 624, 1865 ERROR oslo_messaging. RPC. Server flow_engine. The run () 
10:59:33. 2021-02-09, 624, 1865 ERROR oslo_messaging. RPC. Server File "/usr/lib/python2.7/site - packages/taskflow/engines/action_engine/engine. Py", line 247, in the run 
2021-02-09 10:59:33. 624, 1865 ERROR oslo_messaging. RPC. Server for _state in self. Run_iter (timeout=timeout) : 
10:59:33. 2021-02-09, 624, 1865 ERROR oslo_messaging. RPC. Server File "/usr/lib/python2.7/site - packages/taskflow/engines/action_engine/engine. Py", line 340, in run_iter 
The 2021-02-09 10:59:33. 624, 1865 ERROR oslo_messaging. RPC. Server failure. Failure. Reraise_if_any (er_failures) 
2021-02-09 10:59:33. 624, 1865 ERROR oslo_messaging. RPC. Server File "/usr/lib/python2.7/site - packages/taskflow/types/failure. Py", line 339, in reraise_if_any 
The 2021-02-09 10:59:33. 624, 1865 ERROR oslo_messaging. RPC. Server failures [0]. Reraise () 
2021-02-09 10:59:33. 624, 1865 ERROR oslo_messaging. RPC. Server File "/usr/lib/python2.7/site - packages/taskflow/types/failure. Py", line 346, reraise in 
The 2021-02-09 10:59:33. 624, 1865 ERROR oslo_messaging. RPC. Server six. Reraise (* self. _exc_info) 
2021-02-09 10:59:33. 624, 1865 ERROR oslo_messaging. RPC. Server File "/usr/lib/python2.7/site - packages/taskflow/engines/action_engine/executor. Py", line 53, in _execute_task 
The 2021-02-09 10:59:33. 624, 1865 ERROR oslo_messaging. RPC. Server result=task. Execute the arguments (* *) 
2021-02-09 10:59:33. 624, 1865 ERROR oslo_messaging. RPC. Server File "/usr/lib/python2.7/site - packages/cinder/volume/flows/manager/create_volume py", line 980, in the execute 
The 2021-02-09 10:59:33. 624, 1865 ERROR oslo_messaging. RPC. Server * * volume_spec) 
2021-02-09 10:59:33. 624, 1865 ERROR oslo_messaging. RPC. Server File "/usr/lib/python2.7/site - packages/cinder/utils. Py", line 818, in _wrapper 
The 2021-02-09 10:59:33. 624, 1865 ERROR oslo_messaging. RPC. Server return r.c all (f * args, * * kwargs) 
The 2021-02-09 10:59:33. 624, 1865 ERROR oslo_messaging. RPC. Server File "/usr/lib/python2.7/site - packages/retrying. Py", line 223, in the call 
The 2021-02-09 10:59:33. 624, 1865 ERROR oslo_messaging. RPC. Server return attempt. Get (self. _wrap_exception) 
The 2021-02-09 10:59:33. 624, 1865 ERROR oslo_messaging. RPC. Server File "/usr/lib/python2.7/site - packages/retrying. Py", line 261, in the get 
10:59:33. 2021-02-09, 624, 1865 ERROR oslo_messaging. RPC. Server. Six reraise (self value [0], the self. The value [1], the self. The value [2]) 
The 2021-02-09 10:59:33. 624, 1865 ERROR oslo_messaging. RPC. Server File "/usr/lib/python2.7/site - packages/retrying. Py", line 217, in the call 
The 2021-02-09 10:59:33. 624, 1865 ERROR oslo_messaging. RPC. Server attempt=attempt (fn (* args, * * kwargs), attempt_number, False)