2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server [req-aabcdae0-5e1b-4973-acb5-37b63e72bf0c 648668eab36942a88df88fae42ca1a99 70bb85f24e6e46298e6adc980761f9d9 - default default] Exception during message handling: ValueError:
 Circular reference detected
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server Traceback (most recent call last):
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server   File "/var/lib/kolla/venv/lib/python3.6/site-packages/nova/compute/utils.py", line 1434, in decorated_function
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server     return function(self, context, *args, **kwargs)
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server   File "/var/lib/kolla/venv/lib/python3.6/site-packages/nova/compute/manager.py", line 142, in decorated_function
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server     return function(self, context, *args, **kwargs)
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server   File "/var/lib/kolla/venv/lib/python3.6/site-packages/nova/compute/manager.py", line 200, in decorated_function
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server     return function(self, context, *args, **kwargs)
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server   File "/var/lib/kolla/venv/lib/python3.6/site-packages/nova/compute/manager.py", line 4933, in finish_revert_resize
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server     context, instance, migration, request_spec)
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server   File "/var/lib/kolla/venv/lib/python3.6/site-packages/nova/compute/manager.py", line 4977, in _finish_revert_resize
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server     context, instance, migration, provider_mappings)
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server   File "/var/lib/kolla/venv/lib/python3.6/site-packages/nova/compute/manager.py", line 4917, in _finish_revert_resize_network_migrate_finish
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server     instance=instance)
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server   File "/var/lib/kolla/venv/lib/python3.6/site-packages/oslo_utils/excutils.py", line 227, in __exit__
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server     self.force_reraise()
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server   File "/var/lib/kolla/venv/lib/python3.6/site-packages/oslo_utils/excutils.py", line 200, in force_reraise
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server     raise self.value
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server   File "/var/lib/kolla/venv/lib/python3.6/site-packages/nova/compute/manager.py", line 4913, in _finish_revert_resize_network_migrate_finish
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server     context, instance, migration, provider_mappings)
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server   File "/usr/lib64/python3.6/contextlib.py", line 88, in __exit__
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server     next(self.gen)
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server   File "/var/lib/kolla/venv/lib/python3.6/site-packages/nova/compute/manager.py", line 479, in wait_for_instance_event
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server     actual_event = event.wait()
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server   File "/var/lib/kolla/venv/lib/python3.6/site-packages/eventlet/event.py", line 125, in wait
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server     result = hub.switch()
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server   File "/var/lib/kolla/venv/lib/python3.6/site-packages/eventlet/hubs/hub.py", line 313, in switch
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server     return self.greenlet.switch()
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server eventlet.timeout.Timeout: 300 seconds
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server 
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server During handling of the above exception, another exception occurred:
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server 
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server Traceback (most recent call last):
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server   File "/var/lib/kolla/venv/lib/python3.6/site-packages/oslo_messaging/rpc/server.py", line 165, in _process_incoming
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server     res = self.dispatcher.dispatch(message)
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server   File "/var/lib/kolla/venv/lib/python3.6/site-packages/oslo_messaging/rpc/dispatcher.py", line 309, in dispatch
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server     return self._do_dispatch(endpoint, method, ctxt, args)
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server   File "/var/lib/kolla/venv/lib/python3.6/site-packages/oslo_messaging/rpc/dispatcher.py", line 229, in _do_dispatch
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server     result = func(ctxt, **new_args)
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server   File "/var/lib/kolla/venv/lib/python3.6/site-packages/nova/exception_wrapper.py", line 72, in wrapped
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server     context, exc, binary)
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server   File "/var/lib/kolla/venv/lib/python3.6/site-packages/oslo_utils/excutils.py", line 227, in __exit__
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server     self.force_reraise()
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server   File "/var/lib/kolla/venv/lib/python3.6/site-packages/oslo_utils/excutils.py", line 200, in force_reraise
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server     raise self.value
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server   File "/var/lib/kolla/venv/lib/python3.6/site-packages/nova/exception_wrapper.py", line 63, in wrapped
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server     return f(self, context, *args, **kw)
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server   File "/var/lib/kolla/venv/lib/python3.6/site-packages/nova/compute/manager.py", line 184, in decorated_function
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server     "Error: %s", e, instance=instance)
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server   File "/var/lib/kolla/venv/lib/python3.6/site-packages/oslo_utils/excutils.py", line 227, in __exit__
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server     self.force_reraise()
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server   File "/var/lib/kolla/venv/lib/python3.6/site-packages/oslo_utils/excutils.py", line 200, in force_reraise
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server     raise self.value
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server   File "/var/lib/kolla/venv/lib/python3.6/site-packages/nova/compute/manager.py", line 154, in decorated_function
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server     return function(self, context, *args, **kwargs)
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server   File "/var/lib/kolla/venv/lib/python3.6/site-packages/nova/compute/utils.py", line 1434, in decorated_function
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server     return function(self, context, *args, **kwargs)
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server   File "/var/lib/kolla/venv/lib/python3.6/site-packages/nova/compute/utils.py", line 1397, in __exit__
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server     exc_tb=exc_tb, want_result=False)
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server   File "/var/lib/kolla/venv/lib/python3.6/site-packages/nova/objects/base.py", line 355, in wrapper
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server     return fn.__get__(None, obj)(*args, **kwargs)
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server   File "/var/lib/kolla/venv/lib/python3.6/site-packages/oslo_versionedobjects/base.py", line 177, in wrapper
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server     args, kwargs)
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server   File "/var/lib/kolla/venv/lib/python3.6/site-packages/nova/conductor/rpcapi.py", line 243, in object_class_action_versions
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server     args=args, kwargs=kwargs)
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server   File "/var/lib/kolla/venv/lib/python3.6/site-packages/oslo_messaging/rpc/client.py", line 179, in call
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server     transport_options=self.transport_options)
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server   File "/var/lib/kolla/venv/lib/python3.6/site-packages/oslo_messaging/transport.py", line 128, in _send
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server     transport_options=transport_options)
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server   File "/var/lib/kolla/venv/lib/python3.6/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 682, in send
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server     transport_options=transport_options)
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server   File "/var/lib/kolla/venv/lib/python3.6/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 635, in _send
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server     msg = rpc_common.serialize_msg(msg)
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server   File "/var/lib/kolla/venv/lib/python3.6/site-packages/oslo_messaging/_drivers/common.py", line 292, in serialize_msg
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server     _MESSAGE_KEY: jsonutils.dumps(raw_msg)}
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server   File "/var/lib/kolla/venv/lib/python3.6/site-packages/oslo_serialization/jsonutils.py", line 202, in dumps
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server     return json.dumps(obj, default=default, **kwargs)
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server   File "/usr/lib64/python3.6/json/__init__.py", line 238, in dumps
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server     **kw).encode(obj)
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server   File "/usr/lib64/python3.6/json/encoder.py", line 199, in encode
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server     chunks = self.iterencode(o, _one_shot=True)
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server   File "/usr/lib64/python3.6/json/encoder.py", line 257, in iterencode
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server     return _iterencode(o, 0)
2022-01-12 17:03:58.390 7 ERROR oslo_messaging.rpc.server ValueError: Circular reference detected