Get the following errors in neutron server logs during trunk port creation:
2018-09-11 11:24:49.115 864743 ERROR oslo.messaging._drivers.impl_rabbit [req-8afaa4e0-ebea-4651-93c2-c9948781a0dc 4dab2227df0743498f54b0211dbe338f 11156cbc56b848ef94a84eece8e09acd - default default] Failed to publish message to topic 'neutron': Trunk(admin_state_up=True,created_at=2018-09-11T11:24:49Z,description='',id=73835d1f-c9c3-435a-8f7e-b98eaa7f6873,name='trunk0',port_id=9f5b9665-d1a7-4d07-ac7d-da77ba43b371,project_id='11156cbc56b848ef94a84eece8e09acd',revision_number=0,status='DOWN',sub_ports=[SubPort],updated_at=2018-09-11T11:24:49Z) is not JSON serializable: EncodeError: Trunk(admin_state_up=True,created_at=2018-09-11T11:24:49Z,description='',id=73835d1f-c9c3-435a-8f7e-b98eaa7f6873,name='trunk0',port_id=9f5b9665-d1a7-4d07-ac7d-da77ba43b371,project_id='11156cbc56b848ef94a84eece8e09acd',revision_number=0,status='DOWN',sub_ports=[SubPort],updated_at=2018-09-11T11:24:49Z) is not JSON serializable
2018-09-11 11:24:49.116 864743 ERROR oslo_messaging.notify.messaging [req-8afaa4e0-ebea-4651-93c2-c9948781a0dc 4dab2227df0743498f54b0211dbe338f 11156cbc56b848ef94a84eece8e09acd - default default] Could not send notification to notifications. Payload={'_context_domain': None, '_context_roles': [u'admin'], '_context_global_request_id': None, '_context_tenant_name': u'admin', 'event_type': 'trunk.create.end', '_context_request_id': 'req-8afaa4e0-ebea-4651-93c2-c9948781a0dc', 'timestamp': u'2018-09-11 11:24:49.113524', '_context_user': u'4dab2227df0743498f54b0211dbe338f', '_unique_id': 'e20ca044069d4ab49f30352fbca2a6cc', '_context_resource_uuid': None, '_context_tenant_id': u'11156cbc56b848ef94a84eece8e09acd', '_context_is_admin_project': True, '_context_user_id': u'4dab2227df0743498f54b0211dbe338f', 'payload': {'trunk': Trunk(admin_state_up=True,created_at=2018-09-11T11:24:49Z,description='',id=73835d1f-c9c3-435a-8f7e-b98eaa7f6873,name='trunk0',port_id=9f5b9665-d1a7-4d07-ac7d-da77ba43b371,project_id='11156cbc56b848ef94a84eece8e09acd',revision_number=0,status='DOWN',sub_ports=[SubPort],updated_at=2018-09-11T11:24:49Z)}, '_context_project_name': u'admin', '_context_user_identity': u'4dab2227df0743498f54b0211dbe338f 11156cbc56b848ef94a84eece8e09acd - default default', '_context_auth_token': 'gAAAAABbl6YAuszAV_Krh4CTZOhtlVB6eHpJDMCMqGdgzi1awJS0yZrf41EmLBun2fcYYj0NvY6vw9_78X6SskOMsTMgyu2mT_V82NhdsbvdCTZJhgRLMzc6cz-VDxT7gXvtpqyCOjMBi7Iy7ICho_AhzWzPsLgrBfQdOLQA-6QhfUpM9wSOG-U', '_context_show_deleted': False, '_context_tenant': u'11156cbc56b848ef94a84eece8e09acd', 'priority': 'INFO', '_context_read_only': False, '_context_is_admin': True, '_context_project_id': u'11156cbc56b848ef94a84eece8e09acd', '_context_project_domain': u'default', '_context_timestamp': '2018-09-11 11:24:48.728061', '_context_user_domain': u'default', '_context_user_name': u'admin', 'publisher_id': 'network.overcloud-controller-0.opnfvlf.org', 'message_id': u'f61b0e8f-32d2-42c4-81c7-7612ad5431e4'}: EncodeError: Trunk(admin_state_up=True,created_at=2018-09-11T11:24:49Z,description='',id=73835d1f-c9c3-435a-8f7e-b98eaa7f6873,name='trunk0',port_id=9f5b9665-d1a7-4d07-ac7d-da77ba43b371,project_id='11156cbc56b848ef94a84eece8e09acd',revision_number=0,status='DOWN',sub_ports=[SubPort],updated_at=2018-09-11T11:24:49Z) is not JSON serializable
2018-09-11 11:24:49.116 864743 ERROR oslo_messaging.notify.messaging Traceback (most recent call last):
2018-09-11 11:24:49.116 864743 ERROR oslo_messaging.notify.messaging File "/usr/lib/python2.7/site-packages/oslo_messaging/notify/messaging.py", line 70, in notify
2018-09-11 11:24:49.116 864743 ERROR oslo_messaging.notify.messaging retry=retry)
2018-09-11 11:24:49.116 864743 ERROR oslo_messaging.notify.messaging File "/usr/lib/python2.7/site-packages/oslo_messaging/transport.py", line 130, in _send_notification
2018-09-11 11:24:49.116 864743 ERROR oslo_messaging.notify.messaging retry=retry)
2018-09-11 11:24:49.116 864743 ERROR oslo_messaging.notify.messaging File "/usr/lib/python2.7/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 570, in send_notification
2018-09-11 11:24:49.116 864743 ERROR oslo_messaging.notify.messaging envelope=(version == 2.0), notify=True, retry=retry)
2018-09-11 11:24:49.116 864743 ERROR oslo_messaging.notify.messaging File "/usr/lib/python2.7/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 535, in _send
2018-09-11 11:24:49.116 864743 ERROR oslo_messaging.notify.messaging conn.notify_send(exchange, target.topic, msg, retry=retry)
2018-09-11 11:24:49.116 864743 ERROR oslo_messaging.notify.messaging File "/usr/lib/python2.7/site-packages/oslo_messaging/_drivers/impl_rabbit.py", line 1298, in notify_send
2018-09-11 11:24:49.116 864743 ERROR oslo_messaging.notify.messaging exchange, msg, routing_key=topic, retry=retry)
2018-09-11 11:24:49.116 864743 ERROR oslo_messaging.notify.messaging File "/usr/lib/python2.7/site-packages/oslo_messaging/_drivers/impl_rabbit.py", line 1161, in _ensure_publishing
2018-09-11 11:24:49.116 864743 ERROR oslo_messaging.notify.messaging self.ensure(method, retry=retry, error_callback=_error_callback)
2018-09-11 11:24:49.116 864743 ERROR oslo_messaging.notify.messaging File "/usr/lib/python2.7/site-packages/oslo_messaging/_drivers/impl_rabbit.py", line 807, in ensure
2018-09-11 11:24:49.116 864743 ERROR oslo_messaging.notify.messaging ret, channel = autoretry_method()
2018-09-11 11:24:49.116 864743 ERROR oslo_messaging.notify.messaging File "/usr/lib/python2.7/site-packages/kombu/connection.py", line 494, in _ensured
2018-09-11 11:24:49.116 864743 ERROR oslo_messaging.notify.messaging return fun(*args, **kwargs)
2018-09-11 11:24:49.116 864743 ERROR oslo_messaging.notify.messaging File "/usr/lib/python2.7/site-packages/kombu/connection.py", line 570, in __call__
2018-09-11 11:24:49.116 864743 ERROR oslo_messaging.notify.messaging return fun(*args, channel=channels[0], **kwargs), channels[0]
2018-09-11 11:24:49.116 864743 ERROR oslo_messaging.notify.messaging File "/usr/lib/python2.7/site-packages/oslo_messaging/_drivers/impl_rabbit.py", line 796, in execute_method
2018-09-11 11:24:49.116 864743 ERROR oslo_messaging.notify.messaging method()
2018-09-11 11:24:49.116 864743 ERROR oslo_messaging.notify.messaging File "/usr/lib/python2.7/site-packages/oslo_messaging/_drivers/impl_rabbit.py", line 1229, in _publish_and_creates_default_queue
2018-09-11 11:24:49.116 864743 ERROR oslo_messaging.notify.messaging self._publish(exchange, msg, routing_key=routing_key, timeout=timeout)
2018-09-11 11:24:49.116 864743 ERROR oslo_messaging.notify.messaging File "/usr/lib/python2.7/site-packages/oslo_messaging/_drivers/impl_rabbit.py", line 1193, in _publish
2018-09-11 11:24:49.116 864743 ERROR oslo_messaging.notify.messaging compression=self.kombu_compression)
2018-09-11 11:24:49.116 864743 ERROR oslo_messaging.notify.messaging File "/usr/lib/python2.7/site-packages/kombu/messaging.py", line 169, in publish
2018-09-11 11:24:49.116 864743 ERROR oslo_messaging.notify.messaging compression, headers)
2018-09-11 11:24:49.116 864743 ERROR oslo_messaging.notify.messaging File "/usr/lib/python2.7/site-packages/kombu/messaging.py", line 252, in _prepare
2018-09-11 11:24:49.116 864743 ERROR oslo_messaging.notify.messaging body) = dumps(body, serializer=serializer)
2018-09-11 11:24:49.116 864743 ERROR oslo_messaging.notify.messaging File "/usr/lib/python2.7/site-packages/kombu/serialization.py", line 221, in dumps
2018-09-11 11:24:49.116 864743 ERROR oslo_messaging.notify.messaging payload = encoder(data)
2018-09-11 11:24:49.116 864743 ERROR oslo_messaging.notify.messaging File "/usr/lib64/python2.7/contextlib.py", line 35, in __exit__
2018-09-11 11:24:49.116 864743 ERROR oslo_messaging.notify.messaging self.gen.throw(type, value, traceback)
2018-09-11 11:24:49.116 864743 ERROR oslo_messaging.notify.messaging File "/usr/lib/python2.7/site-packages/kombu/serialization.py", line 54, in _reraise_errors
2018-09-11 11:24:49.116 864743 ERROR oslo_messaging.notify.messaging reraise(wrapper, wrapper(exc), sys.exc_info()[2])
2018-09-11 11:24:49.116 864743 ERROR oslo_messaging.notify.messaging File "/usr/lib/python2.7/site-packages/kombu/serialization.py", line 50, in _reraise_errors
2018-09-11 11:24:49.116 864743 ERROR oslo_messaging.notify.messaging yield
2018-09-11 11:24:49.116 864743 ERROR oslo_messaging.notify.messaging File "/usr/lib/python2.7/site-packages/kombu/serialization.py", line 221, in dumps
2018-09-11 11:24:49.116 864743 ERROR oslo_messaging.notify.messaging payload = encoder(data)
2018-09-11 11:24:49.116 864743 ERROR oslo_messaging.notify.messaging File "/usr/lib/python2.7/site-packages/kombu/utils/json.py", line 72, in dumps
2018-09-11 11:24:49.116 864743 ERROR oslo_messaging.notify.messaging **dict(default_kwargs, **kwargs))
2018-09-11 11:24:49.116 864743 ERROR oslo_messaging.notify.messaging File "/usr/lib64/python2.7/site-packages/simplejson/__init__.py", line 382, in dumps
2018-09-11 11:24:49.116 864743 ERROR oslo_messaging.notify.messaging **kw).encode(obj)
2018-09-11 11:24:49.116 864743 ERROR oslo_messaging.notify.messaging File "/usr/lib64/python2.7/site-packages/simplejson/encoder.py", line 269, in encode
2018-09-11 11:24:49.116 864743 ERROR oslo_messaging.notify.messaging chunks = self.iterencode(o, _one_shot=True)
2018-09-11 11:24:49.116 864743 ERROR oslo_messaging.notify.messaging File "/usr/lib64/python2.7/site-packages/simplejson/encoder.py", line 348, in iterencode
2018-09-11 11:24:49.116 864743 ERROR oslo_messaging.notify.messaging return _iterencode(o, 0)
2018-09-11 11:24:49.116 864743 ERROR oslo_messaging.notify.messaging File "/usr/lib/python2.7/site-packages/kombu/utils/json.py", line 62, in default
2018-09-11 11:24:49.116 864743 ERROR oslo_messaging.notify.messaging return super(JSONEncoder, self).default(o)
2018-09-11 11:24:49.116 864743 ERROR oslo_messaging.notify.messaging File "/usr/lib64/python2.7/site-packages/simplejson/encoder.py", line 246, in default
2018-09-11 11:24:49.116 864743 ERROR oslo_messaging.notify.messaging raise TypeError(repr(o) + " is not JSON serializable")
2018-09-11 11:24:49.116 864743 ERROR oslo_messaging.notify.messaging EncodeError: Trunk(admin_state_up=True,created_at=2018-09-11T11:24:49Z,description='',id=73835d1f-c9c3-435a-8f7e-b98eaa7f6873,name='trunk0',port_id=9f5b9665-d1a7-4d07-ac7d-da77ba43b371,project_id='11156cbc56b848ef94a84eece8e09acd',revision_number=0,status='DOWN',sub_ports=[SubPort],updated_at=2018-09-11T11:24:49Z) is not JSON serializable
