运行OpenStack Newton，全新安装，在尝试启动实例时，在计算节点上（在nova-compute.log中）获取此信息：
2017-04-04 19:28:47.546 31726 ERROR nova.compute.manager [req-af37e2ee-0ef9-4d4e-b3ce-d7a1bf27a780 - - - - -] [instance: 6ecaf72c-88bc-4f26-8907-dc19d7924327] An error occurred while refreshing the network cache.
2017-04-04 19:28:47.546 31726 ERROR nova.compute.manager [instance: 6ecaf72c-88bc-4f26-8907-dc19d7924327] Traceback (most recent call last):
2017-04-04 19:28:47.546 31726 ERROR nova.compute.manager [instance: 6ecaf72c-88bc-4f26-8907-dc19d7924327] File "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 5766, in _heal_instance_info_cache
2017-04-04 19:28:47.546 31726 ERROR nova.compute.manager [instance: 6ecaf72c-88bc-4f26-8907-dc19d7924327] self.network_api.get_instance_nw_info(context, instance)
2017-04-04 19:28:47.546 31726 ERROR nova.compute.manager [instance: 6ecaf72c-88bc-4f26-8907-dc19d7924327] File "/usr/lib/python2.7/dist-packages/nova/network/api.py", line 369, in get_instance_nw_info
2017-04-04 19:28:47.546 31726 ERROR nova.compute.manager [instance: 6ecaf72c-88bc-4f26-8907-dc19d7924327] **kwargs)
2017-04-04 19:28:47.546 31726 ERROR nova.compute.manager [instance: 6ecaf72c-88bc-4f26-8907-dc19d7924327] File "/usr/lib/python2.7/dist-packages/nova/network/base_api.py", line 249, in get_instance_nw_info
2017-04-04 19:28:47.546 31726 ERROR nova.compute.manager [instance: 6ecaf72c-88bc-4f26-8907-dc19d7924327] result = self._get_instance_nw_info(context, instance, **kwargs)
2017-04-04 19:28:47.546 31726 ERROR nova.compute.manager [instance: 6ecaf72c-88bc-4f26-8907-dc19d7924327] File "/usr/lib/python2.7/dist-packages/nova/network/api.py", line 378, in _get_instance_nw_info
2017-04-04 19:28:47.546 31726 ERROR nova.compute.manager [instance: 6ecaf72c-88bc-4f26-8907-dc19d7924327] nw_info = self.network_rpcapi.get_instance_nw_info(context, **args)
2017-04-04 19:28:47.546 31726 ERROR nova.compute.manager [instance: 6ecaf72c-88bc-4f26-8907-dc19d7924327] File "/usr/lib/python2.7/dist-packages/nova/network/rpcapi.py", line 211, in get_instance_nw_info
2017-04-04 19:28:47.546 31726 ERROR nova.compute.manager [instance: 6ecaf72c-88bc-4f26-8907-dc19d7924327] host=host, project_id=project_id)
2017-04-04 19:28:47.546 31726 ERROR nova.compute.manager [instance: 6ecaf72c-88bc-4f26-8907-dc19d7924327] File "/usr/lib/python2.7/dist-packages/oslo_messaging/rpc/client.py", line 169, in call
2017-04-04 19:28:47.546 31726 ERROR nova.compute.manager [instance: 6ecaf72c-88bc-4f26-8907-dc19d7924327] retry=self.retry)
2017-04-04 19:28:47.546 31726 ERROR nova.compute.manager [instance: 6ecaf72c-88bc-4f26-8907-dc19d7924327] File "/usr/lib/python2.7/dist-packages/oslo_messaging/transport.py", line 97, in _send
2017-04-04 19:28:47.546 31726 ERROR nova.compute.manager [instance: 6ecaf72c-88bc-4f26-8907-dc19d7924327] timeout=timeout, retry=retry)
2017-04-04 19:28:47.546 31726 ERROR nova.compute.manager [instance: 6ecaf72c-88bc-4f26-8907-dc19d7924327] File "/usr/lib/python2.7/dist-packages/oslo_messaging/_drivers/amqpdriver.py", line 464, in send
2017-04-04 19:28:47.546 31726 ERROR nova.compute.manager [instance: 6ecaf72c-88bc-4f26-8907-dc19d7924327] retry=retry)
2017-04-04 19:28:47.546 31726 ERROR nova.compute.manager [instance: 6ecaf72c-88bc-4f26-8907-dc19d7924327] File "/usr/lib/python2.7/dist-packages/oslo_messaging/_drivers/amqpdriver.py", line 453, in _send
2017-04-04 19:28:47.546 31726 ERROR nova.compute.manager [instance: 6ecaf72c-88bc-4f26-8907-dc19d7924327] result = self._waiter.wait(msg_id, timeout)
2017-04-04 19:28:47.546 31726 ERROR nova.compute.manager [instance: 6ecaf72c-88bc-4f26-8907-dc19d7924327] File "/usr/lib/python2.7/dist-packages/oslo_messaging/_drivers/amqpdriver.py", line 336, in wait
2017-04-04 19:28:47.546 31726 ERROR nova.compute.manager [instance: 6ecaf72c-88bc-4f26-8907-dc19d7924327] message = self.waiters.get(msg_id, timeout=timeout)
2017-04-04 19:28:47.546 31726 ERROR nova.compute.manager [instance: 6ecaf72c-88bc-4f26-8907-dc19d7924327] File "/usr/lib/python2.7/dist-packages/oslo_messaging/_drivers/amqpdriver.py", line 238, in get
2017-04-04 19:28:47.546 31726 ERROR nova.compute.manager [instance: 6ecaf72c-88bc-4f26-8907-dc19d7924327] 'to message ID %s' % msg_id)
2017-04-04 19:28:47.546 31726 ERROR nova.compute.manager [instance: 6ecaf72c-88bc-4f26-8907-dc19d7924327] MessagingTimeout: Timed out waiting for a reply to message ID bb7d1a5d89c8469aa1243f9102656d3
这仅适用于交换'nova'主题'网络'的消息：
Apr 4 19:26:47 ip-192-168-99-11 nova-compute[31726]: 2017-04-04 19:26:47.544 31726 DEBUG oslo_messaging._drivers.amqpdriver [req-af37e2ee-0ef9-4d4e-b3ce-d7a1bf27a780 - - - - -] CALL msg_id: bb7d1a5d89c8469aa1243f9102656d3f exchange 'nova' topic 'network' _send /usr/lib/python2.7/dist-packages/oslo_messaging/_drivers/amqpdriver.py:448
（例如，关于“指挥”主题的消息经过罚款）。
我注意到在RabbitMQ中有一个导体队列（带有导体路由密钥）但没有网络队列（对应https://ilearnstack.com/2013/04/24/messaging-in-openstack-using-rabbitmq/）
计算节点和控制器（Rabbit运行的地方）之间的连接很好。
尝试打开兔子追踪（http://www.rabbitmq.com/firehose.html），我看到所有消息但是有问题的消息。
任何指针？