The CI sometime fails with:
Apr 08 10:37:49.180614 ubuntu-bionic-limestone-regionone-0004890468 nova-compute[27553]: ERROR oslo_messaging.rpc.server [None req-a96f63f9-4f94-4e87-9a2c-3e86080d0112 tempest-AttachInterfacesTestJSON-310502395 tempest-AttachInterfacesTestJSON-310502395] Exception during message handling: NetworkAmbiguous: Multiple possible networks found, use a Network ID to be more specific.
Apr 08 10:37:49.180614 ubuntu-bionic-limestone-regionone-0004890468 nova-compute[27553]: ERROR oslo_messaging.rpc.server Traceback (most recent call last):
Apr 08 10:37:49.180614 ubuntu-bionic-limestone-regionone-0004890468 nova-compute[27553]: ERROR oslo_messaging.rpc.server File "/usr/local/lib/python2.7/dist-packages/oslo_messaging/rpc/server.py", line 166, in _process_incoming
Apr 08 10:37:49.180614 ubuntu-bionic-limestone-regionone-0004890468 nova-compute[27553]: ERROR oslo_messaging.rpc.server res = self.dispatcher.dispatch(message)
Apr 08 10:37:49.180614 ubuntu-bionic-limestone-regionone-0004890468 nova-compute[27553]: ERROR oslo_messaging.rpc.server File "/usr/local/lib/python2.7/dist-packages/oslo_messaging/rpc/dispatcher.py", line 265, in dispatch
Apr 08 10:37:49.180614 ubuntu-bionic-limestone-regionone-0004890468 nova-compute[27553]: ERROR oslo_messaging.rpc.server return self._do_dispatch(endpoint, method, ctxt, args)
Apr 08 10:37:49.180614 ubuntu-bionic-limestone-regionone-0004890468 nova-compute[27553]: ERROR oslo_messaging.rpc.server File "/usr/local/lib/python2.7/dist-packages/oslo_messaging/rpc/dispatcher.py", line 194, in _do_dispatch
Apr 08 10:37:49.180614 ubuntu-bionic-limestone-regionone-0004890468 nova-compute[27553]: ERROR oslo_messaging.rpc.server result = func(ctxt, **new_args)
Apr 08 10:37:49.180614 ubuntu-bionic-limestone-regionone-0004890468 nova-compute[27553]: ERROR oslo_messaging.rpc.server File "/opt/stack/new/nova/nova/exception_wrapper.py", line 79, in wrapped
Apr 08 10:37:49.180614 ubuntu-bionic-limestone-regionone-0004890468 nova-compute[27553]: ERROR oslo_messaging.rpc.server function_name, call_dict, binary, tb)
Apr 08 10:37:49.180614 ubuntu-bionic-limestone-regionone-0004890468 nova-compute[27553]: ERROR oslo_messaging.rpc.server File "/usr/local/lib/python2.7/dist-packages/oslo_utils/excutils.py", line 220, in __exit__
Apr 08 10:37:49.180614 ubuntu-bionic-limestone-regionone-0004890468 nova-compute[27553]: ERROR oslo_messaging.rpc.server self.force_reraise()
Apr 08 10:37:49.180614 ubuntu-bionic-limestone-regionone-0004890468 nova-compute[27553]: ERROR oslo_messaging.rpc.server File "/usr/local/lib/python2.7/dist-packages/oslo_utils/excutils.py", line 196, in force_reraise
Apr 08 10:37:49.180614 ubuntu-bionic-limestone-regionone-0004890468 nova-compute[27553]: ERROR oslo_messaging.rpc.server six.reraise(self.type_, self.value, self.tb)
Apr 08 10:37:49.180614 ubuntu-bionic-limestone-regionone-0004890468 nova-compute[27553]: ERROR oslo_messaging.rpc.server File "/opt/stack/new/nova/nova/exception_wrapper.py", line 69, in wrapped
Apr 08 10:37:49.180614 ubuntu-bionic-limestone-regionone-0004890468 nova-compute[27553]: ERROR oslo_messaging.rpc.server return f(self, context, *args, **kw)
Apr 08 10:37:49.180614 ubuntu-bionic-limestone-regionone-0004890468 nova-compute[27553]: ERROR oslo_messaging.rpc.server File "/opt/stack/new/nova/nova/compute/utils.py", line 1323, in decorated_function
Apr 08 10:37:49.180614 ubuntu-bionic-limestone-regionone-0004890468 nova-compute[27553]: ERROR oslo_messaging.rpc.server return function(self, context, *args, **kwargs)
Apr 08 10:37:49.180614 ubuntu-bionic-limestone-regionone-0004890468 nova-compute[27553]: ERROR oslo_messaging.rpc.server File "/opt/stack/new/nova/nova/compute/manager.py", line 213, in decorated_function
Apr 08 10:37:49.180614 ubuntu-bionic-limestone-regionone-0004890468 nova-compute[27553]: ERROR oslo_messaging.rpc.server kwargs['instance'], e, sys.exc_info())
Apr 08 10:37:49.180614 ubuntu-bionic-limestone-regionone-0004890468 nova-compute[27553]: ERROR oslo_messaging.rpc.server File "/usr/local/lib/python2.7/dist-packages/oslo_utils/excutils.py", line 220, in __exit__
Apr 08 10:37:49.180614 ubuntu-bionic-limestone-regionone-0004890468 nova-compute[27553]: ERROR oslo_messaging.rpc.server self.force_reraise()
Apr 08 10:37:49.180614 ubuntu-bionic-limestone-regionone-0004890468 nova-compute[27553]: ERROR oslo_messaging.rpc.server File "/usr/local/lib/python2.7/dist-packages/oslo_utils/excutils.py", line 196, in force_reraise
Apr 08 10:37:49.180614 ubuntu-bionic-limestone-regionone-0004890468 nova-compute[27553]: ERROR oslo_messaging.rpc.server six.reraise(self.type_, self.value, self.tb)
Apr 08 10:37:49.180614 ubuntu-bionic-limestone-regionone-0004890468 nova-compute[27553]: ERROR oslo_messaging.rpc.server File "/opt/stack/new/nova/nova/compute/manager.py", line 201, in decorated_function
Apr 08 10:37:49.180614 ubuntu-bionic-limestone-regionone-0004890468 nova-compute[27553]: ERROR oslo_messaging.rpc.server return function(self, context, *args, **kwargs)
Apr 08 10:37:49.180614 ubuntu-bionic-limestone-regionone-0004890468 nova-compute[27553]: ERROR oslo_messaging.rpc.server File "/opt/stack/new/nova/nova/compute/manager.py", line 6101, in attach_interface
Apr 08 10:37:49.180614 ubuntu-bionic-limestone-regionone-0004890468 nova-compute[27553]: ERROR oslo_messaging.rpc.server bind_host_id=bind_host_id, tag=tag)
Apr 08 10:37:49.180614 ubuntu-bionic-limestone-regionone-0004890468 nova-compute[27553]: ERROR oslo_messaging.rpc.server File "/opt/stack/new/nova/nova/network/neutronv2/api.py", line 1697, in allocate_port_for_instance
Apr 08 10:37:49.180614 ubuntu-bionic-limestone-regionone-0004890468 nova-compute[27553]: ERROR oslo_messaging.rpc.server bind_host_id=bind_host_id, attach=True)
Apr 08 10:37:49.180614 ubuntu-bionic-limestone-regionone-0004890468 nova-compute[27553]: ERROR oslo_messaging.rpc.server File "/opt/stack/new/nova/nova/network/neutronv2/api.py", line 1067, in allocate_for_instance
Apr 08 10:37:49.180614 ubuntu-bionic-limestone-regionone-0004890468 nova-compute[27553]: ERROR oslo_messaging.rpc.server context, instance, neutron, requested_networks, ordered_networks)
Apr 08 10:37:49.180614 ubuntu-bionic-limestone-regionone-0004890468 nova-compute[27553]: ERROR oslo_messaging.rpc.server File "/opt/stack/new/nova/nova/network/neutronv2/api.py", line 940, in _validate_requested_network_ids
Apr 08 10:37:49.180614 ubuntu-bionic-limestone-regionone-0004890468 nova-compute[27553]: ERROR oslo_messaging.rpc.server raise exception.NetworkAmbiguous(msg)
Apr 08 10:37:49.180614 ubuntu-bionic-limestone-regionone-0004890468 nova-compute[27553]: ERROR oslo_messaging.rpc.server NetworkAmbiguous: Multiple possible networks found, use a Network ID to be more specific.
Apr 08 10:37:49.180614 ubuntu-bionic-limestone-regionone-0004890468 nova-compute[27553]: ERROR oslo_messaging.rpc.server
Apr 08 10:40:48.053254 ubuntu-bionic-limestone-regionone-0004890468 nova-compute[27553]: ERROR nova.compute.manager [None req-6c5ef8e1-86c2-4738-a2b0-69cf21b37062 tempest-ServerDiskConfigTestJSON-940421722 tempest-ServerDiskConfigTestJSON-940421722] [instance: 3d3a8bd4-9e84-4aaa-8543-388ef063ed96] Instance failed to spawn: NotFound: not found
Increasing level to high since it's a CI issue and we should fix it soon as possible.