The above is a description of an error in a Python program. Here is
the original traceback:
Traceback (most recent call last):
File "/contrail-test/tcutils/wrappers.py", line 80, in wrapper
result = function(self, *args, **kwargs)
File "/contrail-test/serial_scripts/bgpaas/test_bgpaas_zone.py", line 147, in test_bgp_control_node_zones_from_single_vnf
assert self.basic_control_node_zone_setup('both-zones')
File "/contrail-test/serial_scripts/bgpaas/test_bgpaas_zone.py", line 33, in basic_control_node_zone_setup
self.check_vms_booted(self.vms + [self.client_vm])
File "/contrail-test/common/base.py", line 721, in check_vms_booted
vm_fixture.cleanUp()
File "/contrail-test/fixtures/vm_test.py", line 2052, in cleanUp
self.delete()
File "/contrail-test/fixtures/vm_test.py", line 2082, in delete
self.orch.delete_vm(vm_obj, force=force)
File "/contrail-test/fixtures/openstack.py", line 121, in delete_vm
return self.nova_h.delete_vm(vm_obj, **kwargs)
File "/contrail-test/fixtures/nova_test.py", line 765, in delete_vm
self.get_nova_host_of_vm(vm_obj)
File "/contrail-test/fixtures/nova_test.py", line 736, in get_nova_host_of_vm
assert False, 'Fault seen in nova show %s is: %s' % (
AssertionError: Fault seen in nova show 493596f8-43de-446b-95a6-5cb3f91c1008 is: {'code': 500, 'created': '2026-06-04T20:05:38Z', 'message': 'No valid host was found. ', 'details': 'Traceback (most recent call last):\n File "/var/lib/kolla/venv/lib/python3.6/site-packages/nova/conductor/manager.py", line 1581, in schedule_and_build_instances\n instance_uuids, return_alternates=True)\n File "/var/lib/kolla/venv/lib/python3.6/site-packages/nova/conductor/manager.py", line 942, in _schedule_instances\n return_alternates=return_alternates)\n File "/var/lib/kolla/venv/lib/python3.6/site-packages/nova/scheduler/client/query.py", line 42, in select_destinations\n instance_uuids, return_objects, return_alternates)\n File "/var/lib/kolla/venv/lib/python3.6/site-packages/nova/scheduler/rpcapi.py", line 160, in select_destinations\n return cctxt.call(ctxt, \'select_destinations\', **msg_args)\n File "/var/lib/kolla/venv/lib/python3.6/site-packages/oslo_messaging/rpc/client.py", line 192, in call\n retry=self.retry, transport_options=self.transport_options)\n File "/var/lib/kolla/venv/lib/python3.6/site-packages/oslo_messaging/transport.py", line 128, in _send\n transport_options=transport_options)\n File "/var/lib/kolla/venv/lib/python3.6/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 691, in send\n transport_options=transport_options)\n File "/var/lib/kolla/venv/lib/python3.6/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 681, in _send\n raise result\nnova.exception_Remote.NoValidHost_Remote: No valid host was found. \nTraceback (most recent call last):\n\n File "/var/lib/kolla/venv/lib/python3.6/site-packages/oslo_messaging/rpc/server.py", line 241, in inner\n return func(*args, **kwargs)\n\n File "/var/lib/kolla/venv/lib/python3.6/site-packages/nova/scheduler/manager.py", line 209, in select_destinations\n raise exception.NoValidHost(reason="")\n\nnova.exception.NoValidHost: No valid host was found. \n\n'}
2026-06-04 20:07:37,608 - DEBUG - Skipping xmpp flap check
2026-06-04 20:07:37,608 - INFO -
2026-06-04 20:07:37,609 - INFO - END TEST : test_bgp_control_node_zones_from_single_vnf : FAILED[0:02:06]
2026-06-04 20:07:37,609 - INFO - --------------------------------------------------------------------------------
2026-06-04 20:07:38,349 - INFO - Deleted project: ctest-TestBGPaasZone-98256530, ID : eb9f6732-704a-4e9b-93a8-4f28e2739072