is: {'code': 500, 'created': '2026-05-18T16:46:56Z', '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'}
2026-05-18 16:52:22,685 - INFO - Deleted policy ctest-policy-allow-all-89479340
2026-05-18 16:52:22,685 - INFO - Deleting VN ctest-vn-66571271
2026-05-18 16:52:22,810 - DEBUG - Response for deleting network ()
2026-05-18 16:52:22,810 - DEBUG - Requesting: http://10.0.0.249:8082/routing-instance/33fb7987-cbdc-4384-97ae-62a764ab4cf0
2026-05-18 16:52:22,840 - DEBUG - Response Code: 404
2026-05-18 16:52:22,841 - DEBUG - Requesting: http://10.0.0.249:8082/domains
2026-05-18 16:52:22,847 - DEBUG - Requesting: http://10.0.0.249:8082/domain/491448e1-1545-4d03-8de3-08bc26108cb1
2026-05-18 16:52:22,860 - DEBUG - Requesting: http://10.0.0.249:8082/project/96a0e209-c241-46cf-85c5-cdd3cddff7a3
2026-05-18 16:52:22,931 - INFO - Validated that VN ctest-vn-66571271 is not found in API Server
2026-05-18 16:52:22,943 - DEBUG - VN ctest-vn-66571271 is not present in Agent 10.0.0.249
2026-05-18 16:52:22,943 - INFO - Validated that VN ctest-vn-66571271 is not in any agent
2026-05-18 16:52:22,957 - DEBUG - Control-node config DB still has VN ctest-vn-66571271
2026-05-18 16:52:27,970 - INFO - Validated that Routing instances and Config db in Control-nodes does not have VN ctest-vn-66571271 info
2026-05-18 16:52:27,970 - INFO - Deleting VN ctest-vn-16653417
2026-05-18 16:52:28,080 - DEBUG - Response for deleting network ()
2026-05-18 16:52:28,080 - DEBUG - Requesting: http://10.0.0.249:8082/routing-instance/76d38d03-d859-4ce4-a4ca-d70d99058bd9
2026-05-18 16:52:28,085 - DEBUG - Response Code: 404
2026-05-18 16:52:28,085 - DEBUG - Requesting: http://10.0.0.249:8082/domains
2026-05-18 16:52:28,091 - DEBUG - Requesting: http://10.0.0.249:8082/domain/491448e1-1545-4d03-8de3-08bc26108cb1
2026-05-18 16:52:28,145 - DEBUG - Requesting: http://10.0.0.249:8082/project/96a0e209-c241-46cf-85c5-cdd3cddff7a3
2026-05-18 16:52:28,213 - INFO - Validated that VN ctest-vn-16653417 is not found in API Server
2026-05-18 16:52:28,223 - DEBUG - VN ctest-vn-16653417 is not present in Agent 10.0.0.249
2026-05-18 16:52:28,223 - INFO - Validated that VN ctest-vn-16653417 is not in any agent
2026-05-18 16:52:28,238 - INFO - Validated that Routing instances and Config db in Control-nodes does not have VN ctest-vn-16653417 info
2026-05-18 16:52:28,487 - ERROR - Traceback (most recent call last):
File "/contrail-test/tcutils/wrappers.py", line 80, in wrapper
result = function(self, *args, **kwargs)
File "/contrail-test/scripts/policy/test_policy_basic.py", line 118, in test_basic_policy_allow_deny
assert vm1_fixture.ping_with_certainty(vm2_fixture.vm_ip), (
File "/contrail-test/fixtures/vm_test.py", line 354, in vm_ip
assert self.verify_vm_launched()
AssertionError
2026-05-18 16:52:28,494 - DEBUG - No XMPP flaps were noticed during the test
2026-05-18 16:52:28,494 - INFO -
2026-05-18 16:52:28,494 - INFO - END TEST : test_basic_policy_allow_deny : FAILED[0:05:38]
2026-05-18 16:52:28,494 - INFO - --------------------------------------------------------------------------------
2026-05-18 16:52:29,235 - INFO - Deleted project: ctest-TestBasicPolicy-68259516, ID : 96a0e209-c241-46cf-85c5-cdd3cddff7a3