is: {'code': 500, 'created': '2026-01-29T02:20:11Z', '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'}
2026-01-29 02:20:11,819 - INFO - Deleting VN ctest-vn2_metadata-44770209
2026-01-29 02:20:12,162 - 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/vm_regression/test_vm_basic.py", line 290, in test_generic_link_local_service
compute_user = self.inputs.host_data[vm1_fixture.vm_node_ip]['username']
File "/contrail-test/fixtures/vm_test.py", line 386, in vm_node_ip
self.get_host_of_vm(refresh=True))
File "/contrail-test/fixtures/vm_test.py", line 400, in get_host_of_vm
assert self.wait_till_vm_is_active()
AssertionError
2026-01-29 02:20:12,167 - INFO -
2026-01-29 02:20:12,167 - INFO - END TEST : test_generic_link_local_service : FAILED[0:00:03]
2026-01-29 02:20:12,167 - INFO - --------------------------------------------------------------------------------
2026-01-29 02:20:12,170 - INFO - ================================================================================
2026-01-29 02:20:12,170 - INFO - STARTING TEST : test_metadata_service
2026-01-29 02:20:12,170 - INFO - TEST DESCRIPTION :
Description: Test to validate metadata service on VM creation.
1.Verify from global-vrouter-config if metadata configures or not - fails otherwise
2.Create a shell script which writes 'hello world ' in a file in /tmp and save the script on the nova api node
3.Create a vm with userdata pointing to that script - script should get executed during vm boot up
4.Go to the vm and verify if the file with 'hello world ' written saved in /tmp of the vm - fails otherwise
Maintainer: sandipd@juniper.net
2026-01-29 02:20:12,454 - INFO - Initial checks done. Running the testcase now
2026-01-29 02:20:12,454 - INFO -
2026-01-29 02:20:13,126 - INFO - Created VN ctest-vn-20136678
2026-01-29 02:20:14,484 - INFO - VM ([]) created on node: (cn-jenkins-deploy-platform-ansible-os-5111-1), Zone: (nova:cn-jenkins-deploy-platform-ansible-os-5111-1)
2026-01-29 02:20:14,484 - INFO - Waiting for VM ctest-TestBasicVMVN-68614796-85615734 to be up..
2026-01-29 02:20:14,556 - ERROR - VM in error state.
2026-01-29 02:20:14,556 - ERROR - VM is not in ACTIVE state
2026-01-29 02:20:14,638 - ERROR - Fatal Nova Exception while getting VM detail
2026-01-29 02:20:14,639 - INFO - Skip interface_detach for VM ctest-TestBasicVMVN-68614796-85615734 in state ERROR
2026-01-29 02:20:14,639 - INFO - Deleting VM ctest-TestBasicVMVN-68614796-85615734
2026-01-29 02:20:14,639 - ERROR - VM ctest-TestBasicVMVN-68614796-85615734 has failed to come up
2026-01-29 02:20:14,639 - ERROR - Fault seen in nova show is: {'code': 500, 'created': '2026-01-29T02:20:14Z', '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'}
2026-01-29 02:20:14,639 - INFO - Deleting VN ctest-vn-20136678
2026-01-29 02:20:14,981 - ERROR - AssertionError
Python 3.9.21: /usr/bin/python3
Thu Jan 29 02:20:14 2026
A problem occurred in a Python script. Here is the sequence of
function calls leading up to the error, in the order they occurred.
/contrail-test/tcutils/wrappers.py in wrapper(self=, *args=(), **kwargs={})
78 log.info('Initial checks done. Running the testcase now')
79 log.info('')
80 result = function(self, *args, **kwargs)
81 if self.inputs.upgrade:
82 pid = os.getpid()
result = None
function =
self =
args = ()
kwargs = {}
/contrail-test/scripts/vm_regression/test_vm_basic.py in test_metadata_service(self=)
55 image_name='cirros',
56 userdata='/tmp/metadata_script.txt')
57 assert vm1_fixture.wait_till_vm_is_up()
58
59 cmd = 'cat /tmp/output.txt'
vm1_fixture =
vm1_fixture.wait_till_vm_is_up = >
AssertionError:
__cause__ = None
__class__ =
__context__ = None
__delattr__ =
__dict__ = {}
__dir__ =
__doc__ = 'Assertion failed.'
__eq__ =
__format__ =
__ge__ =
__getattribute__ =
__gt__ =
__hash__ =
__init__ =
__init_subclass__ =
__le__ =
__lt__ =
__ne__ =
__new__ =
__reduce__ =
__reduce_ex__ =
__repr__ =
__setattr__ =
__setstate__ =
__sizeof__ =
__str__ =
__subclasshook__ =
__suppress_context__ = False
__traceback__ =
args = ()
with_traceback =
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/scripts/vm_regression/test_vm_basic.py", line 57, in test_metadata_service
assert vm1_fixture.wait_till_vm_is_up()
AssertionError
2026-01-29 02:20:14,986 - INFO -
2026-01-29 02:20:14,987 - INFO - END TEST : test_metadata_service : FAILED[0:00:02]
2026-01-29 02:20:14,987 - INFO - --------------------------------------------------------------------------------
2026-01-29 02:20:14,990 - INFO - ================================================================================
2026-01-29 02:20:14,990 - INFO - STARTING TEST : test_ping_within_vn_two_vms_two_different_subnets
2026-01-29 02:20:14,990 - INFO - TEST DESCRIPTION :
Description: Validate Ping between 2 VMs in the same VN, 2 VMs in different VN
subnets.
Test steps:
1. Create 1 IPAM's.
2. Create 1 VN with 2 subnets and launch 2 VMs in them.
3. Ping between the VMs in the same VN should go thru fine.
4. Ping to the subnet broadcast and all-broadcast address.
Pass criteria: VM in the same subnet will respond to both the pings, while the VM in a different VN should respond only to the
all-broadcast address.
Maintainer : ganeshahv@juniper.net
2026-01-29 02:20:15,278 - INFO - Initial checks done. Running the testcase now
2026-01-29 02:20:15,278 - INFO -
2026-01-29 02:20:16,148 - INFO - Created VN ctest-vn-61961876
2026-01-29 02:20:17,222 - INFO - VM ([]) created on node: (cn-jenkins-deploy-platform-ansible-os-5111-1), Zone: (nova:cn-jenkins-deploy-platform-ansible-os-5111-1)
2026-01-29 02:20:17,719 - INFO - VM ([]) created on node: (cn-jenkins-deploy-platform-ansible-os-5111-1), Zone: (nova:cn-jenkins-deploy-platform-ansible-os-5111-1)
2026-01-29 02:20:18,920 - INFO - VM ([]) created on node: (cn-jenkins-deploy-platform-ansible-os-5111-1), Zone: (nova:cn-jenkins-deploy-platform-ansible-os-5111-1)
2026-01-29 02:20:19,024 - INFO - Verifications in API Server for IPAM: ctest-ipam-74666232 passed
2026-01-29 02:20:19,030 - INFO - Verifications in Control node for IPAM: ctest-ipam-74666232 passed
2026-01-29 02:20:19,184 - INFO - Verified VN network id 11 for VN 34031e65-ef52-443c-b169-b7c5c94e7c3e
2026-01-29 02:20:19,185 - INFO - Verifications in API Server for VN ctest-vn-61961876 passed
2026-01-29 02:20:19,229 - INFO - On all control nodes, Config, RI and RT verification for VN ctest-vn-61961876 passed
2026-01-29 02:20:19,680 - INFO - Validated that VN default-domain:ctest-TestBasicVMVN-68614796:ctest-vn-61961876 is found in opserver
2026-01-29 02:20:19,694 - INFO - Waiting for VM ctest-TestBasicVMVN-68614796-65718136 to be up..
2026-01-29 02:20:19,748 - ERROR - VM in error state.
2026-01-29 02:20:19,748 - ERROR - VM is not in ACTIVE state
2026-01-29 02:20:19,824 - ERROR - Fatal Nova Exception while getting VM detail
2026-01-29 02:20:19,825 - INFO - Skip interface_detach for VM ctest-TestBasicVMVN-68614796-05243269 in state BUILD
2026-01-29 02:20:19,825 - INFO - Deleting VM ctest-TestBasicVMVN-68614796-05243269
2026-01-29 02:20:19,825 - ERROR - VM ctest-TestBasicVMVN-68614796-05243269 has failed to come up
2026-01-29 02:20:19,825 - ERROR - Nova failed to get host of the VM
2026-01-29 02:20:19,983 - INFO - Skip interface_detach for VM ctest-TestBasicVMVN-68614796-97785928 in state BUILD
2026-01-29 02:20:19,983 - INFO - Deleting VM ctest-TestBasicVMVN-68614796-97785928
2026-01-29 02:20:19,984 - ERROR - VM ctest-TestBasicVMVN-68614796-97785928 has failed to come up
2026-01-29 02:20:19,984 - ERROR - Nova failed to get host of the VM
2026-01-29 02:20:20,137 - INFO - Skip interface_detach for VM ctest-TestBasicVMVN-68614796-65718136 in state ERROR
2026-01-29 02:20:20,137 - INFO - Deleting VM ctest-TestBasicVMVN-68614796-65718136
2026-01-29 02:20:20,137 - ERROR - VM ctest-TestBasicVMVN-68614796-65718136 has failed to come up
2026-01-29 02:20:20,137 - ERROR - Fault seen in nova show is: {'code': 500, 'created': '2026-01-29T02:20:17Z', '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'}
2026-01-29 02:20:20,137 - INFO - Deleting VN ctest-vn-61961876
2026-01-29 02:20:20,610 - INFO - Validated that VN ctest-vn-61961876 is not found in API Server
2026-01-29 02:20:20,620 - INFO - Validated that VN ctest-vn-61961876 is not in any agent
2026-01-29 02:20:20,632 - INFO - Validated that Routing instances and Config db in Control-nodes does not have VN ctest-vn-61961876 info
2026-01-29 02:20:20,709 - INFO - IPAM: ctest-ipam-74666232 is not found in API Server
2026-01-29 02:20:20,718 - INFO - IPAM:ctest-ipam-74666232 is not found in control node
2026-01-29 02:20:20,966 - ERROR - AssertionError
Python 3.9.21: /usr/bin/python3
Thu Jan 29 02:20:19 2026
A problem occurred in a Python script. Here is the sequence of
function calls leading up to the error, in the order they occurred.
/contrail-test/tcutils/wrappers.py in wrapper(self=, *args=(), **kwargs={})
78 log.info('Initial checks done. Running the testcase now')
79 log.info('')
80 result = function(self, *args, **kwargs)
81 if self.inputs.upgrade:
82 pid = os.getpid()
result = None
function =
self =
args = ()
kwargs = {}
/contrail-test/scripts/vm_regression/test_vm_basic.py in test_ping_within_vn_two_vms_two_different_subnets(self=)
145 assert ipam_obj.verify_on_setup()
146 assert vn1_fixture.verify_on_setup()
147 assert vm1.wait_till_vm_is_up()
148 assert vm2.wait_till_vm_is_up()
149 assert vm3.wait_till_vm_is_up()
vm1 =
vm1.wait_till_vm_is_up = >
AssertionError:
__cause__ = None
__class__ =
__context__ = None
__delattr__ =
__dict__ = {}
__dir__ =
__doc__ = 'Assertion failed.'
__eq__ =
__format__ =
__ge__ =
__getattribute__ =
__gt__ =
__hash__ =
__init__ =
__init_subclass__ =
__le__ =
__lt__ =
__ne__ =
__new__ =
__reduce__ =
__reduce_ex__ =
__repr__ =
__setattr__ =
__setstate__ =
__sizeof__ =
__str__ =
__subclasshook__ =
__suppress_context__ = False
__traceback__ =