+ exec nova-conductor --config-file /etc/nova/nova.conf
Modules with known eventlet monkey patching issues were imported prior to eventlet monkey patching: urllib3. This warning can usually be ignored if the caller is only importing and not executing nova code.
/var/lib/openstack/lib/python3.10/site-packages/nova/virt/__init__.py:18: UserWarning: pkg_resources is deprecated as an API. See https://setuptools.pypa.io/en/latest/pkg_resources.html. The pkg_resources package is slated for removal as early as 2025-11-30. Refrain from using this package or pin to Setuptools<81.
  __import__('pkg_resources').declare_namespace(__name__)
2026-05-08 18:53:40.988 1 INFO oslo_service.service [None req-a470cee0-128b-473d-af92-eae7ab5cd74c - - - - - -] Starting 2 workers
2026-05-08 18:53:40.999 7 INFO nova.service [-] Starting conductor node (version 26.3.1)
2026-05-08 18:53:41.000 8 INFO nova.service [-] Starting conductor node (version 26.3.1)
2026-05-08 18:53:41.005 1 WARNING oslo_config.cfg [None req-a470cee0-128b-473d-af92-eae7ab5cd74c - - - - - -] Deprecated: Option "api_servers" from group "glance" is deprecated for removal (
Support for image service configuration via standard keystoneauth1 Adapter
options was added in the 17.0.0 Queens release. The api_servers option was
retained temporarily to allow consumers time to cut over to a real load
balancing solution.
).  Its value may be silently ignored in the future.
2026-05-08 19:30:01.858 8 ERROR nova.conductor.manager [None req-17ccd14c-32bf-4496-945f-5cb261db123c 26a576447d0a4e2e86a9a8ceeef3149d 20d63697dc1443a4818e1f9d22ef4534 - - default default] Failed to schedule instances: nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
Traceback (most recent call last):

  File "/var/lib/openstack/lib/python3.10/site-packages/oslo_messaging/rpc/server.py", line 241, in inner
    return func(*args, **kwargs)

  File "/var/lib/openstack/lib/python3.10/site-packages/nova/scheduler/manager.py", line 209, in select_destinations
    raise exception.NoValidHost(reason="")

nova.exception.NoValidHost: No valid host was found.
2026-05-08 19:30:01.858 8 ERROR nova.conductor.manager Traceback (most recent call last):
2026-05-08 19:30:01.858 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/nova/conductor/manager.py", line 1587, in schedule_and_build_instances
2026-05-08 19:30:01.858 8 ERROR nova.conductor.manager     host_lists = self._schedule_instances(context, request_specs[0],
2026-05-08 19:30:01.858 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/nova/conductor/manager.py", line 940, in _schedule_instances
2026-05-08 19:30:01.858 8 ERROR nova.conductor.manager     host_lists = self.query_client.select_destinations(
2026-05-08 19:30:01.858 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/nova/scheduler/client/query.py", line 41, in select_destinations
2026-05-08 19:30:01.858 8 ERROR nova.conductor.manager     return self.scheduler_rpcapi.select_destinations(context, spec_obj,
2026-05-08 19:30:01.858 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/nova/scheduler/rpcapi.py", line 160, in select_destinations
2026-05-08 19:30:01.858 8 ERROR nova.conductor.manager     return cctxt.call(ctxt, 'select_destinations', **msg_args)
2026-05-08 19:30:01.858 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/oslo_messaging/rpc/client.py", line 189, in call
2026-05-08 19:30:01.858 8 ERROR nova.conductor.manager     result = self.transport._send(
2026-05-08 19:30:01.858 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/oslo_messaging/transport.py", line 123, in _send
2026-05-08 19:30:01.858 8 ERROR nova.conductor.manager     return self._driver.send(target, ctxt, message,
2026-05-08 19:30:01.858 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 689, in send
2026-05-08 19:30:01.858 8 ERROR nova.conductor.manager     return self._send(target, ctxt, message, wait_for_reply, timeout,
2026-05-08 19:30:01.858 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 681, in _send
2026-05-08 19:30:01.858 8 ERROR nova.conductor.manager     raise result
2026-05-08 19:30:01.858 8 ERROR nova.conductor.manager nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
2026-05-08 19:30:01.858 8 ERROR nova.conductor.manager Traceback (most recent call last):
2026-05-08 19:30:01.858 8 ERROR nova.conductor.manager 
2026-05-08 19:30:01.858 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/oslo_messaging/rpc/server.py", line 241, in inner
2026-05-08 19:30:01.858 8 ERROR nova.conductor.manager     return func(*args, **kwargs)
2026-05-08 19:30:01.858 8 ERROR nova.conductor.manager 
2026-05-08 19:30:01.858 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/nova/scheduler/manager.py", line 209, in select_destinations
2026-05-08 19:30:01.858 8 ERROR nova.conductor.manager     raise exception.NoValidHost(reason="")
2026-05-08 19:30:01.858 8 ERROR nova.conductor.manager 
2026-05-08 19:30:01.858 8 ERROR nova.conductor.manager nova.exception.NoValidHost: No valid host was found. 
2026-05-08 19:30:01.858 8 ERROR nova.conductor.manager 
2026-05-08 19:30:01.858 8 ERROR nova.conductor.manager 
/var/lib/openstack/lib/python3.10/site-packages/memcache.py:1303: SyntaxWarning: "is" with a literal. Did you mean "=="?
  if key is '':
/var/lib/openstack/lib/python3.10/site-packages/memcache.py:1304: SyntaxWarning: "is" with a literal. Did you mean "=="?
  if key_extra_len is 0:
2026-05-08 19:30:02.106 8 WARNING nova.scheduler.utils [None req-17ccd14c-32bf-4496-945f-5cb261db123c 26a576447d0a4e2e86a9a8ceeef3149d 20d63697dc1443a4818e1f9d22ef4534 - - default default] Failed to compute_task_build_instances: No valid host was found. 
Traceback (most recent call last):

  File "/var/lib/openstack/lib/python3.10/site-packages/oslo_messaging/rpc/server.py", line 241, in inner
    return func(*args, **kwargs)

  File "/var/lib/openstack/lib/python3.10/site-packages/nova/scheduler/manager.py", line 209, in select_destinations
    raise exception.NoValidHost(reason="")

nova.exception.NoValidHost: No valid host was found. 
: nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
2026-05-08 19:30:02.107 8 WARNING nova.scheduler.utils [None req-17ccd14c-32bf-4496-945f-5cb261db123c 26a576447d0a4e2e86a9a8ceeef3149d 20d63697dc1443a4818e1f9d22ef4534 - - default default] [instance: 5bcba0cc-0852-422d-a971-f9fba30ba088] Setting instance to ERROR state.: nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
2026-05-08 19:30:02.165 8 WARNING oslo_config.cfg [None req-17ccd14c-32bf-4496-945f-5cb261db123c 26a576447d0a4e2e86a9a8ceeef3149d 20d63697dc1443a4818e1f9d22ef4534 - - default default] Deprecated: Option "api_servers" from group "glance" is deprecated for removal (
Support for image service configuration via standard keystoneauth1 Adapter
options was added in the 17.0.0 Queens release. The api_servers option was
retained temporarily to allow consumers time to cut over to a real load
balancing solution.
).  Its value may be silently ignored in the future.: nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
2026-05-08 19:30:08.981 7 ERROR nova.conductor.manager [None req-077b341c-c719-47b6-9588-ab13a3c1f855 d8fc10b94e5445aca2c8f610ba24045d 1ecc88d37bbc4f04be07f162641f104e - - default default] Failed to schedule instances: nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
Traceback (most recent call last):

  File "/var/lib/openstack/lib/python3.10/site-packages/oslo_messaging/rpc/server.py", line 241, in inner
    return func(*args, **kwargs)

  File "/var/lib/openstack/lib/python3.10/site-packages/nova/scheduler/manager.py", line 209, in select_destinations
    raise exception.NoValidHost(reason="")

nova.exception.NoValidHost: No valid host was found.
2026-05-08 19:30:08.981 7 ERROR nova.conductor.manager Traceback (most recent call last):
2026-05-08 19:30:08.981 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/nova/conductor/manager.py", line 1587, in schedule_and_build_instances
2026-05-08 19:30:08.981 7 ERROR nova.conductor.manager     host_lists = self._schedule_instances(context, request_specs[0],
2026-05-08 19:30:08.981 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/nova/conductor/manager.py", line 940, in _schedule_instances
2026-05-08 19:30:08.981 7 ERROR nova.conductor.manager     host_lists = self.query_client.select_destinations(
2026-05-08 19:30:08.981 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/nova/scheduler/client/query.py", line 41, in select_destinations
2026-05-08 19:30:08.981 7 ERROR nova.conductor.manager     return self.scheduler_rpcapi.select_destinations(context, spec_obj,
2026-05-08 19:30:08.981 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/nova/scheduler/rpcapi.py", line 160, in select_destinations
2026-05-08 19:30:08.981 7 ERROR nova.conductor.manager     return cctxt.call(ctxt, 'select_destinations', **msg_args)
2026-05-08 19:30:08.981 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/oslo_messaging/rpc/client.py", line 189, in call
2026-05-08 19:30:08.981 7 ERROR nova.conductor.manager     result = self.transport._send(
2026-05-08 19:30:08.981 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/oslo_messaging/transport.py", line 123, in _send
2026-05-08 19:30:08.981 7 ERROR nova.conductor.manager     return self._driver.send(target, ctxt, message,
2026-05-08 19:30:08.981 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 689, in send
2026-05-08 19:30:08.981 7 ERROR nova.conductor.manager     return self._send(target, ctxt, message, wait_for_reply, timeout,
2026-05-08 19:30:08.981 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 681, in _send
2026-05-08 19:30:08.981 7 ERROR nova.conductor.manager     raise result
2026-05-08 19:30:08.981 7 ERROR nova.conductor.manager nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
2026-05-08 19:30:08.981 7 ERROR nova.conductor.manager Traceback (most recent call last):
2026-05-08 19:30:08.981 7 ERROR nova.conductor.manager 
2026-05-08 19:30:08.981 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/oslo_messaging/rpc/server.py", line 241, in inner
2026-05-08 19:30:08.981 7 ERROR nova.conductor.manager     return func(*args, **kwargs)
2026-05-08 19:30:08.981 7 ERROR nova.conductor.manager 
2026-05-08 19:30:08.981 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/nova/scheduler/manager.py", line 209, in select_destinations
2026-05-08 19:30:08.981 7 ERROR nova.conductor.manager     raise exception.NoValidHost(reason="")
2026-05-08 19:30:08.981 7 ERROR nova.conductor.manager 
2026-05-08 19:30:08.981 7 ERROR nova.conductor.manager nova.exception.NoValidHost: No valid host was found. 
2026-05-08 19:30:08.981 7 ERROR nova.conductor.manager 
2026-05-08 19:30:08.981 7 ERROR nova.conductor.manager 
/var/lib/openstack/lib/python3.10/site-packages/memcache.py:1303: SyntaxWarning: "is" with a literal. Did you mean "=="?
  if key is '':
/var/lib/openstack/lib/python3.10/site-packages/memcache.py:1304: SyntaxWarning: "is" with a literal. Did you mean "=="?
  if key_extra_len is 0:
2026-05-08 19:30:09.179 7 WARNING nova.scheduler.utils [None req-077b341c-c719-47b6-9588-ab13a3c1f855 d8fc10b94e5445aca2c8f610ba24045d 1ecc88d37bbc4f04be07f162641f104e - - default default] Failed to compute_task_build_instances: No valid host was found. 
Traceback (most recent call last):

  File "/var/lib/openstack/lib/python3.10/site-packages/oslo_messaging/rpc/server.py", line 241, in inner
    return func(*args, **kwargs)

  File "/var/lib/openstack/lib/python3.10/site-packages/nova/scheduler/manager.py", line 209, in select_destinations
    raise exception.NoValidHost(reason="")

nova.exception.NoValidHost: No valid host was found. 
: nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
2026-05-08 19:30:09.180 7 WARNING nova.scheduler.utils [None req-077b341c-c719-47b6-9588-ab13a3c1f855 d8fc10b94e5445aca2c8f610ba24045d 1ecc88d37bbc4f04be07f162641f104e - - default default] [instance: 332f2da4-46a9-4176-88df-2a5f5ad39aab] Setting instance to ERROR state.: nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
2026-05-08 19:30:09.227 7 WARNING oslo_config.cfg [None req-077b341c-c719-47b6-9588-ab13a3c1f855 d8fc10b94e5445aca2c8f610ba24045d 1ecc88d37bbc4f04be07f162641f104e - - default default] Deprecated: Option "api_servers" from group "glance" is deprecated for removal (
Support for image service configuration via standard keystoneauth1 Adapter
options was added in the 17.0.0 Queens release. The api_servers option was
retained temporarily to allow consumers time to cut over to a real load
balancing solution.
).  Its value may be silently ignored in the future.: nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
2026-05-08 19:30:17.500 8 ERROR nova.conductor.manager [None req-571a2436-0c44-4c33-8f6c-3727b27e823b 50cdd03d2313463e8f95ed5ac6ed6eaa d23145985e404c09a53ce987678705f6 - - default default] Failed to schedule instances: nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
Traceback (most recent call last):

  File "/var/lib/openstack/lib/python3.10/site-packages/oslo_messaging/rpc/server.py", line 241, in inner
    return func(*args, **kwargs)

  File "/var/lib/openstack/lib/python3.10/site-packages/nova/scheduler/manager.py", line 209, in select_destinations
    raise exception.NoValidHost(reason="")

nova.exception.NoValidHost: No valid host was found.
2026-05-08 19:30:17.500 8 ERROR nova.conductor.manager Traceback (most recent call last):
2026-05-08 19:30:17.500 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/nova/conductor/manager.py", line 1587, in schedule_and_build_instances
2026-05-08 19:30:17.500 8 ERROR nova.conductor.manager     host_lists = self._schedule_instances(context, request_specs[0],
2026-05-08 19:30:17.500 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/nova/conductor/manager.py", line 940, in _schedule_instances
2026-05-08 19:30:17.500 8 ERROR nova.conductor.manager     host_lists = self.query_client.select_destinations(
2026-05-08 19:30:17.500 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/nova/scheduler/client/query.py", line 41, in select_destinations
2026-05-08 19:30:17.500 8 ERROR nova.conductor.manager     return self.scheduler_rpcapi.select_destinations(context, spec_obj,
2026-05-08 19:30:17.500 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/nova/scheduler/rpcapi.py", line 160, in select_destinations
2026-05-08 19:30:17.500 8 ERROR nova.conductor.manager     return cctxt.call(ctxt, 'select_destinations', **msg_args)
2026-05-08 19:30:17.500 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/oslo_messaging/rpc/client.py", line 189, in call
2026-05-08 19:30:17.500 8 ERROR nova.conductor.manager     result = self.transport._send(
2026-05-08 19:30:17.500 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/oslo_messaging/transport.py", line 123, in _send
2026-05-08 19:30:17.500 8 ERROR nova.conductor.manager     return self._driver.send(target, ctxt, message,
2026-05-08 19:30:17.500 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 689, in send
2026-05-08 19:30:17.500 8 ERROR nova.conductor.manager     return self._send(target, ctxt, message, wait_for_reply, timeout,
2026-05-08 19:30:17.500 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 681, in _send
2026-05-08 19:30:17.500 8 ERROR nova.conductor.manager     raise result
2026-05-08 19:30:17.500 8 ERROR nova.conductor.manager nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
2026-05-08 19:30:17.500 8 ERROR nova.conductor.manager Traceback (most recent call last):
2026-05-08 19:30:17.500 8 ERROR nova.conductor.manager 
2026-05-08 19:30:17.500 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/oslo_messaging/rpc/server.py", line 241, in inner
2026-05-08 19:30:17.500 8 ERROR nova.conductor.manager     return func(*args, **kwargs)
2026-05-08 19:30:17.500 8 ERROR nova.conductor.manager 
2026-05-08 19:30:17.500 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/nova/scheduler/manager.py", line 209, in select_destinations
2026-05-08 19:30:17.500 8 ERROR nova.conductor.manager     raise exception.NoValidHost(reason="")
2026-05-08 19:30:17.500 8 ERROR nova.conductor.manager 
2026-05-08 19:30:17.500 8 ERROR nova.conductor.manager nova.exception.NoValidHost: No valid host was found. 
2026-05-08 19:30:17.500 8 ERROR nova.conductor.manager 
2026-05-08 19:30:17.500 8 ERROR nova.conductor.manager 
2026-05-08 19:30:17.574 8 WARNING nova.scheduler.utils [None req-571a2436-0c44-4c33-8f6c-3727b27e823b 50cdd03d2313463e8f95ed5ac6ed6eaa d23145985e404c09a53ce987678705f6 - - default default] Failed to compute_task_build_instances: No valid host was found. 
Traceback (most recent call last):

  File "/var/lib/openstack/lib/python3.10/site-packages/oslo_messaging/rpc/server.py", line 241, in inner
    return func(*args, **kwargs)

  File "/var/lib/openstack/lib/python3.10/site-packages/nova/scheduler/manager.py", line 209, in select_destinations
    raise exception.NoValidHost(reason="")

nova.exception.NoValidHost: No valid host was found. 
: nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
2026-05-08 19:30:17.575 8 WARNING nova.scheduler.utils [None req-571a2436-0c44-4c33-8f6c-3727b27e823b 50cdd03d2313463e8f95ed5ac6ed6eaa d23145985e404c09a53ce987678705f6 - - default default] [instance: 94acb5c8-0308-41b7-994a-3dd3353803bd] Setting instance to ERROR state.: nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
2026-05-08 19:30:18.685 7 ERROR nova.conductor.manager [None req-23a01a42-d6f1-4522-b625-54a15dda6af3 ea663f6bbdd04d918f7508465cab1131 7d14d0885153441d8d0297f2fbf9c06a - - default default] Failed to schedule instances: nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
Traceback (most recent call last):

  File "/var/lib/openstack/lib/python3.10/site-packages/oslo_messaging/rpc/server.py", line 241, in inner
    return func(*args, **kwargs)

  File "/var/lib/openstack/lib/python3.10/site-packages/nova/scheduler/manager.py", line 209, in select_destinations
    raise exception.NoValidHost(reason="")

nova.exception.NoValidHost: No valid host was found.
2026-05-08 19:30:18.685 7 ERROR nova.conductor.manager Traceback (most recent call last):
2026-05-08 19:30:18.685 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/nova/conductor/manager.py", line 1587, in schedule_and_build_instances
2026-05-08 19:30:18.685 7 ERROR nova.conductor.manager     host_lists = self._schedule_instances(context, request_specs[0],
2026-05-08 19:30:18.685 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/nova/conductor/manager.py", line 940, in _schedule_instances
2026-05-08 19:30:18.685 7 ERROR nova.conductor.manager     host_lists = self.query_client.select_destinations(
2026-05-08 19:30:18.685 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/nova/scheduler/client/query.py", line 41, in select_destinations
2026-05-08 19:30:18.685 7 ERROR nova.conductor.manager     return self.scheduler_rpcapi.select_destinations(context, spec_obj,
2026-05-08 19:30:18.685 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/nova/scheduler/rpcapi.py", line 160, in select_destinations
2026-05-08 19:30:18.685 7 ERROR nova.conductor.manager     return cctxt.call(ctxt, 'select_destinations', **msg_args)
2026-05-08 19:30:18.685 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/oslo_messaging/rpc/client.py", line 189, in call
2026-05-08 19:30:18.685 7 ERROR nova.conductor.manager     result = self.transport._send(
2026-05-08 19:30:18.685 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/oslo_messaging/transport.py", line 123, in _send
2026-05-08 19:30:18.685 7 ERROR nova.conductor.manager     return self._driver.send(target, ctxt, message,
2026-05-08 19:30:18.685 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 689, in send
2026-05-08 19:30:18.685 7 ERROR nova.conductor.manager     return self._send(target, ctxt, message, wait_for_reply, timeout,
2026-05-08 19:30:18.685 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 681, in _send
2026-05-08 19:30:18.685 7 ERROR nova.conductor.manager     raise result
2026-05-08 19:30:18.685 7 ERROR nova.conductor.manager nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
2026-05-08 19:30:18.685 7 ERROR nova.conductor.manager Traceback (most recent call last):
2026-05-08 19:30:18.685 7 ERROR nova.conductor.manager 
2026-05-08 19:30:18.685 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/oslo_messaging/rpc/server.py", line 241, in inner
2026-05-08 19:30:18.685 7 ERROR nova.conductor.manager     return func(*args, **kwargs)
2026-05-08 19:30:18.685 7 ERROR nova.conductor.manager 
2026-05-08 19:30:18.685 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/nova/scheduler/manager.py", line 209, in select_destinations
2026-05-08 19:30:18.685 7 ERROR nova.conductor.manager     raise exception.NoValidHost(reason="")
2026-05-08 19:30:18.685 7 ERROR nova.conductor.manager 
2026-05-08 19:30:18.685 7 ERROR nova.conductor.manager nova.exception.NoValidHost: No valid host was found. 
2026-05-08 19:30:18.685 7 ERROR nova.conductor.manager 
2026-05-08 19:30:18.685 7 ERROR nova.conductor.manager 
2026-05-08 19:30:18.767 7 WARNING nova.scheduler.utils [None req-23a01a42-d6f1-4522-b625-54a15dda6af3 ea663f6bbdd04d918f7508465cab1131 7d14d0885153441d8d0297f2fbf9c06a - - default default] Failed to compute_task_build_instances: No valid host was found. 
Traceback (most recent call last):

  File "/var/lib/openstack/lib/python3.10/site-packages/oslo_messaging/rpc/server.py", line 241, in inner
    return func(*args, **kwargs)

  File "/var/lib/openstack/lib/python3.10/site-packages/nova/scheduler/manager.py", line 209, in select_destinations
    raise exception.NoValidHost(reason="")

nova.exception.NoValidHost: No valid host was found. 
: nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
2026-05-08 19:30:18.769 7 WARNING nova.scheduler.utils [None req-23a01a42-d6f1-4522-b625-54a15dda6af3 ea663f6bbdd04d918f7508465cab1131 7d14d0885153441d8d0297f2fbf9c06a - - default default] [instance: 20d61930-816e-4e79-938d-7b267c94e6f3] Setting instance to ERROR state.: nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
2026-05-08 19:30:20.204 8 ERROR nova.conductor.manager [None req-36b05502-e1f0-4b9d-b40b-006866d6fab1 9634612f69c9471281b0b8a68e612ecf 82394a39c1484436b98fc3769c6bc52a - - default default] Failed to schedule instances: nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
Traceback (most recent call last):

  File "/var/lib/openstack/lib/python3.10/site-packages/oslo_messaging/rpc/server.py", line 241, in inner
    return func(*args, **kwargs)

  File "/var/lib/openstack/lib/python3.10/site-packages/nova/scheduler/manager.py", line 209, in select_destinations
    raise exception.NoValidHost(reason="")

nova.exception.NoValidHost: No valid host was found.
2026-05-08 19:30:20.204 8 ERROR nova.conductor.manager Traceback (most recent call last):
2026-05-08 19:30:20.204 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/nova/conductor/manager.py", line 1587, in schedule_and_build_instances
2026-05-08 19:30:20.204 8 ERROR nova.conductor.manager     host_lists = self._schedule_instances(context, request_specs[0],
2026-05-08 19:30:20.204 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/nova/conductor/manager.py", line 940, in _schedule_instances
2026-05-08 19:30:20.204 8 ERROR nova.conductor.manager     host_lists = self.query_client.select_destinations(
2026-05-08 19:30:20.204 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/nova/scheduler/client/query.py", line 41, in select_destinations
2026-05-08 19:30:20.204 8 ERROR nova.conductor.manager     return self.scheduler_rpcapi.select_destinations(context, spec_obj,
2026-05-08 19:30:20.204 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/nova/scheduler/rpcapi.py", line 160, in select_destinations
2026-05-08 19:30:20.204 8 ERROR nova.conductor.manager     return cctxt.call(ctxt, 'select_destinations', **msg_args)
2026-05-08 19:30:20.204 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/oslo_messaging/rpc/client.py", line 189, in call
2026-05-08 19:30:20.204 8 ERROR nova.conductor.manager     result = self.transport._send(
2026-05-08 19:30:20.204 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/oslo_messaging/transport.py", line 123, in _send
2026-05-08 19:30:20.204 8 ERROR nova.conductor.manager     return self._driver.send(target, ctxt, message,
2026-05-08 19:30:20.204 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 689, in send
2026-05-08 19:30:20.204 8 ERROR nova.conductor.manager     return self._send(target, ctxt, message, wait_for_reply, timeout,
2026-05-08 19:30:20.204 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 681, in _send
2026-05-08 19:30:20.204 8 ERROR nova.conductor.manager     raise result
2026-05-08 19:30:20.204 8 ERROR nova.conductor.manager nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
2026-05-08 19:30:20.204 8 ERROR nova.conductor.manager Traceback (most recent call last):
2026-05-08 19:30:20.204 8 ERROR nova.conductor.manager 
2026-05-08 19:30:20.204 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/oslo_messaging/rpc/server.py", line 241, in inner
2026-05-08 19:30:20.204 8 ERROR nova.conductor.manager     return func(*args, **kwargs)
2026-05-08 19:30:20.204 8 ERROR nova.conductor.manager 
2026-05-08 19:30:20.204 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/nova/scheduler/manager.py", line 209, in select_destinations
2026-05-08 19:30:20.204 8 ERROR nova.conductor.manager     raise exception.NoValidHost(reason="")
2026-05-08 19:30:20.204 8 ERROR nova.conductor.manager 
2026-05-08 19:30:20.204 8 ERROR nova.conductor.manager nova.exception.NoValidHost: No valid host was found. 
2026-05-08 19:30:20.204 8 ERROR nova.conductor.manager 
2026-05-08 19:30:20.204 8 ERROR nova.conductor.manager 
2026-05-08 19:30:20.295 8 WARNING nova.scheduler.utils [None req-36b05502-e1f0-4b9d-b40b-006866d6fab1 9634612f69c9471281b0b8a68e612ecf 82394a39c1484436b98fc3769c6bc52a - - default default] Failed to compute_task_build_instances: No valid host was found. 
Traceback (most recent call last):

  File "/var/lib/openstack/lib/python3.10/site-packages/oslo_messaging/rpc/server.py", line 241, in inner
    return func(*args, **kwargs)

  File "/var/lib/openstack/lib/python3.10/site-packages/nova/scheduler/manager.py", line 209, in select_destinations
    raise exception.NoValidHost(reason="")

nova.exception.NoValidHost: No valid host was found. 
: nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
2026-05-08 19:30:20.297 8 WARNING nova.scheduler.utils [None req-36b05502-e1f0-4b9d-b40b-006866d6fab1 9634612f69c9471281b0b8a68e612ecf 82394a39c1484436b98fc3769c6bc52a - - default default] [instance: 53e076f9-a56d-4b78-9f19-7fa899822240] Setting instance to ERROR state.: nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
2026-05-08 19:30:33.516 7 ERROR nova.conductor.manager [None req-8cf120fc-f0b5-4b0e-861e-67e932b43e30 3fcb6c254a5246dbbf38b1bc5c0b466d a8ca6d707aef4ca48656a5ba992873d3 - - default default] Failed to schedule instances: nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
Traceback (most recent call last):

  File "/var/lib/openstack/lib/python3.10/site-packages/oslo_messaging/rpc/server.py", line 241, in inner
    return func(*args, **kwargs)

  File "/var/lib/openstack/lib/python3.10/site-packages/nova/scheduler/manager.py", line 209, in select_destinations
    raise exception.NoValidHost(reason="")

nova.exception.NoValidHost: No valid host was found.
2026-05-08 19:30:33.516 7 ERROR nova.conductor.manager Traceback (most recent call last):
2026-05-08 19:30:33.516 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/nova/conductor/manager.py", line 1587, in schedule_and_build_instances
2026-05-08 19:30:33.516 7 ERROR nova.conductor.manager     host_lists = self._schedule_instances(context, request_specs[0],
2026-05-08 19:30:33.516 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/nova/conductor/manager.py", line 940, in _schedule_instances
2026-05-08 19:30:33.516 7 ERROR nova.conductor.manager     host_lists = self.query_client.select_destinations(
2026-05-08 19:30:33.516 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/nova/scheduler/client/query.py", line 41, in select_destinations
2026-05-08 19:30:33.516 7 ERROR nova.conductor.manager     return self.scheduler_rpcapi.select_destinations(context, spec_obj,
2026-05-08 19:30:33.516 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/nova/scheduler/rpcapi.py", line 160, in select_destinations
2026-05-08 19:30:33.516 7 ERROR nova.conductor.manager     return cctxt.call(ctxt, 'select_destinations', **msg_args)
2026-05-08 19:30:33.516 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/oslo_messaging/rpc/client.py", line 189, in call
2026-05-08 19:30:33.516 7 ERROR nova.conductor.manager     result = self.transport._send(
2026-05-08 19:30:33.516 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/oslo_messaging/transport.py", line 123, in _send
2026-05-08 19:30:33.516 7 ERROR nova.conductor.manager     return self._driver.send(target, ctxt, message,
2026-05-08 19:30:33.516 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 689, in send
2026-05-08 19:30:33.516 7 ERROR nova.conductor.manager     return self._send(target, ctxt, message, wait_for_reply, timeout,
2026-05-08 19:30:33.516 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 681, in _send
2026-05-08 19:30:33.516 7 ERROR nova.conductor.manager     raise result
2026-05-08 19:30:33.516 7 ERROR nova.conductor.manager nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
2026-05-08 19:30:33.516 7 ERROR nova.conductor.manager Traceback (most recent call last):
2026-05-08 19:30:33.516 7 ERROR nova.conductor.manager 
2026-05-08 19:30:33.516 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/oslo_messaging/rpc/server.py", line 241, in inner
2026-05-08 19:30:33.516 7 ERROR nova.conductor.manager     return func(*args, **kwargs)
2026-05-08 19:30:33.516 7 ERROR nova.conductor.manager 
2026-05-08 19:30:33.516 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/nova/scheduler/manager.py", line 209, in select_destinations
2026-05-08 19:30:33.516 7 ERROR nova.conductor.manager     raise exception.NoValidHost(reason="")
2026-05-08 19:30:33.516 7 ERROR nova.conductor.manager 
2026-05-08 19:30:33.516 7 ERROR nova.conductor.manager nova.exception.NoValidHost: No valid host was found. 
2026-05-08 19:30:33.516 7 ERROR nova.conductor.manager 
2026-05-08 19:30:33.516 7 ERROR nova.conductor.manager 
2026-05-08 19:30:33.611 7 WARNING nova.scheduler.utils [None req-8cf120fc-f0b5-4b0e-861e-67e932b43e30 3fcb6c254a5246dbbf38b1bc5c0b466d a8ca6d707aef4ca48656a5ba992873d3 - - default default] Failed to compute_task_build_instances: No valid host was found. 
Traceback (most recent call last):

  File "/var/lib/openstack/lib/python3.10/site-packages/oslo_messaging/rpc/server.py", line 241, in inner
    return func(*args, **kwargs)

  File "/var/lib/openstack/lib/python3.10/site-packages/nova/scheduler/manager.py", line 209, in select_destinations
    raise exception.NoValidHost(reason="")

nova.exception.NoValidHost: No valid host was found. 
: nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
2026-05-08 19:30:33.612 7 WARNING nova.scheduler.utils [None req-8cf120fc-f0b5-4b0e-861e-67e932b43e30 3fcb6c254a5246dbbf38b1bc5c0b466d a8ca6d707aef4ca48656a5ba992873d3 - - default default] [instance: 60a93f2c-4554-4188-a94b-62608a20588d] Setting instance to ERROR state.: nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
2026-05-08 19:31:48.186 8 ERROR nova.conductor.manager [None req-f7c2df64-715f-46b8-aa96-32a90ca683cc 476c888368b746068dd7705bbfb5759f 948d654aa123497ab1d6f802bb0c5b15 - - default default] Failed to schedule instances: nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
Traceback (most recent call last):

  File "/var/lib/openstack/lib/python3.10/site-packages/oslo_messaging/rpc/server.py", line 241, in inner
    return func(*args, **kwargs)

  File "/var/lib/openstack/lib/python3.10/site-packages/nova/scheduler/manager.py", line 209, in select_destinations
    raise exception.NoValidHost(reason="")

nova.exception.NoValidHost: No valid host was found.
2026-05-08 19:31:48.186 8 ERROR nova.conductor.manager Traceback (most recent call last):
2026-05-08 19:31:48.186 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/nova/conductor/manager.py", line 1587, in schedule_and_build_instances
2026-05-08 19:31:48.186 8 ERROR nova.conductor.manager     host_lists = self._schedule_instances(context, request_specs[0],
2026-05-08 19:31:48.186 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/nova/conductor/manager.py", line 940, in _schedule_instances
2026-05-08 19:31:48.186 8 ERROR nova.conductor.manager     host_lists = self.query_client.select_destinations(
2026-05-08 19:31:48.186 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/nova/scheduler/client/query.py", line 41, in select_destinations
2026-05-08 19:31:48.186 8 ERROR nova.conductor.manager     return self.scheduler_rpcapi.select_destinations(context, spec_obj,
2026-05-08 19:31:48.186 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/nova/scheduler/rpcapi.py", line 160, in select_destinations
2026-05-08 19:31:48.186 8 ERROR nova.conductor.manager     return cctxt.call(ctxt, 'select_destinations', **msg_args)
2026-05-08 19:31:48.186 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/oslo_messaging/rpc/client.py", line 189, in call
2026-05-08 19:31:48.186 8 ERROR nova.conductor.manager     result = self.transport._send(
2026-05-08 19:31:48.186 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/oslo_messaging/transport.py", line 123, in _send
2026-05-08 19:31:48.186 8 ERROR nova.conductor.manager     return self._driver.send(target, ctxt, message,
2026-05-08 19:31:48.186 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 689, in send
2026-05-08 19:31:48.186 8 ERROR nova.conductor.manager     return self._send(target, ctxt, message, wait_for_reply, timeout,
2026-05-08 19:31:48.186 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 681, in _send
2026-05-08 19:31:48.186 8 ERROR nova.conductor.manager     raise result
2026-05-08 19:31:48.186 8 ERROR nova.conductor.manager nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
2026-05-08 19:31:48.186 8 ERROR nova.conductor.manager Traceback (most recent call last):
2026-05-08 19:31:48.186 8 ERROR nova.conductor.manager 
2026-05-08 19:31:48.186 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/oslo_messaging/rpc/server.py", line 241, in inner
2026-05-08 19:31:48.186 8 ERROR nova.conductor.manager     return func(*args, **kwargs)
2026-05-08 19:31:48.186 8 ERROR nova.conductor.manager 
2026-05-08 19:31:48.186 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/nova/scheduler/manager.py", line 209, in select_destinations
2026-05-08 19:31:48.186 8 ERROR nova.conductor.manager     raise exception.NoValidHost(reason="")
2026-05-08 19:31:48.186 8 ERROR nova.conductor.manager 
2026-05-08 19:31:48.186 8 ERROR nova.conductor.manager nova.exception.NoValidHost: No valid host was found. 
2026-05-08 19:31:48.186 8 ERROR nova.conductor.manager 
2026-05-08 19:31:48.186 8 ERROR nova.conductor.manager 
2026-05-08 19:31:48.283 8 WARNING nova.scheduler.utils [None req-f7c2df64-715f-46b8-aa96-32a90ca683cc 476c888368b746068dd7705bbfb5759f 948d654aa123497ab1d6f802bb0c5b15 - - default default] Failed to compute_task_build_instances: No valid host was found. 
Traceback (most recent call last):

  File "/var/lib/openstack/lib/python3.10/site-packages/oslo_messaging/rpc/server.py", line 241, in inner
    return func(*args, **kwargs)

  File "/var/lib/openstack/lib/python3.10/site-packages/nova/scheduler/manager.py", line 209, in select_destinations
    raise exception.NoValidHost(reason="")

nova.exception.NoValidHost: No valid host was found. 
: nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
2026-05-08 19:31:48.284 8 WARNING nova.scheduler.utils [None req-f7c2df64-715f-46b8-aa96-32a90ca683cc 476c888368b746068dd7705bbfb5759f 948d654aa123497ab1d6f802bb0c5b15 - - default default] [instance: 9783a97e-b7e4-49e2-8d86-7c1ddeb042fb] Setting instance to ERROR state.: nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
2026-05-08 19:31:52.305 7 ERROR nova.conductor.manager [None req-385bb61d-58bd-4e28-9664-fa697404edfd b3010e4732b44a96a2bec06ef9989af9 1c6d7c6e0f924057b34394f55c9c75b3 - - default default] Failed to schedule instances: nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
Traceback (most recent call last):

  File "/var/lib/openstack/lib/python3.10/site-packages/oslo_messaging/rpc/server.py", line 241, in inner
    return func(*args, **kwargs)

  File "/var/lib/openstack/lib/python3.10/site-packages/nova/scheduler/manager.py", line 209, in select_destinations
    raise exception.NoValidHost(reason="")

nova.exception.NoValidHost: No valid host was found.
2026-05-08 19:31:52.305 7 ERROR nova.conductor.manager Traceback (most recent call last):
2026-05-08 19:31:52.305 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/nova/conductor/manager.py", line 1587, in schedule_and_build_instances
2026-05-08 19:31:52.305 7 ERROR nova.conductor.manager     host_lists = self._schedule_instances(context, request_specs[0],
2026-05-08 19:31:52.305 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/nova/conductor/manager.py", line 940, in _schedule_instances
2026-05-08 19:31:52.305 7 ERROR nova.conductor.manager     host_lists = self.query_client.select_destinations(
2026-05-08 19:31:52.305 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/nova/scheduler/client/query.py", line 41, in select_destinations
2026-05-08 19:31:52.305 7 ERROR nova.conductor.manager     return self.scheduler_rpcapi.select_destinations(context, spec_obj,
2026-05-08 19:31:52.305 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/nova/scheduler/rpcapi.py", line 160, in select_destinations
2026-05-08 19:31:52.305 7 ERROR nova.conductor.manager     return cctxt.call(ctxt, 'select_destinations', **msg_args)
2026-05-08 19:31:52.305 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/oslo_messaging/rpc/client.py", line 189, in call
2026-05-08 19:31:52.305 7 ERROR nova.conductor.manager     result = self.transport._send(
2026-05-08 19:31:52.305 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/oslo_messaging/transport.py", line 123, in _send
2026-05-08 19:31:52.305 7 ERROR nova.conductor.manager     return self._driver.send(target, ctxt, message,
2026-05-08 19:31:52.305 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 689, in send
2026-05-08 19:31:52.305 7 ERROR nova.conductor.manager     return self._send(target, ctxt, message, wait_for_reply, timeout,
2026-05-08 19:31:52.305 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 681, in _send
2026-05-08 19:31:52.305 7 ERROR nova.conductor.manager     raise result
2026-05-08 19:31:52.305 7 ERROR nova.conductor.manager nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
2026-05-08 19:31:52.305 7 ERROR nova.conductor.manager Traceback (most recent call last):
2026-05-08 19:31:52.305 7 ERROR nova.conductor.manager 
2026-05-08 19:31:52.305 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/oslo_messaging/rpc/server.py", line 241, in inner
2026-05-08 19:31:52.305 7 ERROR nova.conductor.manager     return func(*args, **kwargs)
2026-05-08 19:31:52.305 7 ERROR nova.conductor.manager 
2026-05-08 19:31:52.305 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/nova/scheduler/manager.py", line 209, in select_destinations
2026-05-08 19:31:52.305 7 ERROR nova.conductor.manager     raise exception.NoValidHost(reason="")
2026-05-08 19:31:52.305 7 ERROR nova.conductor.manager 
2026-05-08 19:31:52.305 7 ERROR nova.conductor.manager nova.exception.NoValidHost: No valid host was found. 
2026-05-08 19:31:52.305 7 ERROR nova.conductor.manager 
2026-05-08 19:31:52.305 7 ERROR nova.conductor.manager 
2026-05-08 19:31:52.408 7 WARNING nova.scheduler.utils [None req-385bb61d-58bd-4e28-9664-fa697404edfd b3010e4732b44a96a2bec06ef9989af9 1c6d7c6e0f924057b34394f55c9c75b3 - - default default] Failed to compute_task_build_instances: No valid host was found. 
Traceback (most recent call last):

  File "/var/lib/openstack/lib/python3.10/site-packages/oslo_messaging/rpc/server.py", line 241, in inner
    return func(*args, **kwargs)

  File "/var/lib/openstack/lib/python3.10/site-packages/nova/scheduler/manager.py", line 209, in select_destinations
    raise exception.NoValidHost(reason="")

nova.exception.NoValidHost: No valid host was found. 
: nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
2026-05-08 19:31:52.409 7 WARNING nova.scheduler.utils [None req-385bb61d-58bd-4e28-9664-fa697404edfd b3010e4732b44a96a2bec06ef9989af9 1c6d7c6e0f924057b34394f55c9c75b3 - - default default] [instance: d1c08af2-71d9-4a50-b65c-29520ef0395c] Setting instance to ERROR state.: nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
2026-05-08 19:32:14.198 8 ERROR nova.conductor.manager [None req-a011dbdf-eb75-4ce8-b5d2-5ae6448961b9 3f50d7850ba94c0e91b1c2db5c4e331e c8919b9078bf4856a4846dad3e75f700 - - default default] Failed to schedule instances: nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
Traceback (most recent call last):

  File "/var/lib/openstack/lib/python3.10/site-packages/oslo_messaging/rpc/server.py", line 241, in inner
    return func(*args, **kwargs)

  File "/var/lib/openstack/lib/python3.10/site-packages/nova/scheduler/manager.py", line 209, in select_destinations
    raise exception.NoValidHost(reason="")

nova.exception.NoValidHost: No valid host was found.
2026-05-08 19:32:14.198 8 ERROR nova.conductor.manager Traceback (most recent call last):
2026-05-08 19:32:14.198 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/nova/conductor/manager.py", line 1587, in schedule_and_build_instances
2026-05-08 19:32:14.198 8 ERROR nova.conductor.manager     host_lists = self._schedule_instances(context, request_specs[0],
2026-05-08 19:32:14.198 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/nova/conductor/manager.py", line 940, in _schedule_instances
2026-05-08 19:32:14.198 8 ERROR nova.conductor.manager     host_lists = self.query_client.select_destinations(
2026-05-08 19:32:14.198 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/nova/scheduler/client/query.py", line 41, in select_destinations
2026-05-08 19:32:14.198 8 ERROR nova.conductor.manager     return self.scheduler_rpcapi.select_destinations(context, spec_obj,
2026-05-08 19:32:14.198 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/nova/scheduler/rpcapi.py", line 160, in select_destinations
2026-05-08 19:32:14.198 8 ERROR nova.conductor.manager     return cctxt.call(ctxt, 'select_destinations', **msg_args)
2026-05-08 19:32:14.198 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/oslo_messaging/rpc/client.py", line 189, in call
2026-05-08 19:32:14.198 8 ERROR nova.conductor.manager     result = self.transport._send(
2026-05-08 19:32:14.198 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/oslo_messaging/transport.py", line 123, in _send
2026-05-08 19:32:14.198 8 ERROR nova.conductor.manager     return self._driver.send(target, ctxt, message,
2026-05-08 19:32:14.198 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 689, in send
2026-05-08 19:32:14.198 8 ERROR nova.conductor.manager     return self._send(target, ctxt, message, wait_for_reply, timeout,
2026-05-08 19:32:14.198 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 681, in _send
2026-05-08 19:32:14.198 8 ERROR nova.conductor.manager     raise result
2026-05-08 19:32:14.198 8 ERROR nova.conductor.manager nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
2026-05-08 19:32:14.198 8 ERROR nova.conductor.manager Traceback (most recent call last):
2026-05-08 19:32:14.198 8 ERROR nova.conductor.manager 
2026-05-08 19:32:14.198 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/oslo_messaging/rpc/server.py", line 241, in inner
2026-05-08 19:32:14.198 8 ERROR nova.conductor.manager     return func(*args, **kwargs)
2026-05-08 19:32:14.198 8 ERROR nova.conductor.manager 
2026-05-08 19:32:14.198 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/nova/scheduler/manager.py", line 209, in select_destinations
2026-05-08 19:32:14.198 8 ERROR nova.conductor.manager     raise exception.NoValidHost(reason="")
2026-05-08 19:32:14.198 8 ERROR nova.conductor.manager 
2026-05-08 19:32:14.198 8 ERROR nova.conductor.manager nova.exception.NoValidHost: No valid host was found. 
2026-05-08 19:32:14.198 8 ERROR nova.conductor.manager 
2026-05-08 19:32:14.198 8 ERROR nova.conductor.manager 
2026-05-08 19:32:14.294 8 WARNING nova.scheduler.utils [None req-a011dbdf-eb75-4ce8-b5d2-5ae6448961b9 3f50d7850ba94c0e91b1c2db5c4e331e c8919b9078bf4856a4846dad3e75f700 - - default default] Failed to compute_task_build_instances: No valid host was found. 
Traceback (most recent call last):

  File "/var/lib/openstack/lib/python3.10/site-packages/oslo_messaging/rpc/server.py", line 241, in inner
    return func(*args, **kwargs)

  File "/var/lib/openstack/lib/python3.10/site-packages/nova/scheduler/manager.py", line 209, in select_destinations
    raise exception.NoValidHost(reason="")

nova.exception.NoValidHost: No valid host was found. 
: nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
2026-05-08 19:32:14.295 8 WARNING nova.scheduler.utils [None req-a011dbdf-eb75-4ce8-b5d2-5ae6448961b9 3f50d7850ba94c0e91b1c2db5c4e331e c8919b9078bf4856a4846dad3e75f700 - - default default] [instance: 3e3e735d-5815-489a-9e03-2b6c3a035be2] Setting instance to ERROR state.: nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
2026-05-08 19:33:09.790 7 ERROR nova.conductor.manager [None req-06992bc9-6ad9-4955-94b3-dcb821f96cd6 615a2e42287b4593b9ce7fe6f3d00cba fd11ac02a3554dc7a7adc7c95a1c0e40 - - default default] Failed to schedule instances: nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
Traceback (most recent call last):

  File "/var/lib/openstack/lib/python3.10/site-packages/oslo_messaging/rpc/server.py", line 241, in inner
    return func(*args, **kwargs)

  File "/var/lib/openstack/lib/python3.10/site-packages/nova/scheduler/manager.py", line 209, in select_destinations
    raise exception.NoValidHost(reason="")

nova.exception.NoValidHost: No valid host was found.
2026-05-08 19:33:09.790 7 ERROR nova.conductor.manager Traceback (most recent call last):
2026-05-08 19:33:09.790 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/nova/conductor/manager.py", line 1587, in schedule_and_build_instances
2026-05-08 19:33:09.790 7 ERROR nova.conductor.manager     host_lists = self._schedule_instances(context, request_specs[0],
2026-05-08 19:33:09.790 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/nova/conductor/manager.py", line 940, in _schedule_instances
2026-05-08 19:33:09.790 7 ERROR nova.conductor.manager     host_lists = self.query_client.select_destinations(
2026-05-08 19:33:09.790 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/nova/scheduler/client/query.py", line 41, in select_destinations
2026-05-08 19:33:09.790 7 ERROR nova.conductor.manager     return self.scheduler_rpcapi.select_destinations(context, spec_obj,
2026-05-08 19:33:09.790 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/nova/scheduler/rpcapi.py", line 160, in select_destinations
2026-05-08 19:33:09.790 7 ERROR nova.conductor.manager     return cctxt.call(ctxt, 'select_destinations', **msg_args)
2026-05-08 19:33:09.790 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/oslo_messaging/rpc/client.py", line 189, in call
2026-05-08 19:33:09.790 7 ERROR nova.conductor.manager     result = self.transport._send(
2026-05-08 19:33:09.790 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/oslo_messaging/transport.py", line 123, in _send
2026-05-08 19:33:09.790 7 ERROR nova.conductor.manager     return self._driver.send(target, ctxt, message,
2026-05-08 19:33:09.790 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 689, in send
2026-05-08 19:33:09.790 7 ERROR nova.conductor.manager     return self._send(target, ctxt, message, wait_for_reply, timeout,
2026-05-08 19:33:09.790 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 681, in _send
2026-05-08 19:33:09.790 7 ERROR nova.conductor.manager     raise result
2026-05-08 19:33:09.790 7 ERROR nova.conductor.manager nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
2026-05-08 19:33:09.790 7 ERROR nova.conductor.manager Traceback (most recent call last):
2026-05-08 19:33:09.790 7 ERROR nova.conductor.manager 
2026-05-08 19:33:09.790 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/oslo_messaging/rpc/server.py", line 241, in inner
2026-05-08 19:33:09.790 7 ERROR nova.conductor.manager     return func(*args, **kwargs)
2026-05-08 19:33:09.790 7 ERROR nova.conductor.manager 
2026-05-08 19:33:09.790 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.10/site-packages/nova/scheduler/manager.py", line 209, in select_destinations
2026-05-08 19:33:09.790 7 ERROR nova.conductor.manager     raise exception.NoValidHost(reason="")
2026-05-08 19:33:09.790 7 ERROR nova.conductor.manager 
2026-05-08 19:33:09.790 7 ERROR nova.conductor.manager nova.exception.NoValidHost: No valid host was found. 
2026-05-08 19:33:09.790 7 ERROR nova.conductor.manager 
2026-05-08 19:33:09.790 7 ERROR nova.conductor.manager 
2026-05-08 19:33:09.891 7 WARNING nova.scheduler.utils [None req-06992bc9-6ad9-4955-94b3-dcb821f96cd6 615a2e42287b4593b9ce7fe6f3d00cba fd11ac02a3554dc7a7adc7c95a1c0e40 - - default default] Failed to compute_task_build_instances: No valid host was found. 
Traceback (most recent call last):

  File "/var/lib/openstack/lib/python3.10/site-packages/oslo_messaging/rpc/server.py", line 241, in inner
    return func(*args, **kwargs)

  File "/var/lib/openstack/lib/python3.10/site-packages/nova/scheduler/manager.py", line 209, in select_destinations
    raise exception.NoValidHost(reason="")

nova.exception.NoValidHost: No valid host was found. 
: nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
2026-05-08 19:33:09.893 7 WARNING nova.scheduler.utils [None req-06992bc9-6ad9-4955-94b3-dcb821f96cd6 615a2e42287b4593b9ce7fe6f3d00cba fd11ac02a3554dc7a7adc7c95a1c0e40 - - default default] [instance: 074988fe-d455-4d9b-8b61-675ee0438195] Setting instance to ERROR state.: nova.exception_Remote.NoValidHost_Remote: No valid host was found.