+ exec nova-conductor --config-file /etc/nova/nova.conf
2026-10-06 13:44:02.232 1 INFO oslo_service.backend.eventlet.service [None req-efd7c8a9-fb44-4ec6-9ed6-d1b319d3746e - - - - - -] Starting 2 workers
2026-10-06 13:44:02.241 7 INFO nova.service [-] Starting conductor node (version 31.3.2)
2026-10-06 13:44:02.241 8 INFO nova.service [-] Starting conductor node (version 31.3.2)
2026-10-06 13:44:02.242 1 WARNING oslo_config.cfg [None req-efd7c8a9-fb44-4ec6-9ed6-d1b319d3746e - - - - - -] 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.
2026-10-06 14:22:21.452 7 ERROR nova.conductor.manager [None req-87b88d05-a080-474d-84a6-0ebce47b42ce 2be4d19a280440babc543d9dba19bc83 92fa1ca8daee491192e3b038f7ceb279 - - 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/python3.12/site-packages/oslo_messaging/rpc/server.py", line 269, in inner
    return func(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^

  File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/manager.py", line 255, in select_destinations
    raise exception.NoValidHost(reason="")

nova.exception.NoValidHost: No valid host was found.
2026-10-06 14:22:21.452 7 ERROR nova.conductor.manager Traceback (most recent call last):
2026-10-06 14:22:21.452 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/conductor/manager.py", line 1654, in schedule_and_build_instances
2026-10-06 14:22:21.452 7 ERROR nova.conductor.manager     host_lists = self._schedule_instances(context, request_specs[0],
2026-10-06 14:22:21.452 7 ERROR nova.conductor.manager                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:22:21.452 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/conductor/manager.py", line 942, in _schedule_instances
2026-10-06 14:22:21.452 7 ERROR nova.conductor.manager     host_lists = self.query_client.select_destinations(
2026-10-06 14:22:21.452 7 ERROR nova.conductor.manager                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:22:21.452 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/client/query.py", line 41, in select_destinations
2026-10-06 14:22:21.452 7 ERROR nova.conductor.manager     return self.scheduler_rpcapi.select_destinations(context, spec_obj,
2026-10-06 14:22:21.452 7 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:22:21.452 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/rpcapi.py", line 160, in select_destinations
2026-10-06 14:22:21.452 7 ERROR nova.conductor.manager     return cctxt.call(ctxt, 'select_destinations', **msg_args)
2026-10-06 14:22:21.452 7 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:22:21.452 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/rpc/client.py", line 190, in call
2026-10-06 14:22:21.452 7 ERROR nova.conductor.manager     result = self.transport._send(
2026-10-06 14:22:21.452 7 ERROR nova.conductor.manager              ^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:22:21.452 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/transport.py", line 123, in _send
2026-10-06 14:22:21.452 7 ERROR nova.conductor.manager     return self._driver.send(target, ctxt, message,
2026-10-06 14:22:21.452 7 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:22:21.452 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 806, in send
2026-10-06 14:22:21.452 7 ERROR nova.conductor.manager     return self._send(target, ctxt, message, wait_for_reply, timeout,
2026-10-06 14:22:21.452 7 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:22:21.452 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 798, in _send
2026-10-06 14:22:21.452 7 ERROR nova.conductor.manager     raise result
2026-10-06 14:22:21.452 7 ERROR nova.conductor.manager nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
2026-10-06 14:22:21.452 7 ERROR nova.conductor.manager Traceback (most recent call last):
2026-10-06 14:22:21.452 7 ERROR nova.conductor.manager 
2026-10-06 14:22:21.452 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/rpc/server.py", line 269, in inner
2026-10-06 14:22:21.452 7 ERROR nova.conductor.manager     return func(*args, **kwargs)
2026-10-06 14:22:21.452 7 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:22:21.452 7 ERROR nova.conductor.manager 
2026-10-06 14:22:21.452 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/manager.py", line 255, in select_destinations
2026-10-06 14:22:21.452 7 ERROR nova.conductor.manager     raise exception.NoValidHost(reason="")
2026-10-06 14:22:21.452 7 ERROR nova.conductor.manager 
2026-10-06 14:22:21.452 7 ERROR nova.conductor.manager nova.exception.NoValidHost: No valid host was found. 
2026-10-06 14:22:21.452 7 ERROR nova.conductor.manager 
2026-10-06 14:22:21.452 7 ERROR nova.conductor.manager 
2026-10-06 14:22:21.624 7 WARNING nova.scheduler.utils [None req-87b88d05-a080-474d-84a6-0ebce47b42ce 2be4d19a280440babc543d9dba19bc83 92fa1ca8daee491192e3b038f7ceb279 - - default default] Failed to compute_task_build_instances: No valid host was found. 
Traceback (most recent call last):

  File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/rpc/server.py", line 269, in inner
    return func(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^

  File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/manager.py", line 255, 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. 
2026-10-06 14:22:21.625 7 WARNING nova.scheduler.utils [None req-87b88d05-a080-474d-84a6-0ebce47b42ce 2be4d19a280440babc543d9dba19bc83 92fa1ca8daee491192e3b038f7ceb279 - - default default] [instance: f6180bd6-f377-455d-85fb-9edb2d1321eb] Setting instance to ERROR state.: nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
2026-10-06 14:22:21.657 7 WARNING oslo_config.cfg [None req-87b88d05-a080-474d-84a6-0ebce47b42ce 2be4d19a280440babc543d9dba19bc83 92fa1ca8daee491192e3b038f7ceb279 - - 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. 
2026-10-06 14:22:22.443 8 ERROR nova.conductor.manager [None req-1eaa5fee-cf6e-486c-80a5-30699f94fbec 4e8d24d6389747328e340d539e136775 65a8aa6656194bb7befd83a866512874 - - 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/python3.12/site-packages/oslo_messaging/rpc/server.py", line 269, in inner
    return func(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^

  File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/manager.py", line 255, in select_destinations
    raise exception.NoValidHost(reason="")

nova.exception.NoValidHost: No valid host was found.
2026-10-06 14:22:22.443 8 ERROR nova.conductor.manager Traceback (most recent call last):
2026-10-06 14:22:22.443 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/conductor/manager.py", line 1654, in schedule_and_build_instances
2026-10-06 14:22:22.443 8 ERROR nova.conductor.manager     host_lists = self._schedule_instances(context, request_specs[0],
2026-10-06 14:22:22.443 8 ERROR nova.conductor.manager                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:22:22.443 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/conductor/manager.py", line 942, in _schedule_instances
2026-10-06 14:22:22.443 8 ERROR nova.conductor.manager     host_lists = self.query_client.select_destinations(
2026-10-06 14:22:22.443 8 ERROR nova.conductor.manager                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:22:22.443 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/client/query.py", line 41, in select_destinations
2026-10-06 14:22:22.443 8 ERROR nova.conductor.manager     return self.scheduler_rpcapi.select_destinations(context, spec_obj,
2026-10-06 14:22:22.443 8 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:22:22.443 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/rpcapi.py", line 160, in select_destinations
2026-10-06 14:22:22.443 8 ERROR nova.conductor.manager     return cctxt.call(ctxt, 'select_destinations', **msg_args)
2026-10-06 14:22:22.443 8 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:22:22.443 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/rpc/client.py", line 190, in call
2026-10-06 14:22:22.443 8 ERROR nova.conductor.manager     result = self.transport._send(
2026-10-06 14:22:22.443 8 ERROR nova.conductor.manager              ^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:22:22.443 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/transport.py", line 123, in _send
2026-10-06 14:22:22.443 8 ERROR nova.conductor.manager     return self._driver.send(target, ctxt, message,
2026-10-06 14:22:22.443 8 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:22:22.443 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 806, in send
2026-10-06 14:22:22.443 8 ERROR nova.conductor.manager     return self._send(target, ctxt, message, wait_for_reply, timeout,
2026-10-06 14:22:22.443 8 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:22:22.443 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 798, in _send
2026-10-06 14:22:22.443 8 ERROR nova.conductor.manager     raise result
2026-10-06 14:22:22.443 8 ERROR nova.conductor.manager nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
2026-10-06 14:22:22.443 8 ERROR nova.conductor.manager Traceback (most recent call last):
2026-10-06 14:22:22.443 8 ERROR nova.conductor.manager 
2026-10-06 14:22:22.443 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/rpc/server.py", line 269, in inner
2026-10-06 14:22:22.443 8 ERROR nova.conductor.manager     return func(*args, **kwargs)
2026-10-06 14:22:22.443 8 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:22:22.443 8 ERROR nova.conductor.manager 
2026-10-06 14:22:22.443 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/manager.py", line 255, in select_destinations
2026-10-06 14:22:22.443 8 ERROR nova.conductor.manager     raise exception.NoValidHost(reason="")
2026-10-06 14:22:22.443 8 ERROR nova.conductor.manager 
2026-10-06 14:22:22.443 8 ERROR nova.conductor.manager nova.exception.NoValidHost: No valid host was found. 
2026-10-06 14:22:22.443 8 ERROR nova.conductor.manager 
2026-10-06 14:22:22.443 8 ERROR nova.conductor.manager 
2026-10-06 14:22:22.715 8 WARNING nova.scheduler.utils [None req-1eaa5fee-cf6e-486c-80a5-30699f94fbec 4e8d24d6389747328e340d539e136775 65a8aa6656194bb7befd83a866512874 - - default default] Failed to compute_task_build_instances: No valid host was found. 
Traceback (most recent call last):

  File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/rpc/server.py", line 269, in inner
    return func(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^

  File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/manager.py", line 255, 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. 
2026-10-06 14:22:22.716 8 WARNING nova.scheduler.utils [None req-1eaa5fee-cf6e-486c-80a5-30699f94fbec 4e8d24d6389747328e340d539e136775 65a8aa6656194bb7befd83a866512874 - - default default] [instance: fe68b6ab-d2be-4b09-9306-08840f100ad4] Setting instance to ERROR state.: nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
2026-10-06 14:22:22.769 8 WARNING oslo_config.cfg [None req-1eaa5fee-cf6e-486c-80a5-30699f94fbec 4e8d24d6389747328e340d539e136775 65a8aa6656194bb7befd83a866512874 - - 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. 
2026-10-06 14:22:37.429 7 ERROR nova.conductor.manager [None req-e768872d-d257-45f0-a989-5a544b8a6ab5 707d604262244cd8b4a76ffd954980c1 189b9e1b23c646e28a0af07c0c7ccb71 - - 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/python3.12/site-packages/oslo_messaging/rpc/server.py", line 269, in inner
    return func(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^

  File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/manager.py", line 255, in select_destinations
    raise exception.NoValidHost(reason="")

nova.exception.NoValidHost: No valid host was found.
2026-10-06 14:22:37.429 7 ERROR nova.conductor.manager Traceback (most recent call last):
2026-10-06 14:22:37.429 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/conductor/manager.py", line 1654, in schedule_and_build_instances
2026-10-06 14:22:37.429 7 ERROR nova.conductor.manager     host_lists = self._schedule_instances(context, request_specs[0],
2026-10-06 14:22:37.429 7 ERROR nova.conductor.manager                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:22:37.429 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/conductor/manager.py", line 942, in _schedule_instances
2026-10-06 14:22:37.429 7 ERROR nova.conductor.manager     host_lists = self.query_client.select_destinations(
2026-10-06 14:22:37.429 7 ERROR nova.conductor.manager                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:22:37.429 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/client/query.py", line 41, in select_destinations
2026-10-06 14:22:37.429 7 ERROR nova.conductor.manager     return self.scheduler_rpcapi.select_destinations(context, spec_obj,
2026-10-06 14:22:37.429 7 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:22:37.429 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/rpcapi.py", line 160, in select_destinations
2026-10-06 14:22:37.429 7 ERROR nova.conductor.manager     return cctxt.call(ctxt, 'select_destinations', **msg_args)
2026-10-06 14:22:37.429 7 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:22:37.429 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/rpc/client.py", line 190, in call
2026-10-06 14:22:37.429 7 ERROR nova.conductor.manager     result = self.transport._send(
2026-10-06 14:22:37.429 7 ERROR nova.conductor.manager              ^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:22:37.429 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/transport.py", line 123, in _send
2026-10-06 14:22:37.429 7 ERROR nova.conductor.manager     return self._driver.send(target, ctxt, message,
2026-10-06 14:22:37.429 7 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:22:37.429 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 806, in send
2026-10-06 14:22:37.429 7 ERROR nova.conductor.manager     return self._send(target, ctxt, message, wait_for_reply, timeout,
2026-10-06 14:22:37.429 7 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:22:37.429 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 798, in _send
2026-10-06 14:22:37.429 7 ERROR nova.conductor.manager     raise result
2026-10-06 14:22:37.429 7 ERROR nova.conductor.manager nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
2026-10-06 14:22:37.429 7 ERROR nova.conductor.manager Traceback (most recent call last):
2026-10-06 14:22:37.429 7 ERROR nova.conductor.manager 
2026-10-06 14:22:37.429 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/rpc/server.py", line 269, in inner
2026-10-06 14:22:37.429 7 ERROR nova.conductor.manager     return func(*args, **kwargs)
2026-10-06 14:22:37.429 7 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:22:37.429 7 ERROR nova.conductor.manager 
2026-10-06 14:22:37.429 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/manager.py", line 255, in select_destinations
2026-10-06 14:22:37.429 7 ERROR nova.conductor.manager     raise exception.NoValidHost(reason="")
2026-10-06 14:22:37.429 7 ERROR nova.conductor.manager 
2026-10-06 14:22:37.429 7 ERROR nova.conductor.manager nova.exception.NoValidHost: No valid host was found. 
2026-10-06 14:22:37.429 7 ERROR nova.conductor.manager 
2026-10-06 14:22:37.429 7 ERROR nova.conductor.manager 
2026-10-06 14:22:37.564 7 WARNING nova.scheduler.utils [None req-e768872d-d257-45f0-a989-5a544b8a6ab5 707d604262244cd8b4a76ffd954980c1 189b9e1b23c646e28a0af07c0c7ccb71 - - default default] Failed to compute_task_build_instances: No valid host was found. 
Traceback (most recent call last):

  File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/rpc/server.py", line 269, in inner
    return func(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^

  File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/manager.py", line 255, 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. 
2026-10-06 14:22:37.565 7 WARNING nova.scheduler.utils [None req-e768872d-d257-45f0-a989-5a544b8a6ab5 707d604262244cd8b4a76ffd954980c1 189b9e1b23c646e28a0af07c0c7ccb71 - - default default] [instance: 6a28d433-f87c-44e5-b87d-8c2e5182f026] Setting instance to ERROR state.: nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
2026-10-06 14:22:38.381 8 ERROR nova.conductor.manager [None req-481a03c9-fce1-48b1-a402-172dbdc487a3 c60e50c71b914a96b006a114db28c0f5 70a83c3d166642a0bddb88ccb6334343 - - 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/python3.12/site-packages/oslo_messaging/rpc/server.py", line 269, in inner
    return func(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^

  File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/manager.py", line 255, in select_destinations
    raise exception.NoValidHost(reason="")

nova.exception.NoValidHost: No valid host was found.
2026-10-06 14:22:38.381 8 ERROR nova.conductor.manager Traceback (most recent call last):
2026-10-06 14:22:38.381 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/conductor/manager.py", line 1654, in schedule_and_build_instances
2026-10-06 14:22:38.381 8 ERROR nova.conductor.manager     host_lists = self._schedule_instances(context, request_specs[0],
2026-10-06 14:22:38.381 8 ERROR nova.conductor.manager                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:22:38.381 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/conductor/manager.py", line 942, in _schedule_instances
2026-10-06 14:22:38.381 8 ERROR nova.conductor.manager     host_lists = self.query_client.select_destinations(
2026-10-06 14:22:38.381 8 ERROR nova.conductor.manager                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:22:38.381 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/client/query.py", line 41, in select_destinations
2026-10-06 14:22:38.381 8 ERROR nova.conductor.manager     return self.scheduler_rpcapi.select_destinations(context, spec_obj,
2026-10-06 14:22:38.381 8 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:22:38.381 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/rpcapi.py", line 160, in select_destinations
2026-10-06 14:22:38.381 8 ERROR nova.conductor.manager     return cctxt.call(ctxt, 'select_destinations', **msg_args)
2026-10-06 14:22:38.381 8 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:22:38.381 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/rpc/client.py", line 190, in call
2026-10-06 14:22:38.381 8 ERROR nova.conductor.manager     result = self.transport._send(
2026-10-06 14:22:38.381 8 ERROR nova.conductor.manager              ^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:22:38.381 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/transport.py", line 123, in _send
2026-10-06 14:22:38.381 8 ERROR nova.conductor.manager     return self._driver.send(target, ctxt, message,
2026-10-06 14:22:38.381 8 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:22:38.381 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 806, in send
2026-10-06 14:22:38.381 8 ERROR nova.conductor.manager     return self._send(target, ctxt, message, wait_for_reply, timeout,
2026-10-06 14:22:38.381 8 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:22:38.381 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 798, in _send
2026-10-06 14:22:38.381 8 ERROR nova.conductor.manager     raise result
2026-10-06 14:22:38.381 8 ERROR nova.conductor.manager nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
2026-10-06 14:22:38.381 8 ERROR nova.conductor.manager Traceback (most recent call last):
2026-10-06 14:22:38.381 8 ERROR nova.conductor.manager 
2026-10-06 14:22:38.381 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/rpc/server.py", line 269, in inner
2026-10-06 14:22:38.381 8 ERROR nova.conductor.manager     return func(*args, **kwargs)
2026-10-06 14:22:38.381 8 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:22:38.381 8 ERROR nova.conductor.manager 
2026-10-06 14:22:38.381 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/manager.py", line 255, in select_destinations
2026-10-06 14:22:38.381 8 ERROR nova.conductor.manager     raise exception.NoValidHost(reason="")
2026-10-06 14:22:38.381 8 ERROR nova.conductor.manager 
2026-10-06 14:22:38.381 8 ERROR nova.conductor.manager nova.exception.NoValidHost: No valid host was found. 
2026-10-06 14:22:38.381 8 ERROR nova.conductor.manager 
2026-10-06 14:22:38.381 8 ERROR nova.conductor.manager 
2026-10-06 14:22:38.485 8 WARNING nova.scheduler.utils [None req-481a03c9-fce1-48b1-a402-172dbdc487a3 c60e50c71b914a96b006a114db28c0f5 70a83c3d166642a0bddb88ccb6334343 - - default default] Failed to compute_task_build_instances: No valid host was found. 
Traceback (most recent call last):

  File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/rpc/server.py", line 269, in inner
    return func(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^

  File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/manager.py", line 255, 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. 
2026-10-06 14:22:38.486 8 WARNING nova.scheduler.utils [None req-481a03c9-fce1-48b1-a402-172dbdc487a3 c60e50c71b914a96b006a114db28c0f5 70a83c3d166642a0bddb88ccb6334343 - - default default] [instance: 64f1f012-101f-466f-af86-62a87a599680] Setting instance to ERROR state.: nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
2026-10-06 14:22:49.360 7 ERROR nova.conductor.manager [None req-afd22d6e-ff47-41fc-b894-412b85f172dc a419fa7f33344cc594da84591f631c6e 93807e7a20b8434db43a05c2494737b6 - - 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/python3.12/site-packages/oslo_messaging/rpc/server.py", line 269, in inner
    return func(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^

  File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/manager.py", line 255, in select_destinations
    raise exception.NoValidHost(reason="")

nova.exception.NoValidHost: No valid host was found.
2026-10-06 14:22:49.360 7 ERROR nova.conductor.manager Traceback (most recent call last):
2026-10-06 14:22:49.360 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/conductor/manager.py", line 1654, in schedule_and_build_instances
2026-10-06 14:22:49.360 7 ERROR nova.conductor.manager     host_lists = self._schedule_instances(context, request_specs[0],
2026-10-06 14:22:49.360 7 ERROR nova.conductor.manager                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:22:49.360 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/conductor/manager.py", line 942, in _schedule_instances
2026-10-06 14:22:49.360 7 ERROR nova.conductor.manager     host_lists = self.query_client.select_destinations(
2026-10-06 14:22:49.360 7 ERROR nova.conductor.manager                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:22:49.360 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/client/query.py", line 41, in select_destinations
2026-10-06 14:22:49.360 7 ERROR nova.conductor.manager     return self.scheduler_rpcapi.select_destinations(context, spec_obj,
2026-10-06 14:22:49.360 7 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:22:49.360 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/rpcapi.py", line 160, in select_destinations
2026-10-06 14:22:49.360 7 ERROR nova.conductor.manager     return cctxt.call(ctxt, 'select_destinations', **msg_args)
2026-10-06 14:22:49.360 7 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:22:49.360 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/rpc/client.py", line 190, in call
2026-10-06 14:22:49.360 7 ERROR nova.conductor.manager     result = self.transport._send(
2026-10-06 14:22:49.360 7 ERROR nova.conductor.manager              ^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:22:49.360 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/transport.py", line 123, in _send
2026-10-06 14:22:49.360 7 ERROR nova.conductor.manager     return self._driver.send(target, ctxt, message,
2026-10-06 14:22:49.360 7 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:22:49.360 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 806, in send
2026-10-06 14:22:49.360 7 ERROR nova.conductor.manager     return self._send(target, ctxt, message, wait_for_reply, timeout,
2026-10-06 14:22:49.360 7 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:22:49.360 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 798, in _send
2026-10-06 14:22:49.360 7 ERROR nova.conductor.manager     raise result
2026-10-06 14:22:49.360 7 ERROR nova.conductor.manager nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
2026-10-06 14:22:49.360 7 ERROR nova.conductor.manager Traceback (most recent call last):
2026-10-06 14:22:49.360 7 ERROR nova.conductor.manager 
2026-10-06 14:22:49.360 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/rpc/server.py", line 269, in inner
2026-10-06 14:22:49.360 7 ERROR nova.conductor.manager     return func(*args, **kwargs)
2026-10-06 14:22:49.360 7 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:22:49.360 7 ERROR nova.conductor.manager 
2026-10-06 14:22:49.360 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/manager.py", line 255, in select_destinations
2026-10-06 14:22:49.360 7 ERROR nova.conductor.manager     raise exception.NoValidHost(reason="")
2026-10-06 14:22:49.360 7 ERROR nova.conductor.manager 
2026-10-06 14:22:49.360 7 ERROR nova.conductor.manager nova.exception.NoValidHost: No valid host was found. 
2026-10-06 14:22:49.360 7 ERROR nova.conductor.manager 
2026-10-06 14:22:49.360 7 ERROR nova.conductor.manager 
2026-10-06 14:22:49.457 7 WARNING nova.scheduler.utils [None req-afd22d6e-ff47-41fc-b894-412b85f172dc a419fa7f33344cc594da84591f631c6e 93807e7a20b8434db43a05c2494737b6 - - default default] Failed to compute_task_build_instances: No valid host was found. 
Traceback (most recent call last):

  File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/rpc/server.py", line 269, in inner
    return func(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^

  File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/manager.py", line 255, 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. 
2026-10-06 14:22:49.458 7 WARNING nova.scheduler.utils [None req-afd22d6e-ff47-41fc-b894-412b85f172dc a419fa7f33344cc594da84591f631c6e 93807e7a20b8434db43a05c2494737b6 - - default default] [instance: d3682487-2695-487e-b0aa-663be7558865] Setting instance to ERROR state.: nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
2026-10-06 14:22:49.646 8 ERROR nova.conductor.manager [None req-f15be37c-6027-4008-822f-952acb5ad046 491ce90c2d634f4483d28720fc375f7c 0ec573fb305f4e7fb456329e06c1f0dd - - 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/python3.12/site-packages/oslo_messaging/rpc/server.py", line 269, in inner
    return func(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^

  File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/manager.py", line 255, in select_destinations
    raise exception.NoValidHost(reason="")

nova.exception.NoValidHost: No valid host was found.
2026-10-06 14:22:49.646 8 ERROR nova.conductor.manager Traceback (most recent call last):
2026-10-06 14:22:49.646 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/conductor/manager.py", line 1654, in schedule_and_build_instances
2026-10-06 14:22:49.646 8 ERROR nova.conductor.manager     host_lists = self._schedule_instances(context, request_specs[0],
2026-10-06 14:22:49.646 8 ERROR nova.conductor.manager                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:22:49.646 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/conductor/manager.py", line 942, in _schedule_instances
2026-10-06 14:22:49.646 8 ERROR nova.conductor.manager     host_lists = self.query_client.select_destinations(
2026-10-06 14:22:49.646 8 ERROR nova.conductor.manager                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:22:49.646 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/client/query.py", line 41, in select_destinations
2026-10-06 14:22:49.646 8 ERROR nova.conductor.manager     return self.scheduler_rpcapi.select_destinations(context, spec_obj,
2026-10-06 14:22:49.646 8 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:22:49.646 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/rpcapi.py", line 160, in select_destinations
2026-10-06 14:22:49.646 8 ERROR nova.conductor.manager     return cctxt.call(ctxt, 'select_destinations', **msg_args)
2026-10-06 14:22:49.646 8 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:22:49.646 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/rpc/client.py", line 190, in call
2026-10-06 14:22:49.646 8 ERROR nova.conductor.manager     result = self.transport._send(
2026-10-06 14:22:49.646 8 ERROR nova.conductor.manager              ^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:22:49.646 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/transport.py", line 123, in _send
2026-10-06 14:22:49.646 8 ERROR nova.conductor.manager     return self._driver.send(target, ctxt, message,
2026-10-06 14:22:49.646 8 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:22:49.646 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 806, in send
2026-10-06 14:22:49.646 8 ERROR nova.conductor.manager     return self._send(target, ctxt, message, wait_for_reply, timeout,
2026-10-06 14:22:49.646 8 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:22:49.646 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 798, in _send
2026-10-06 14:22:49.646 8 ERROR nova.conductor.manager     raise result
2026-10-06 14:22:49.646 8 ERROR nova.conductor.manager nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
2026-10-06 14:22:49.646 8 ERROR nova.conductor.manager Traceback (most recent call last):
2026-10-06 14:22:49.646 8 ERROR nova.conductor.manager 
2026-10-06 14:22:49.646 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/rpc/server.py", line 269, in inner
2026-10-06 14:22:49.646 8 ERROR nova.conductor.manager     return func(*args, **kwargs)
2026-10-06 14:22:49.646 8 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:22:49.646 8 ERROR nova.conductor.manager 
2026-10-06 14:22:49.646 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/manager.py", line 255, in select_destinations
2026-10-06 14:22:49.646 8 ERROR nova.conductor.manager     raise exception.NoValidHost(reason="")
2026-10-06 14:22:49.646 8 ERROR nova.conductor.manager 
2026-10-06 14:22:49.646 8 ERROR nova.conductor.manager nova.exception.NoValidHost: No valid host was found. 
2026-10-06 14:22:49.646 8 ERROR nova.conductor.manager 
2026-10-06 14:22:49.646 8 ERROR nova.conductor.manager 
2026-10-06 14:22:49.780 8 WARNING nova.scheduler.utils [None req-f15be37c-6027-4008-822f-952acb5ad046 491ce90c2d634f4483d28720fc375f7c 0ec573fb305f4e7fb456329e06c1f0dd - - default default] Failed to compute_task_build_instances: No valid host was found. 
Traceback (most recent call last):

  File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/rpc/server.py", line 269, in inner
    return func(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^

  File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/manager.py", line 255, 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. 
2026-10-06 14:22:49.781 8 WARNING nova.scheduler.utils [None req-f15be37c-6027-4008-822f-952acb5ad046 491ce90c2d634f4483d28720fc375f7c 0ec573fb305f4e7fb456329e06c1f0dd - - default default] [instance: 3eb78c00-c1eb-4383-9f48-5fb1873a4a51] Setting instance to ERROR state.: nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
2026-10-06 14:24:09.847 7 ERROR nova.conductor.manager [None req-cfb49eb9-f404-4298-bdf5-9e90778ee01a 87e762120a304f2e879b8b32bb32bb26 070fcfe28b3c44f2b5c9165be44ba4ef - - 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/python3.12/site-packages/oslo_messaging/rpc/server.py", line 269, in inner
    return func(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^

  File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/manager.py", line 255, in select_destinations
    raise exception.NoValidHost(reason="")

nova.exception.NoValidHost: No valid host was found.
2026-10-06 14:24:09.847 7 ERROR nova.conductor.manager Traceback (most recent call last):
2026-10-06 14:24:09.847 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/conductor/manager.py", line 1654, in schedule_and_build_instances
2026-10-06 14:24:09.847 7 ERROR nova.conductor.manager     host_lists = self._schedule_instances(context, request_specs[0],
2026-10-06 14:24:09.847 7 ERROR nova.conductor.manager                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:24:09.847 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/conductor/manager.py", line 942, in _schedule_instances
2026-10-06 14:24:09.847 7 ERROR nova.conductor.manager     host_lists = self.query_client.select_destinations(
2026-10-06 14:24:09.847 7 ERROR nova.conductor.manager                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:24:09.847 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/client/query.py", line 41, in select_destinations
2026-10-06 14:24:09.847 7 ERROR nova.conductor.manager     return self.scheduler_rpcapi.select_destinations(context, spec_obj,
2026-10-06 14:24:09.847 7 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:24:09.847 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/rpcapi.py", line 160, in select_destinations
2026-10-06 14:24:09.847 7 ERROR nova.conductor.manager     return cctxt.call(ctxt, 'select_destinations', **msg_args)
2026-10-06 14:24:09.847 7 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:24:09.847 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/rpc/client.py", line 190, in call
2026-10-06 14:24:09.847 7 ERROR nova.conductor.manager     result = self.transport._send(
2026-10-06 14:24:09.847 7 ERROR nova.conductor.manager              ^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:24:09.847 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/transport.py", line 123, in _send
2026-10-06 14:24:09.847 7 ERROR nova.conductor.manager     return self._driver.send(target, ctxt, message,
2026-10-06 14:24:09.847 7 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:24:09.847 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 806, in send
2026-10-06 14:24:09.847 7 ERROR nova.conductor.manager     return self._send(target, ctxt, message, wait_for_reply, timeout,
2026-10-06 14:24:09.847 7 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:24:09.847 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 798, in _send
2026-10-06 14:24:09.847 7 ERROR nova.conductor.manager     raise result
2026-10-06 14:24:09.847 7 ERROR nova.conductor.manager nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
2026-10-06 14:24:09.847 7 ERROR nova.conductor.manager Traceback (most recent call last):
2026-10-06 14:24:09.847 7 ERROR nova.conductor.manager 
2026-10-06 14:24:09.847 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/rpc/server.py", line 269, in inner
2026-10-06 14:24:09.847 7 ERROR nova.conductor.manager     return func(*args, **kwargs)
2026-10-06 14:24:09.847 7 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:24:09.847 7 ERROR nova.conductor.manager 
2026-10-06 14:24:09.847 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/manager.py", line 255, in select_destinations
2026-10-06 14:24:09.847 7 ERROR nova.conductor.manager     raise exception.NoValidHost(reason="")
2026-10-06 14:24:09.847 7 ERROR nova.conductor.manager 
2026-10-06 14:24:09.847 7 ERROR nova.conductor.manager nova.exception.NoValidHost: No valid host was found. 
2026-10-06 14:24:09.847 7 ERROR nova.conductor.manager 
2026-10-06 14:24:09.847 7 ERROR nova.conductor.manager 
2026-10-06 14:24:10.010 7 WARNING nova.scheduler.utils [None req-cfb49eb9-f404-4298-bdf5-9e90778ee01a 87e762120a304f2e879b8b32bb32bb26 070fcfe28b3c44f2b5c9165be44ba4ef - - default default] Failed to compute_task_build_instances: No valid host was found. 
Traceback (most recent call last):

  File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/rpc/server.py", line 269, in inner
    return func(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^

  File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/manager.py", line 255, 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. 
2026-10-06 14:24:10.011 7 WARNING nova.scheduler.utils [None req-cfb49eb9-f404-4298-bdf5-9e90778ee01a 87e762120a304f2e879b8b32bb32bb26 070fcfe28b3c44f2b5c9165be44ba4ef - - default default] [instance: 0d213faa-b655-413d-9563-e3b09a84cf49] Setting instance to ERROR state.: nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
2026-10-06 14:24:42.636 8 ERROR nova.conductor.manager [None req-ccc6d13a-09b0-4b7b-8f0d-31d1a8253a89 ff9201bd98da40c6acb4ab22ad01f51c c0035b1503e64b3e99e8975501c09917 - - 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/python3.12/site-packages/oslo_messaging/rpc/server.py", line 269, in inner
    return func(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^

  File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/manager.py", line 255, in select_destinations
    raise exception.NoValidHost(reason="")

nova.exception.NoValidHost: No valid host was found.
2026-10-06 14:24:42.636 8 ERROR nova.conductor.manager Traceback (most recent call last):
2026-10-06 14:24:42.636 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/conductor/manager.py", line 1654, in schedule_and_build_instances
2026-10-06 14:24:42.636 8 ERROR nova.conductor.manager     host_lists = self._schedule_instances(context, request_specs[0],
2026-10-06 14:24:42.636 8 ERROR nova.conductor.manager                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:24:42.636 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/conductor/manager.py", line 942, in _schedule_instances
2026-10-06 14:24:42.636 8 ERROR nova.conductor.manager     host_lists = self.query_client.select_destinations(
2026-10-06 14:24:42.636 8 ERROR nova.conductor.manager                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:24:42.636 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/client/query.py", line 41, in select_destinations
2026-10-06 14:24:42.636 8 ERROR nova.conductor.manager     return self.scheduler_rpcapi.select_destinations(context, spec_obj,
2026-10-06 14:24:42.636 8 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:24:42.636 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/rpcapi.py", line 160, in select_destinations
2026-10-06 14:24:42.636 8 ERROR nova.conductor.manager     return cctxt.call(ctxt, 'select_destinations', **msg_args)
2026-10-06 14:24:42.636 8 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:24:42.636 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/rpc/client.py", line 190, in call
2026-10-06 14:24:42.636 8 ERROR nova.conductor.manager     result = self.transport._send(
2026-10-06 14:24:42.636 8 ERROR nova.conductor.manager              ^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:24:42.636 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/transport.py", line 123, in _send
2026-10-06 14:24:42.636 8 ERROR nova.conductor.manager     return self._driver.send(target, ctxt, message,
2026-10-06 14:24:42.636 8 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:24:42.636 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 806, in send
2026-10-06 14:24:42.636 8 ERROR nova.conductor.manager     return self._send(target, ctxt, message, wait_for_reply, timeout,
2026-10-06 14:24:42.636 8 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:24:42.636 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 798, in _send
2026-10-06 14:24:42.636 8 ERROR nova.conductor.manager     raise result
2026-10-06 14:24:42.636 8 ERROR nova.conductor.manager nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
2026-10-06 14:24:42.636 8 ERROR nova.conductor.manager Traceback (most recent call last):
2026-10-06 14:24:42.636 8 ERROR nova.conductor.manager 
2026-10-06 14:24:42.636 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/rpc/server.py", line 269, in inner
2026-10-06 14:24:42.636 8 ERROR nova.conductor.manager     return func(*args, **kwargs)
2026-10-06 14:24:42.636 8 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:24:42.636 8 ERROR nova.conductor.manager 
2026-10-06 14:24:42.636 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/manager.py", line 255, in select_destinations
2026-10-06 14:24:42.636 8 ERROR nova.conductor.manager     raise exception.NoValidHost(reason="")
2026-10-06 14:24:42.636 8 ERROR nova.conductor.manager 
2026-10-06 14:24:42.636 8 ERROR nova.conductor.manager nova.exception.NoValidHost: No valid host was found. 
2026-10-06 14:24:42.636 8 ERROR nova.conductor.manager 
2026-10-06 14:24:42.636 8 ERROR nova.conductor.manager 
2026-10-06 14:24:42.785 8 WARNING nova.scheduler.utils [None req-ccc6d13a-09b0-4b7b-8f0d-31d1a8253a89 ff9201bd98da40c6acb4ab22ad01f51c c0035b1503e64b3e99e8975501c09917 - - default default] Failed to compute_task_build_instances: No valid host was found. 
Traceback (most recent call last):

  File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/rpc/server.py", line 269, in inner
    return func(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^

  File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/manager.py", line 255, 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. 
2026-10-06 14:24:42.786 8 WARNING nova.scheduler.utils [None req-ccc6d13a-09b0-4b7b-8f0d-31d1a8253a89 ff9201bd98da40c6acb4ab22ad01f51c c0035b1503e64b3e99e8975501c09917 - - default default] [instance: 70f7169b-f964-4258-985b-66ef2bd2331a] Setting instance to ERROR state.: nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
2026-10-06 14:25:10.881 7 ERROR nova.conductor.manager [None req-f3c28f4c-1cea-4716-b2d7-d13f16ea6259 8de1c1e4044b48968d6f316517c90ac2 ec38dff796c34101a83f9aaf0e124da5 - - 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/python3.12/site-packages/oslo_messaging/rpc/server.py", line 269, in inner
    return func(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^

  File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/manager.py", line 255, in select_destinations
    raise exception.NoValidHost(reason="")

nova.exception.NoValidHost: No valid host was found.
2026-10-06 14:25:10.881 7 ERROR nova.conductor.manager Traceback (most recent call last):
2026-10-06 14:25:10.881 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/conductor/manager.py", line 1654, in schedule_and_build_instances
2026-10-06 14:25:10.881 7 ERROR nova.conductor.manager     host_lists = self._schedule_instances(context, request_specs[0],
2026-10-06 14:25:10.881 7 ERROR nova.conductor.manager                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:25:10.881 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/conductor/manager.py", line 942, in _schedule_instances
2026-10-06 14:25:10.881 7 ERROR nova.conductor.manager     host_lists = self.query_client.select_destinations(
2026-10-06 14:25:10.881 7 ERROR nova.conductor.manager                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:25:10.881 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/client/query.py", line 41, in select_destinations
2026-10-06 14:25:10.881 7 ERROR nova.conductor.manager     return self.scheduler_rpcapi.select_destinations(context, spec_obj,
2026-10-06 14:25:10.881 7 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:25:10.881 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/rpcapi.py", line 160, in select_destinations
2026-10-06 14:25:10.881 7 ERROR nova.conductor.manager     return cctxt.call(ctxt, 'select_destinations', **msg_args)
2026-10-06 14:25:10.881 7 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:25:10.881 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/rpc/client.py", line 190, in call
2026-10-06 14:25:10.881 7 ERROR nova.conductor.manager     result = self.transport._send(
2026-10-06 14:25:10.881 7 ERROR nova.conductor.manager              ^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:25:10.881 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/transport.py", line 123, in _send
2026-10-06 14:25:10.881 7 ERROR nova.conductor.manager     return self._driver.send(target, ctxt, message,
2026-10-06 14:25:10.881 7 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:25:10.881 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 806, in send
2026-10-06 14:25:10.881 7 ERROR nova.conductor.manager     return self._send(target, ctxt, message, wait_for_reply, timeout,
2026-10-06 14:25:10.881 7 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:25:10.881 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 798, in _send
2026-10-06 14:25:10.881 7 ERROR nova.conductor.manager     raise result
2026-10-06 14:25:10.881 7 ERROR nova.conductor.manager nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
2026-10-06 14:25:10.881 7 ERROR nova.conductor.manager Traceback (most recent call last):
2026-10-06 14:25:10.881 7 ERROR nova.conductor.manager 
2026-10-06 14:25:10.881 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/rpc/server.py", line 269, in inner
2026-10-06 14:25:10.881 7 ERROR nova.conductor.manager     return func(*args, **kwargs)
2026-10-06 14:25:10.881 7 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:25:10.881 7 ERROR nova.conductor.manager 
2026-10-06 14:25:10.881 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/manager.py", line 255, in select_destinations
2026-10-06 14:25:10.881 7 ERROR nova.conductor.manager     raise exception.NoValidHost(reason="")
2026-10-06 14:25:10.881 7 ERROR nova.conductor.manager 
2026-10-06 14:25:10.881 7 ERROR nova.conductor.manager nova.exception.NoValidHost: No valid host was found. 
2026-10-06 14:25:10.881 7 ERROR nova.conductor.manager 
2026-10-06 14:25:10.881 7 ERROR nova.conductor.manager 
2026-10-06 14:25:11.019 7 WARNING nova.scheduler.utils [None req-f3c28f4c-1cea-4716-b2d7-d13f16ea6259 8de1c1e4044b48968d6f316517c90ac2 ec38dff796c34101a83f9aaf0e124da5 - - default default] Failed to compute_task_build_instances: No valid host was found. 
Traceback (most recent call last):

  File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/rpc/server.py", line 269, in inner
    return func(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^

  File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/manager.py", line 255, 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. 
2026-10-06 14:25:11.021 7 WARNING nova.scheduler.utils [None req-f3c28f4c-1cea-4716-b2d7-d13f16ea6259 8de1c1e4044b48968d6f316517c90ac2 ec38dff796c34101a83f9aaf0e124da5 - - default default] [instance: 82292d46-30a5-42b3-ab9f-e5c7ef5a08e8] Setting instance to ERROR state.: nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
2026-10-06 14:25:54.213 8 ERROR nova.conductor.manager [None req-ea9191e7-190d-4847-b311-ea873db3a6c6 77722f4b2f7c4f1285e8835988fdb5ff deba307f667948e59d7c4b0d0c61160b - - 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/python3.12/site-packages/oslo_messaging/rpc/server.py", line 269, in inner
    return func(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^

  File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/manager.py", line 255, in select_destinations
    raise exception.NoValidHost(reason="")

nova.exception.NoValidHost: No valid host was found.
2026-10-06 14:25:54.213 8 ERROR nova.conductor.manager Traceback (most recent call last):
2026-10-06 14:25:54.213 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/conductor/manager.py", line 1654, in schedule_and_build_instances
2026-10-06 14:25:54.213 8 ERROR nova.conductor.manager     host_lists = self._schedule_instances(context, request_specs[0],
2026-10-06 14:25:54.213 8 ERROR nova.conductor.manager                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:25:54.213 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/conductor/manager.py", line 942, in _schedule_instances
2026-10-06 14:25:54.213 8 ERROR nova.conductor.manager     host_lists = self.query_client.select_destinations(
2026-10-06 14:25:54.213 8 ERROR nova.conductor.manager                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:25:54.213 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/client/query.py", line 41, in select_destinations
2026-10-06 14:25:54.213 8 ERROR nova.conductor.manager     return self.scheduler_rpcapi.select_destinations(context, spec_obj,
2026-10-06 14:25:54.213 8 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:25:54.213 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/rpcapi.py", line 160, in select_destinations
2026-10-06 14:25:54.213 8 ERROR nova.conductor.manager     return cctxt.call(ctxt, 'select_destinations', **msg_args)
2026-10-06 14:25:54.213 8 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:25:54.213 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/rpc/client.py", line 190, in call
2026-10-06 14:25:54.213 8 ERROR nova.conductor.manager     result = self.transport._send(
2026-10-06 14:25:54.213 8 ERROR nova.conductor.manager              ^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:25:54.213 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/transport.py", line 123, in _send
2026-10-06 14:25:54.213 8 ERROR nova.conductor.manager     return self._driver.send(target, ctxt, message,
2026-10-06 14:25:54.213 8 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:25:54.213 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 806, in send
2026-10-06 14:25:54.213 8 ERROR nova.conductor.manager     return self._send(target, ctxt, message, wait_for_reply, timeout,
2026-10-06 14:25:54.213 8 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:25:54.213 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 798, in _send
2026-10-06 14:25:54.213 8 ERROR nova.conductor.manager     raise result
2026-10-06 14:25:54.213 8 ERROR nova.conductor.manager nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
2026-10-06 14:25:54.213 8 ERROR nova.conductor.manager Traceback (most recent call last):
2026-10-06 14:25:54.213 8 ERROR nova.conductor.manager 
2026-10-06 14:25:54.213 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/rpc/server.py", line 269, in inner
2026-10-06 14:25:54.213 8 ERROR nova.conductor.manager     return func(*args, **kwargs)
2026-10-06 14:25:54.213 8 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^
2026-10-06 14:25:54.213 8 ERROR nova.conductor.manager 
2026-10-06 14:25:54.213 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/manager.py", line 255, in select_destinations
2026-10-06 14:25:54.213 8 ERROR nova.conductor.manager     raise exception.NoValidHost(reason="")
2026-10-06 14:25:54.213 8 ERROR nova.conductor.manager 
2026-10-06 14:25:54.213 8 ERROR nova.conductor.manager nova.exception.NoValidHost: No valid host was found. 
2026-10-06 14:25:54.213 8 ERROR nova.conductor.manager 
2026-10-06 14:25:54.213 8 ERROR nova.conductor.manager 
2026-10-06 14:25:54.412 8 WARNING nova.scheduler.utils [None req-ea9191e7-190d-4847-b311-ea873db3a6c6 77722f4b2f7c4f1285e8835988fdb5ff deba307f667948e59d7c4b0d0c61160b - - default default] Failed to compute_task_build_instances: No valid host was found. 
Traceback (most recent call last):

  File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/rpc/server.py", line 269, in inner
    return func(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^

  File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/manager.py", line 255, 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. 
2026-10-06 14:25:54.412 8 WARNING nova.scheduler.utils [None req-ea9191e7-190d-4847-b311-ea873db3a6c6 77722f4b2f7c4f1285e8835988fdb5ff deba307f667948e59d7c4b0d0c61160b - - default default] [instance: 930a1a6d-799f-46cc-b567-f32701bf4171] Setting instance to ERROR state.: nova.exception_Remote.NoValidHost_Remote: No valid host was found.