+ exec nova-conductor --config-file /etc/nova/nova.conf
2026-03-02 02:42:20.415 1 INFO nova.utils [None req-b984f228-4139-4ad1-ba3b-ed865a4c7357 - - - - - -] The cell worker thread pool MainProcess.cell_worker is initialized
2026-03-02 02:42:20.514 1 INFO oslo_service.backend._eventlet.service [None req-b984f228-4139-4ad1-ba3b-ed865a4c7357 - - - - - -] Starting 2 workers
2026-03-02 02:42:20.523 7 INFO nova.service [-] Starting conductor node (version 32.1.1)
2026-03-02 02:42:20.524 8 INFO nova.service [-] Starting conductor node (version 32.1.1)
2026-03-02 02:42:20.526 1 WARNING oslo_config.cfg [None req-b984f228-4139-4ad1-ba3b-ed865a4c7357 - - - - - -] 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.
2026-03-02 03:19:00.838 8 ERROR nova.conductor.manager [None req-4819f115-74db-4365-b14f-f16cdc6b03c5 6c8dff7c08de46dca9e26ca80ec4b8b4 5e086859d9cd43a69ea3a2eeae10fe0c - - 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.
2026-03-02 03:19:00.838 8 ERROR nova.conductor.manager Traceback (most recent call last):
2026-03-02 03:19:00.838 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
2026-03-02 03:19:00.838 8 ERROR nova.conductor.manager     host_lists = self._schedule_instances(context, request_specs[0],
2026-03-02 03:19:00.838 8 ERROR nova.conductor.manager                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:19:00.838 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/conductor/manager.py", line 942, in _schedule_instances
2026-03-02 03:19:00.838 8 ERROR nova.conductor.manager     host_lists = self.query_client.select_destinations(
2026-03-02 03:19:00.838 8 ERROR nova.conductor.manager                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:19:00.838 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/client/query.py", line 41, in select_destinations
2026-03-02 03:19:00.838 8 ERROR nova.conductor.manager     return self.scheduler_rpcapi.select_destinations(context, spec_obj,
2026-03-02 03:19:00.838 8 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:19:00.838 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/rpcapi.py", line 160, in select_destinations
2026-03-02 03:19:00.838 8 ERROR nova.conductor.manager     return cctxt.call(ctxt, 'select_destinations', **msg_args)
2026-03-02 03:19:00.838 8 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:19:00.838 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/rpc/client.py", line 180, in call
2026-03-02 03:19:00.838 8 ERROR nova.conductor.manager     result = self.transport._send(
2026-03-02 03:19:00.838 8 ERROR nova.conductor.manager              ^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:19:00.838 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/transport.py", line 123, in _send
2026-03-02 03:19:00.838 8 ERROR nova.conductor.manager     return self._driver.send(target, ctxt, message,
2026-03-02 03:19:00.838 8 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:19:00.838 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 794, in send
2026-03-02 03:19:00.838 8 ERROR nova.conductor.manager     return self._send(target, ctxt, message, wait_for_reply, timeout,
2026-03-02 03:19:00.838 8 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:19:00.838 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 786, in _send
2026-03-02 03:19:00.838 8 ERROR nova.conductor.manager     raise result
2026-03-02 03:19:00.838 8 ERROR nova.conductor.manager nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
2026-03-02 03:19:00.838 8 ERROR nova.conductor.manager Traceback (most recent call last):
2026-03-02 03:19:00.838 8 ERROR nova.conductor.manager 
2026-03-02 03:19:00.838 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/rpc/server.py", line 269, in inner
2026-03-02 03:19:00.838 8 ERROR nova.conductor.manager     return func(*args, **kwargs)
2026-03-02 03:19:00.838 8 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:19:00.838 8 ERROR nova.conductor.manager 
2026-03-02 03:19:00.838 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/manager.py", line 255, in select_destinations
2026-03-02 03:19:00.838 8 ERROR nova.conductor.manager     raise exception.NoValidHost(reason="")
2026-03-02 03:19:00.838 8 ERROR nova.conductor.manager 
2026-03-02 03:19:00.838 8 ERROR nova.conductor.manager nova.exception.NoValidHost: No valid host was found. 
2026-03-02 03:19:00.838 8 ERROR nova.conductor.manager 
2026-03-02 03:19:00.838 8 ERROR nova.conductor.manager 
2026-03-02 03:19:01.026 8 WARNING nova.scheduler.utils [None req-4819f115-74db-4365-b14f-f16cdc6b03c5 6c8dff7c08de46dca9e26ca80ec4b8b4 5e086859d9cd43a69ea3a2eeae10fe0c - - 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. 
2026-03-02 03:19:01.028 8 WARNING nova.scheduler.utils [None req-4819f115-74db-4365-b14f-f16cdc6b03c5 6c8dff7c08de46dca9e26ca80ec4b8b4 5e086859d9cd43a69ea3a2eeae10fe0c - - default default] [instance: aacead13-ce96-4097-8e9f-ce360b532d1a] Setting instance to ERROR state.: nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
2026-03-02 03:19:01.064 8 WARNING oslo_config.cfg [None req-4819f115-74db-4365-b14f-f16cdc6b03c5 6c8dff7c08de46dca9e26ca80ec4b8b4 5e086859d9cd43a69ea3a2eeae10fe0c - - 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. 
2026-03-02 03:19:15.073 7 ERROR nova.conductor.manager [None req-b7c1e9ac-4b5a-4999-8b7b-2268b55938f7 3c9ac21c3f0e4b0ea105c1d5aa3db10a 0c56d7bce80943fe851ad891b92d63c3 - - 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.
2026-03-02 03:19:15.073 7 ERROR nova.conductor.manager Traceback (most recent call last):
2026-03-02 03:19:15.073 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
2026-03-02 03:19:15.073 7 ERROR nova.conductor.manager     host_lists = self._schedule_instances(context, request_specs[0],
2026-03-02 03:19:15.073 7 ERROR nova.conductor.manager                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:19:15.073 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/conductor/manager.py", line 942, in _schedule_instances
2026-03-02 03:19:15.073 7 ERROR nova.conductor.manager     host_lists = self.query_client.select_destinations(
2026-03-02 03:19:15.073 7 ERROR nova.conductor.manager                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:19:15.073 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/client/query.py", line 41, in select_destinations
2026-03-02 03:19:15.073 7 ERROR nova.conductor.manager     return self.scheduler_rpcapi.select_destinations(context, spec_obj,
2026-03-02 03:19:15.073 7 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:19:15.073 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/rpcapi.py", line 160, in select_destinations
2026-03-02 03:19:15.073 7 ERROR nova.conductor.manager     return cctxt.call(ctxt, 'select_destinations', **msg_args)
2026-03-02 03:19:15.073 7 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:19:15.073 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/rpc/client.py", line 180, in call
2026-03-02 03:19:15.073 7 ERROR nova.conductor.manager     result = self.transport._send(
2026-03-02 03:19:15.073 7 ERROR nova.conductor.manager              ^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:19:15.073 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/transport.py", line 123, in _send
2026-03-02 03:19:15.073 7 ERROR nova.conductor.manager     return self._driver.send(target, ctxt, message,
2026-03-02 03:19:15.073 7 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:19:15.073 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 794, in send
2026-03-02 03:19:15.073 7 ERROR nova.conductor.manager     return self._send(target, ctxt, message, wait_for_reply, timeout,
2026-03-02 03:19:15.073 7 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:19:15.073 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 786, in _send
2026-03-02 03:19:15.073 7 ERROR nova.conductor.manager     raise result
2026-03-02 03:19:15.073 7 ERROR nova.conductor.manager nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
2026-03-02 03:19:15.073 7 ERROR nova.conductor.manager Traceback (most recent call last):
2026-03-02 03:19:15.073 7 ERROR nova.conductor.manager 
2026-03-02 03:19:15.073 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/rpc/server.py", line 269, in inner
2026-03-02 03:19:15.073 7 ERROR nova.conductor.manager     return func(*args, **kwargs)
2026-03-02 03:19:15.073 7 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:19:15.073 7 ERROR nova.conductor.manager 
2026-03-02 03:19:15.073 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/manager.py", line 255, in select_destinations
2026-03-02 03:19:15.073 7 ERROR nova.conductor.manager     raise exception.NoValidHost(reason="")
2026-03-02 03:19:15.073 7 ERROR nova.conductor.manager 
2026-03-02 03:19:15.073 7 ERROR nova.conductor.manager nova.exception.NoValidHost: No valid host was found. 
2026-03-02 03:19:15.073 7 ERROR nova.conductor.manager 
2026-03-02 03:19:15.073 7 ERROR nova.conductor.manager 
2026-03-02 03:19:15.289 7 WARNING nova.scheduler.utils [None req-b7c1e9ac-4b5a-4999-8b7b-2268b55938f7 3c9ac21c3f0e4b0ea105c1d5aa3db10a 0c56d7bce80943fe851ad891b92d63c3 - - 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. 
2026-03-02 03:19:15.291 7 WARNING nova.scheduler.utils [None req-b7c1e9ac-4b5a-4999-8b7b-2268b55938f7 3c9ac21c3f0e4b0ea105c1d5aa3db10a 0c56d7bce80943fe851ad891b92d63c3 - - default default] [instance: a65d87f3-c7d6-458d-8172-cf6506572824] Setting instance to ERROR state.: nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
2026-03-02 03:19:15.332 7 WARNING oslo_config.cfg [None req-b7c1e9ac-4b5a-4999-8b7b-2268b55938f7 3c9ac21c3f0e4b0ea105c1d5aa3db10a 0c56d7bce80943fe851ad891b92d63c3 - - 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. 
2026-03-02 03:19:15.785 8 ERROR nova.conductor.manager [None req-0ce560f7-4995-4fd0-94fd-0c505cc76ba2 57c725d0a4d7404b81d6c44c879b05f7 45aca817945e4a1fb65dc0dbf0db474b - - 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.
2026-03-02 03:19:15.785 8 ERROR nova.conductor.manager Traceback (most recent call last):
2026-03-02 03:19:15.785 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
2026-03-02 03:19:15.785 8 ERROR nova.conductor.manager     host_lists = self._schedule_instances(context, request_specs[0],
2026-03-02 03:19:15.785 8 ERROR nova.conductor.manager                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:19:15.785 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/conductor/manager.py", line 942, in _schedule_instances
2026-03-02 03:19:15.785 8 ERROR nova.conductor.manager     host_lists = self.query_client.select_destinations(
2026-03-02 03:19:15.785 8 ERROR nova.conductor.manager                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:19:15.785 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/client/query.py", line 41, in select_destinations
2026-03-02 03:19:15.785 8 ERROR nova.conductor.manager     return self.scheduler_rpcapi.select_destinations(context, spec_obj,
2026-03-02 03:19:15.785 8 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:19:15.785 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/rpcapi.py", line 160, in select_destinations
2026-03-02 03:19:15.785 8 ERROR nova.conductor.manager     return cctxt.call(ctxt, 'select_destinations', **msg_args)
2026-03-02 03:19:15.785 8 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:19:15.785 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/rpc/client.py", line 180, in call
2026-03-02 03:19:15.785 8 ERROR nova.conductor.manager     result = self.transport._send(
2026-03-02 03:19:15.785 8 ERROR nova.conductor.manager              ^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:19:15.785 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/transport.py", line 123, in _send
2026-03-02 03:19:15.785 8 ERROR nova.conductor.manager     return self._driver.send(target, ctxt, message,
2026-03-02 03:19:15.785 8 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:19:15.785 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 794, in send
2026-03-02 03:19:15.785 8 ERROR nova.conductor.manager     return self._send(target, ctxt, message, wait_for_reply, timeout,
2026-03-02 03:19:15.785 8 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:19:15.785 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 786, in _send
2026-03-02 03:19:15.785 8 ERROR nova.conductor.manager     raise result
2026-03-02 03:19:15.785 8 ERROR nova.conductor.manager nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
2026-03-02 03:19:15.785 8 ERROR nova.conductor.manager Traceback (most recent call last):
2026-03-02 03:19:15.785 8 ERROR nova.conductor.manager 
2026-03-02 03:19:15.785 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/rpc/server.py", line 269, in inner
2026-03-02 03:19:15.785 8 ERROR nova.conductor.manager     return func(*args, **kwargs)
2026-03-02 03:19:15.785 8 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:19:15.785 8 ERROR nova.conductor.manager 
2026-03-02 03:19:15.785 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/manager.py", line 255, in select_destinations
2026-03-02 03:19:15.785 8 ERROR nova.conductor.manager     raise exception.NoValidHost(reason="")
2026-03-02 03:19:15.785 8 ERROR nova.conductor.manager 
2026-03-02 03:19:15.785 8 ERROR nova.conductor.manager nova.exception.NoValidHost: No valid host was found. 
2026-03-02 03:19:15.785 8 ERROR nova.conductor.manager 
2026-03-02 03:19:15.785 8 ERROR nova.conductor.manager 
2026-03-02 03:19:15.890 8 WARNING nova.scheduler.utils [None req-0ce560f7-4995-4fd0-94fd-0c505cc76ba2 57c725d0a4d7404b81d6c44c879b05f7 45aca817945e4a1fb65dc0dbf0db474b - - 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. 
2026-03-02 03:19:15.891 8 WARNING nova.scheduler.utils [None req-0ce560f7-4995-4fd0-94fd-0c505cc76ba2 57c725d0a4d7404b81d6c44c879b05f7 45aca817945e4a1fb65dc0dbf0db474b - - default default] [instance: 062d3c29-4401-42ce-8378-067bd40354bf] Setting instance to ERROR state.: nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
2026-03-02 03:19:29.025 7 ERROR nova.conductor.manager [None req-4658a5df-c8cb-42d5-8a3e-8eea9578cdde 5cd8ec1e1ae64a1da91a291231a501dc 71c707b790bd4133a8d560079c0446cb - - 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.
2026-03-02 03:19:29.025 7 ERROR nova.conductor.manager Traceback (most recent call last):
2026-03-02 03:19:29.025 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
2026-03-02 03:19:29.025 7 ERROR nova.conductor.manager     host_lists = self._schedule_instances(context, request_specs[0],
2026-03-02 03:19:29.025 7 ERROR nova.conductor.manager                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:19:29.025 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/conductor/manager.py", line 942, in _schedule_instances
2026-03-02 03:19:29.025 7 ERROR nova.conductor.manager     host_lists = self.query_client.select_destinations(
2026-03-02 03:19:29.025 7 ERROR nova.conductor.manager                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:19:29.025 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/client/query.py", line 41, in select_destinations
2026-03-02 03:19:29.025 7 ERROR nova.conductor.manager     return self.scheduler_rpcapi.select_destinations(context, spec_obj,
2026-03-02 03:19:29.025 7 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:19:29.025 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/rpcapi.py", line 160, in select_destinations
2026-03-02 03:19:29.025 7 ERROR nova.conductor.manager     return cctxt.call(ctxt, 'select_destinations', **msg_args)
2026-03-02 03:19:29.025 7 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:19:29.025 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/rpc/client.py", line 180, in call
2026-03-02 03:19:29.025 7 ERROR nova.conductor.manager     result = self.transport._send(
2026-03-02 03:19:29.025 7 ERROR nova.conductor.manager              ^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:19:29.025 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/transport.py", line 123, in _send
2026-03-02 03:19:29.025 7 ERROR nova.conductor.manager     return self._driver.send(target, ctxt, message,
2026-03-02 03:19:29.025 7 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:19:29.025 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 794, in send
2026-03-02 03:19:29.025 7 ERROR nova.conductor.manager     return self._send(target, ctxt, message, wait_for_reply, timeout,
2026-03-02 03:19:29.025 7 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:19:29.025 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 786, in _send
2026-03-02 03:19:29.025 7 ERROR nova.conductor.manager     raise result
2026-03-02 03:19:29.025 7 ERROR nova.conductor.manager nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
2026-03-02 03:19:29.025 7 ERROR nova.conductor.manager Traceback (most recent call last):
2026-03-02 03:19:29.025 7 ERROR nova.conductor.manager 
2026-03-02 03:19:29.025 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/rpc/server.py", line 269, in inner
2026-03-02 03:19:29.025 7 ERROR nova.conductor.manager     return func(*args, **kwargs)
2026-03-02 03:19:29.025 7 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:19:29.025 7 ERROR nova.conductor.manager 
2026-03-02 03:19:29.025 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/manager.py", line 255, in select_destinations
2026-03-02 03:19:29.025 7 ERROR nova.conductor.manager     raise exception.NoValidHost(reason="")
2026-03-02 03:19:29.025 7 ERROR nova.conductor.manager 
2026-03-02 03:19:29.025 7 ERROR nova.conductor.manager nova.exception.NoValidHost: No valid host was found. 
2026-03-02 03:19:29.025 7 ERROR nova.conductor.manager 
2026-03-02 03:19:29.025 7 ERROR nova.conductor.manager 
2026-03-02 03:19:29.117 7 WARNING nova.scheduler.utils [None req-4658a5df-c8cb-42d5-8a3e-8eea9578cdde 5cd8ec1e1ae64a1da91a291231a501dc 71c707b790bd4133a8d560079c0446cb - - 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. 
2026-03-02 03:19:29.118 7 WARNING nova.scheduler.utils [None req-4658a5df-c8cb-42d5-8a3e-8eea9578cdde 5cd8ec1e1ae64a1da91a291231a501dc 71c707b790bd4133a8d560079c0446cb - - default default] [instance: 35cfbba1-df8b-4363-90a1-2cc0d2e4de9b] Setting instance to ERROR state.: nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
2026-03-02 03:19:41.268 8 ERROR nova.conductor.manager [None req-1585fc9f-44ae-4a17-b288-14623f46389e 0f7acd63b88a43d4bb37b4d635b9c0ac 7c45b9ca07e945b187409010f2adab39 - - 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.
2026-03-02 03:19:41.268 8 ERROR nova.conductor.manager Traceback (most recent call last):
2026-03-02 03:19:41.268 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
2026-03-02 03:19:41.268 8 ERROR nova.conductor.manager     host_lists = self._schedule_instances(context, request_specs[0],
2026-03-02 03:19:41.268 8 ERROR nova.conductor.manager                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:19:41.268 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/conductor/manager.py", line 942, in _schedule_instances
2026-03-02 03:19:41.268 8 ERROR nova.conductor.manager     host_lists = self.query_client.select_destinations(
2026-03-02 03:19:41.268 8 ERROR nova.conductor.manager                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:19:41.268 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/client/query.py", line 41, in select_destinations
2026-03-02 03:19:41.268 8 ERROR nova.conductor.manager     return self.scheduler_rpcapi.select_destinations(context, spec_obj,
2026-03-02 03:19:41.268 8 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:19:41.268 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/rpcapi.py", line 160, in select_destinations
2026-03-02 03:19:41.268 8 ERROR nova.conductor.manager     return cctxt.call(ctxt, 'select_destinations', **msg_args)
2026-03-02 03:19:41.268 8 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:19:41.268 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/rpc/client.py", line 180, in call
2026-03-02 03:19:41.268 8 ERROR nova.conductor.manager     result = self.transport._send(
2026-03-02 03:19:41.268 8 ERROR nova.conductor.manager              ^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:19:41.268 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/transport.py", line 123, in _send
2026-03-02 03:19:41.268 8 ERROR nova.conductor.manager     return self._driver.send(target, ctxt, message,
2026-03-02 03:19:41.268 8 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:19:41.268 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 794, in send
2026-03-02 03:19:41.268 8 ERROR nova.conductor.manager     return self._send(target, ctxt, message, wait_for_reply, timeout,
2026-03-02 03:19:41.268 8 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:19:41.268 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 786, in _send
2026-03-02 03:19:41.268 8 ERROR nova.conductor.manager     raise result
2026-03-02 03:19:41.268 8 ERROR nova.conductor.manager nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
2026-03-02 03:19:41.268 8 ERROR nova.conductor.manager Traceback (most recent call last):
2026-03-02 03:19:41.268 8 ERROR nova.conductor.manager 
2026-03-02 03:19:41.268 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/rpc/server.py", line 269, in inner
2026-03-02 03:19:41.268 8 ERROR nova.conductor.manager     return func(*args, **kwargs)
2026-03-02 03:19:41.268 8 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:19:41.268 8 ERROR nova.conductor.manager 
2026-03-02 03:19:41.268 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/manager.py", line 255, in select_destinations
2026-03-02 03:19:41.268 8 ERROR nova.conductor.manager     raise exception.NoValidHost(reason="")
2026-03-02 03:19:41.268 8 ERROR nova.conductor.manager 
2026-03-02 03:19:41.268 8 ERROR nova.conductor.manager nova.exception.NoValidHost: No valid host was found. 
2026-03-02 03:19:41.268 8 ERROR nova.conductor.manager 
2026-03-02 03:19:41.268 8 ERROR nova.conductor.manager 
2026-03-02 03:19:41.384 8 WARNING nova.scheduler.utils [None req-1585fc9f-44ae-4a17-b288-14623f46389e 0f7acd63b88a43d4bb37b4d635b9c0ac 7c45b9ca07e945b187409010f2adab39 - - 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. 
2026-03-02 03:19:41.385 8 WARNING nova.scheduler.utils [None req-1585fc9f-44ae-4a17-b288-14623f46389e 0f7acd63b88a43d4bb37b4d635b9c0ac 7c45b9ca07e945b187409010f2adab39 - - default default] [instance: 2f8ec092-06f0-4b20-bd93-4f0495f3c9d8] Setting instance to ERROR state.: nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
2026-03-02 03:19:47.215 7 ERROR nova.conductor.manager [None req-d0c8db54-203b-4fbe-a505-748357a10c61 7a8a411dd0b34ac79852dea2047d6fbe cd9c38fb8d2448f3b2e334e929b38868 - - 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.
2026-03-02 03:19:47.215 7 ERROR nova.conductor.manager Traceback (most recent call last):
2026-03-02 03:19:47.215 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
2026-03-02 03:19:47.215 7 ERROR nova.conductor.manager     host_lists = self._schedule_instances(context, request_specs[0],
2026-03-02 03:19:47.215 7 ERROR nova.conductor.manager                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:19:47.215 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/conductor/manager.py", line 942, in _schedule_instances
2026-03-02 03:19:47.215 7 ERROR nova.conductor.manager     host_lists = self.query_client.select_destinations(
2026-03-02 03:19:47.215 7 ERROR nova.conductor.manager                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:19:47.215 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/client/query.py", line 41, in select_destinations
2026-03-02 03:19:47.215 7 ERROR nova.conductor.manager     return self.scheduler_rpcapi.select_destinations(context, spec_obj,
2026-03-02 03:19:47.215 7 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:19:47.215 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/rpcapi.py", line 160, in select_destinations
2026-03-02 03:19:47.215 7 ERROR nova.conductor.manager     return cctxt.call(ctxt, 'select_destinations', **msg_args)
2026-03-02 03:19:47.215 7 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:19:47.215 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/rpc/client.py", line 180, in call
2026-03-02 03:19:47.215 7 ERROR nova.conductor.manager     result = self.transport._send(
2026-03-02 03:19:47.215 7 ERROR nova.conductor.manager              ^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:19:47.215 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/transport.py", line 123, in _send
2026-03-02 03:19:47.215 7 ERROR nova.conductor.manager     return self._driver.send(target, ctxt, message,
2026-03-02 03:19:47.215 7 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:19:47.215 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 794, in send
2026-03-02 03:19:47.215 7 ERROR nova.conductor.manager     return self._send(target, ctxt, message, wait_for_reply, timeout,
2026-03-02 03:19:47.215 7 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:19:47.215 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 786, in _send
2026-03-02 03:19:47.215 7 ERROR nova.conductor.manager     raise result
2026-03-02 03:19:47.215 7 ERROR nova.conductor.manager nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
2026-03-02 03:19:47.215 7 ERROR nova.conductor.manager Traceback (most recent call last):
2026-03-02 03:19:47.215 7 ERROR nova.conductor.manager 
2026-03-02 03:19:47.215 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/rpc/server.py", line 269, in inner
2026-03-02 03:19:47.215 7 ERROR nova.conductor.manager     return func(*args, **kwargs)
2026-03-02 03:19:47.215 7 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:19:47.215 7 ERROR nova.conductor.manager 
2026-03-02 03:19:47.215 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/manager.py", line 255, in select_destinations
2026-03-02 03:19:47.215 7 ERROR nova.conductor.manager     raise exception.NoValidHost(reason="")
2026-03-02 03:19:47.215 7 ERROR nova.conductor.manager 
2026-03-02 03:19:47.215 7 ERROR nova.conductor.manager nova.exception.NoValidHost: No valid host was found. 
2026-03-02 03:19:47.215 7 ERROR nova.conductor.manager 
2026-03-02 03:19:47.215 7 ERROR nova.conductor.manager 
2026-03-02 03:19:47.314 7 WARNING nova.scheduler.utils [None req-d0c8db54-203b-4fbe-a505-748357a10c61 7a8a411dd0b34ac79852dea2047d6fbe cd9c38fb8d2448f3b2e334e929b38868 - - 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. 
2026-03-02 03:19:47.314 7 WARNING nova.scheduler.utils [None req-d0c8db54-203b-4fbe-a505-748357a10c61 7a8a411dd0b34ac79852dea2047d6fbe cd9c38fb8d2448f3b2e334e929b38868 - - default default] [instance: eb07592b-7346-467d-a9d0-05bbedfd610c] Setting instance to ERROR state.: nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
2026-03-02 03:21:02.530 8 ERROR nova.conductor.manager [None req-e753e520-e1e3-4164-9031-a92447e4a8a2 51e9181acda147589bdefebafc04b356 7e4830eec64d489b84af9d7fa1ea8ff4 - - 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.
2026-03-02 03:21:02.530 8 ERROR nova.conductor.manager Traceback (most recent call last):
2026-03-02 03:21:02.530 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
2026-03-02 03:21:02.530 8 ERROR nova.conductor.manager     host_lists = self._schedule_instances(context, request_specs[0],
2026-03-02 03:21:02.530 8 ERROR nova.conductor.manager                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:21:02.530 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/conductor/manager.py", line 942, in _schedule_instances
2026-03-02 03:21:02.530 8 ERROR nova.conductor.manager     host_lists = self.query_client.select_destinations(
2026-03-02 03:21:02.530 8 ERROR nova.conductor.manager                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:21:02.530 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/client/query.py", line 41, in select_destinations
2026-03-02 03:21:02.530 8 ERROR nova.conductor.manager     return self.scheduler_rpcapi.select_destinations(context, spec_obj,
2026-03-02 03:21:02.530 8 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:21:02.530 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/rpcapi.py", line 160, in select_destinations
2026-03-02 03:21:02.530 8 ERROR nova.conductor.manager     return cctxt.call(ctxt, 'select_destinations', **msg_args)
2026-03-02 03:21:02.530 8 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:21:02.530 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/rpc/client.py", line 180, in call
2026-03-02 03:21:02.530 8 ERROR nova.conductor.manager     result = self.transport._send(
2026-03-02 03:21:02.530 8 ERROR nova.conductor.manager              ^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:21:02.530 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/transport.py", line 123, in _send
2026-03-02 03:21:02.530 8 ERROR nova.conductor.manager     return self._driver.send(target, ctxt, message,
2026-03-02 03:21:02.530 8 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:21:02.530 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 794, in send
2026-03-02 03:21:02.530 8 ERROR nova.conductor.manager     return self._send(target, ctxt, message, wait_for_reply, timeout,
2026-03-02 03:21:02.530 8 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:21:02.530 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 786, in _send
2026-03-02 03:21:02.530 8 ERROR nova.conductor.manager     raise result
2026-03-02 03:21:02.530 8 ERROR nova.conductor.manager nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
2026-03-02 03:21:02.530 8 ERROR nova.conductor.manager Traceback (most recent call last):
2026-03-02 03:21:02.530 8 ERROR nova.conductor.manager 
2026-03-02 03:21:02.530 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/rpc/server.py", line 269, in inner
2026-03-02 03:21:02.530 8 ERROR nova.conductor.manager     return func(*args, **kwargs)
2026-03-02 03:21:02.530 8 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:21:02.530 8 ERROR nova.conductor.manager 
2026-03-02 03:21:02.530 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/manager.py", line 255, in select_destinations
2026-03-02 03:21:02.530 8 ERROR nova.conductor.manager     raise exception.NoValidHost(reason="")
2026-03-02 03:21:02.530 8 ERROR nova.conductor.manager 
2026-03-02 03:21:02.530 8 ERROR nova.conductor.manager nova.exception.NoValidHost: No valid host was found. 
2026-03-02 03:21:02.530 8 ERROR nova.conductor.manager 
2026-03-02 03:21:02.530 8 ERROR nova.conductor.manager 
2026-03-02 03:21:02.663 8 WARNING nova.scheduler.utils [None req-e753e520-e1e3-4164-9031-a92447e4a8a2 51e9181acda147589bdefebafc04b356 7e4830eec64d489b84af9d7fa1ea8ff4 - - 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. 
2026-03-02 03:21:02.664 8 WARNING nova.scheduler.utils [None req-e753e520-e1e3-4164-9031-a92447e4a8a2 51e9181acda147589bdefebafc04b356 7e4830eec64d489b84af9d7fa1ea8ff4 - - default default] [instance: 791ca04e-e4e5-4799-bb5f-28d2df70a4ea] Setting instance to ERROR state.: nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
2026-03-02 03:22:01.313 7 ERROR nova.conductor.manager [None req-5cbd7536-06e2-48e6-84bf-2e48cd30d0d5 17b0962a692248569a0bc760ec043ae1 9809cb72f89f4d04a51707c76ead106d - - 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.
2026-03-02 03:22:01.313 7 ERROR nova.conductor.manager Traceback (most recent call last):
2026-03-02 03:22:01.313 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
2026-03-02 03:22:01.313 7 ERROR nova.conductor.manager     host_lists = self._schedule_instances(context, request_specs[0],
2026-03-02 03:22:01.313 7 ERROR nova.conductor.manager                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:22:01.313 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/conductor/manager.py", line 942, in _schedule_instances
2026-03-02 03:22:01.313 7 ERROR nova.conductor.manager     host_lists = self.query_client.select_destinations(
2026-03-02 03:22:01.313 7 ERROR nova.conductor.manager                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:22:01.313 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/client/query.py", line 41, in select_destinations
2026-03-02 03:22:01.313 7 ERROR nova.conductor.manager     return self.scheduler_rpcapi.select_destinations(context, spec_obj,
2026-03-02 03:22:01.313 7 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:22:01.313 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/rpcapi.py", line 160, in select_destinations
2026-03-02 03:22:01.313 7 ERROR nova.conductor.manager     return cctxt.call(ctxt, 'select_destinations', **msg_args)
2026-03-02 03:22:01.313 7 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:22:01.313 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/rpc/client.py", line 180, in call
2026-03-02 03:22:01.313 7 ERROR nova.conductor.manager     result = self.transport._send(
2026-03-02 03:22:01.313 7 ERROR nova.conductor.manager              ^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:22:01.313 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/transport.py", line 123, in _send
2026-03-02 03:22:01.313 7 ERROR nova.conductor.manager     return self._driver.send(target, ctxt, message,
2026-03-02 03:22:01.313 7 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:22:01.313 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 794, in send
2026-03-02 03:22:01.313 7 ERROR nova.conductor.manager     return self._send(target, ctxt, message, wait_for_reply, timeout,
2026-03-02 03:22:01.313 7 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:22:01.313 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 786, in _send
2026-03-02 03:22:01.313 7 ERROR nova.conductor.manager     raise result
2026-03-02 03:22:01.313 7 ERROR nova.conductor.manager nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
2026-03-02 03:22:01.313 7 ERROR nova.conductor.manager Traceback (most recent call last):
2026-03-02 03:22:01.313 7 ERROR nova.conductor.manager 
2026-03-02 03:22:01.313 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/rpc/server.py", line 269, in inner
2026-03-02 03:22:01.313 7 ERROR nova.conductor.manager     return func(*args, **kwargs)
2026-03-02 03:22:01.313 7 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:22:01.313 7 ERROR nova.conductor.manager 
2026-03-02 03:22:01.313 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/manager.py", line 255, in select_destinations
2026-03-02 03:22:01.313 7 ERROR nova.conductor.manager     raise exception.NoValidHost(reason="")
2026-03-02 03:22:01.313 7 ERROR nova.conductor.manager 
2026-03-02 03:22:01.313 7 ERROR nova.conductor.manager nova.exception.NoValidHost: No valid host was found. 
2026-03-02 03:22:01.313 7 ERROR nova.conductor.manager 
2026-03-02 03:22:01.313 7 ERROR nova.conductor.manager 
2026-03-02 03:22:01.415 7 WARNING nova.scheduler.utils [None req-5cbd7536-06e2-48e6-84bf-2e48cd30d0d5 17b0962a692248569a0bc760ec043ae1 9809cb72f89f4d04a51707c76ead106d - - 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. 
2026-03-02 03:22:01.416 7 WARNING nova.scheduler.utils [None req-5cbd7536-06e2-48e6-84bf-2e48cd30d0d5 17b0962a692248569a0bc760ec043ae1 9809cb72f89f4d04a51707c76ead106d - - default default] [instance: bd4326e6-b406-4554-9f1a-5a446049841f] Setting instance to ERROR state.: nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
2026-03-02 03:22:08.581 8 ERROR nova.conductor.manager [None req-84990214-9655-45a9-81a2-9832ac2c15e5 216e5bdc3a5641a0a002a1f5207593ea 870996039d304d5a9c6b54c724adc11e - - 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.
2026-03-02 03:22:08.581 8 ERROR nova.conductor.manager Traceback (most recent call last):
2026-03-02 03:22:08.581 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
2026-03-02 03:22:08.581 8 ERROR nova.conductor.manager     host_lists = self._schedule_instances(context, request_specs[0],
2026-03-02 03:22:08.581 8 ERROR nova.conductor.manager                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:22:08.581 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/conductor/manager.py", line 942, in _schedule_instances
2026-03-02 03:22:08.581 8 ERROR nova.conductor.manager     host_lists = self.query_client.select_destinations(
2026-03-02 03:22:08.581 8 ERROR nova.conductor.manager                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:22:08.581 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/client/query.py", line 41, in select_destinations
2026-03-02 03:22:08.581 8 ERROR nova.conductor.manager     return self.scheduler_rpcapi.select_destinations(context, spec_obj,
2026-03-02 03:22:08.581 8 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:22:08.581 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/rpcapi.py", line 160, in select_destinations
2026-03-02 03:22:08.581 8 ERROR nova.conductor.manager     return cctxt.call(ctxt, 'select_destinations', **msg_args)
2026-03-02 03:22:08.581 8 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:22:08.581 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/rpc/client.py", line 180, in call
2026-03-02 03:22:08.581 8 ERROR nova.conductor.manager     result = self.transport._send(
2026-03-02 03:22:08.581 8 ERROR nova.conductor.manager              ^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:22:08.581 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/transport.py", line 123, in _send
2026-03-02 03:22:08.581 8 ERROR nova.conductor.manager     return self._driver.send(target, ctxt, message,
2026-03-02 03:22:08.581 8 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:22:08.581 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 794, in send
2026-03-02 03:22:08.581 8 ERROR nova.conductor.manager     return self._send(target, ctxt, message, wait_for_reply, timeout,
2026-03-02 03:22:08.581 8 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:22:08.581 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 786, in _send
2026-03-02 03:22:08.581 8 ERROR nova.conductor.manager     raise result
2026-03-02 03:22:08.581 8 ERROR nova.conductor.manager nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
2026-03-02 03:22:08.581 8 ERROR nova.conductor.manager Traceback (most recent call last):
2026-03-02 03:22:08.581 8 ERROR nova.conductor.manager 
2026-03-02 03:22:08.581 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/rpc/server.py", line 269, in inner
2026-03-02 03:22:08.581 8 ERROR nova.conductor.manager     return func(*args, **kwargs)
2026-03-02 03:22:08.581 8 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:22:08.581 8 ERROR nova.conductor.manager 
2026-03-02 03:22:08.581 8 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/manager.py", line 255, in select_destinations
2026-03-02 03:22:08.581 8 ERROR nova.conductor.manager     raise exception.NoValidHost(reason="")
2026-03-02 03:22:08.581 8 ERROR nova.conductor.manager 
2026-03-02 03:22:08.581 8 ERROR nova.conductor.manager nova.exception.NoValidHost: No valid host was found. 
2026-03-02 03:22:08.581 8 ERROR nova.conductor.manager 
2026-03-02 03:22:08.581 8 ERROR nova.conductor.manager 
2026-03-02 03:22:08.693 8 WARNING nova.scheduler.utils [None req-84990214-9655-45a9-81a2-9832ac2c15e5 216e5bdc3a5641a0a002a1f5207593ea 870996039d304d5a9c6b54c724adc11e - - 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. 
2026-03-02 03:22:08.694 8 WARNING nova.scheduler.utils [None req-84990214-9655-45a9-81a2-9832ac2c15e5 216e5bdc3a5641a0a002a1f5207593ea 870996039d304d5a9c6b54c724adc11e - - default default] [instance: 81d7d092-2897-449e-a043-69d7d8d3f29b] Setting instance to ERROR state.: nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
2026-03-02 03:22:43.740 7 ERROR nova.conductor.manager [None req-3379bb42-71fc-4fc5-92fb-cfe54cd76943 4ba926ddf11849008c323f76f493ed81 2e98847ef907472f99acfd9dfa81b8d9 - - 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.
2026-03-02 03:22:43.740 7 ERROR nova.conductor.manager Traceback (most recent call last):
2026-03-02 03:22:43.740 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
2026-03-02 03:22:43.740 7 ERROR nova.conductor.manager     host_lists = self._schedule_instances(context, request_specs[0],
2026-03-02 03:22:43.740 7 ERROR nova.conductor.manager                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:22:43.740 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/conductor/manager.py", line 942, in _schedule_instances
2026-03-02 03:22:43.740 7 ERROR nova.conductor.manager     host_lists = self.query_client.select_destinations(
2026-03-02 03:22:43.740 7 ERROR nova.conductor.manager                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:22:43.740 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/client/query.py", line 41, in select_destinations
2026-03-02 03:22:43.740 7 ERROR nova.conductor.manager     return self.scheduler_rpcapi.select_destinations(context, spec_obj,
2026-03-02 03:22:43.740 7 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:22:43.740 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/rpcapi.py", line 160, in select_destinations
2026-03-02 03:22:43.740 7 ERROR nova.conductor.manager     return cctxt.call(ctxt, 'select_destinations', **msg_args)
2026-03-02 03:22:43.740 7 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:22:43.740 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/rpc/client.py", line 180, in call
2026-03-02 03:22:43.740 7 ERROR nova.conductor.manager     result = self.transport._send(
2026-03-02 03:22:43.740 7 ERROR nova.conductor.manager              ^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:22:43.740 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/transport.py", line 123, in _send
2026-03-02 03:22:43.740 7 ERROR nova.conductor.manager     return self._driver.send(target, ctxt, message,
2026-03-02 03:22:43.740 7 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:22:43.740 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 794, in send
2026-03-02 03:22:43.740 7 ERROR nova.conductor.manager     return self._send(target, ctxt, message, wait_for_reply, timeout,
2026-03-02 03:22:43.740 7 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:22:43.740 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 786, in _send
2026-03-02 03:22:43.740 7 ERROR nova.conductor.manager     raise result
2026-03-02 03:22:43.740 7 ERROR nova.conductor.manager nova.exception_Remote.NoValidHost_Remote: No valid host was found. 
2026-03-02 03:22:43.740 7 ERROR nova.conductor.manager Traceback (most recent call last):
2026-03-02 03:22:43.740 7 ERROR nova.conductor.manager 
2026-03-02 03:22:43.740 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/oslo_messaging/rpc/server.py", line 269, in inner
2026-03-02 03:22:43.740 7 ERROR nova.conductor.manager     return func(*args, **kwargs)
2026-03-02 03:22:43.740 7 ERROR nova.conductor.manager            ^^^^^^^^^^^^^^^^^^^^^
2026-03-02 03:22:43.740 7 ERROR nova.conductor.manager 
2026-03-02 03:22:43.740 7 ERROR nova.conductor.manager   File "/var/lib/openstack/lib/python3.12/site-packages/nova/scheduler/manager.py", line 255, in select_destinations
2026-03-02 03:22:43.740 7 ERROR nova.conductor.manager     raise exception.NoValidHost(reason="")
2026-03-02 03:22:43.740 7 ERROR nova.conductor.manager 
2026-03-02 03:22:43.740 7 ERROR nova.conductor.manager nova.exception.NoValidHost: No valid host was found. 
2026-03-02 03:22:43.740 7 ERROR nova.conductor.manager 
2026-03-02 03:22:43.740 7 ERROR nova.conductor.manager 
2026-03-02 03:22:43.825 7 WARNING nova.scheduler.utils [None req-3379bb42-71fc-4fc5-92fb-cfe54cd76943 4ba926ddf11849008c323f76f493ed81 2e98847ef907472f99acfd9dfa81b8d9 - - 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. 
2026-03-02 03:22:43.826 7 WARNING nova.scheduler.utils [None req-3379bb42-71fc-4fc5-92fb-cfe54cd76943 4ba926ddf11849008c323f76f493ed81 2e98847ef907472f99acfd9dfa81b8d9 - - default default] [instance: 8fa08335-f62b-466f-9dc2-267142693e0c] Setting instance to ERROR state.: nova.exception_Remote.NoValidHost_Remote: No valid host was found.