Hello. I deployed OpenStack 2025.1 Master with Kolla-Ansible, but the compute nodes cannot register with Nova. Error: Cannot update service status on host "compute05" due to an unexpected exception.: oslo_messaging.exceptions.MessagingTimeout: Timed out waiting for a reply to message ID 3dad7dbe8ea9429c83958b98bccc7094 2025-03-23 10:31:26.974 7 ERROR nova.virt.libvirt.driver Traceback (most recent call last): 2025-03-23 10:31:26.974 7 ERROR nova.virt.libvirt.driver File "/var/lib/kolla/venv/lib/python3.12/site-packages/nova/virt/libvirt/driver.py", line 5687, in _set_host_enabled 2025-03-23 10:31:26.974 7 ERROR nova.virt.libvirt.driver service = objects.Service.get_by_compute_host(ctx, CONF.host) 2025-03-23 10:31:26.974 7 ERROR nova.virt.libvirt.driver ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2025-03-23 10:31:26.974 7 ERROR nova.virt.libvirt.driver File "/var/lib/kolla/venv/lib/python3.12/site-packages/oslo_versionedobjects/base.py", line 175, in wrapper 2025-03-23 10:31:26.974 7 ERROR nova.virt.libvirt.driver result = cls.indirection_api.object_class_action_versions( 2025-03-23 10:31:26.974 7 ERROR nova.virt.libvirt.driver ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2025-03-23 10:31:26.974 7 ERROR nova.virt.libvirt.driver File "/var/lib/kolla/venv/lib/python3.12/site-packages/nova/conductor/rpcapi.py", line 240, in object_class_action_versions 2025-03-23 10:31:26.974 7 ERROR nova.virt.libvirt.driver return cctxt.call(context, 'object_class_action_versions', 2025-03-23 10:31:26.974 7 ERROR nova.virt.libvirt.driver ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2025-03-23 10:31:26.974 7 ERROR nova.virt.libvirt.driver File "/var/lib/kolla/venv/lib/python3.12/site-packages/oslo_messaging/rpc/client.py", line 190, in call 2025-03-23 10:31:26.974 7 ERROR nova.virt.libvirt.driver result = self.transport._send( 2025-03-23 10:31:26.974 7 ERROR nova.virt.libvirt.driver ^^^^^^^^^^^^^^^^^^^^^ 2025-03-23 10:31:26.974 7 ERROR nova.virt.libvirt.driver File "/var/lib/kolla/venv/lib/python3.12/site-packages/oslo_messaging/transport.py", line 123, in _send 2025-03-23 10:31:26.974 7 ERROR nova.virt.libvirt.driver return self._driver.send(target, ctxt, message, 2025-03-23 10:31:26.974 7 ERROR nova.virt.libvirt.driver ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2025-03-23 10:31:26.974 7 ERROR nova.virt.libvirt.driver File "/var/lib/kolla/venv/lib/python3.12/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 800, in send 2025-03-23 10:31:26.974 7 ERROR nova.virt.libvirt.driver return self._send(target, ctxt, message, wait_for_reply, timeout, 2025-03-23 10:31:26.974 7 ERROR nova.virt.libvirt.driver ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2025-03-23 10:31:26.974 7 ERROR nova.virt.libvirt.driver File "/var/lib/kolla/venv/lib/python3.12/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 789, in _send 2025-03-23 10:31:26.974 7 ERROR nova.virt.libvirt.driver result = self._waiter.wait(msg_id, timeout, 2025-03-23 10:31:26.974 7 ERROR nova.virt.libvirt.driver ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2025-03-23 10:31:26.974 7 ERROR nova.virt.libvirt.driver File "/var/lib/kolla/venv/lib/python3.12/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 654, in wait 2025-03-23 10:31:26.974 7 ERROR nova.virt.libvirt.driver message = self.waiters.get(msg_id, timeout=timeout) 2025-03-23 10:31:26.974 7 ERROR nova.virt.libvirt.driver ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2025-03-23 10:31:26.974 7 ERROR nova.virt.libvirt.driver File "/var/lib/kolla/venv/lib/python3.12/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 520, in get 2025-03-23 10:31:26.974 7 ERROR nova.virt.libvirt.driver raise oslo_messaging.MessagingTimeout( 2025-03-23 10:31:26.974 7 ERROR nova.virt.libvirt.driver oslo_messaging.exceptions.MessagingTimeout: Timed out waiting for a reply to message ID 3dad7dbe8ea9429c83958b98bccc7094 2025-03-23 10:31:26.974 7 ERROR nova.virt.libvirt.driver All services are in a "down" state, but this issue only occurs when using a three-controller cluster. When I use a single controller, everything works fine. My Env: OS: Ubuntu 22.04 OpenStack Version: 2025.1 Master Deployment Tool: Kolla-Ansible 19 Thank you. Nguyen Huu Khoi