+ exec nova-conductor --config-file /etc/nova/nova.conf 2026-07-13 20:34:16.087 1 INFO nova.utils [None req-d5e23e28-1cdc-4f32-b990-f41ce9d7a353 - - - - - -] The cell worker thread pool MainProcess.cell_worker is initialized 2026-07-13 20:34:16.270 1 INFO nova.utils [None req-d5e23e28-1cdc-4f32-b990-f41ce9d7a353 - - - - - -] The cell worker thread pool MainProcess.cell_worker is shutting down 2026-07-13 20:34:17.270 1 INFO nova.utils [None req-d5e23e28-1cdc-4f32-b990-f41ce9d7a353 - - - - - -] The cell worker thread pool MainProcess.cell_worker is closed 2026-07-13 20:34:17.272 1 WARNING oslo_service.backend._threading.service [None req-d5e23e28-1cdc-4f32-b990-f41ce9d7a353 - - - - - -] Service Service is not picklable with spawn; falling back to fork. Please make the service spawn-safe to avoid this fallback. 2026-07-13 20:34:17.279 1 WARNING oslo_config.cfg [None req-d5e23e28-1cdc-4f32-b990-f41ce9d7a353 - - - - - -] 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. 2026-07-13 20:34:17.329 10 INFO nova.service [-] Starting conductor node (version 33.1.0) 2026-07-13 20:34:17.345 12 INFO nova.service [-] Starting conductor node (version 33.1.0) 2026-07-13 21:11:47.998 10 INFO nova.utils [None req-9c448ff8-8f23-4ad9-bfb8-012e426f2f32 9b92040b28d84f6eb964c72b8e758858 2b1a2f45664548c7998dd000daf29efd - - default default] The cell worker thread pool ForkProcess-1.cell_worker is initialized 2026-07-13 21:11:48.195 10 INFO nova.compute.rpcapi [None req-d62e02a9-0318-4486-944f-b3bc7ddfb247 - - - - - -] Automatically selected compute RPC version 6.5 from minimum service version 72 2026-07-13 21:12:04.723 12 INFO nova.utils [None req-9f2bbb4d-5476-4ddc-bdbc-a0f05354145e 387a89c2bdbe47069eee70158ed70077 f14f409d86a0497fbdb0aa1aa0c89d10 - - default default] The cell worker thread pool ForkProcess-2.cell_worker is initialized 2026-07-13 21:12:04.850 12 INFO nova.compute.rpcapi [None req-1fde72bb-5ec0-4838-b8af-05a04d787f62 - - - - - -] Automatically selected compute RPC version 6.5 from minimum service version 72 2026-07-13 21:12:06.498 10 ERROR nova.scheduler.utils [None req-9c448ff8-8f23-4ad9-bfb8-012e426f2f32 9b92040b28d84f6eb964c72b8e758858 2b1a2f45664548c7998dd000daf29efd - - default default] [instance: 730c1b98-3f89-408d-8d32-f63c1329e1a6] Error from last host: instance (node instance): ['Traceback (most recent call last):\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/os_vif/__init__.py", line 84, in plug\n plugin = _EXT_MANAGER[plugin_name].obj\n ~~~~~~~~~~~~^^^^^^^^^^^^^\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/stevedore/extension.py", line 452, in __getitem__\n return self._extensions_by_name[name]\n ~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^\n', "KeyError: 'ovs'\n", '\nDuring handling of the above exception, another exception occurred:\n\n', 'Traceback (most recent call last):\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/vif.py", line 755, in _plug_os_vif\n os_vif.plug(vif, instance_info)\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/os_vif/__init__.py", line 86, in plug\n raise os_vif.exception.NoMatchingPlugin(plugin_name=plugin_name)\n', 'os_vif.exception.NoMatchingPlugin: No VIF plugin was found with the name ovs\n', '\nDuring handling of the above exception, another exception occurred:\n\n', 'Traceback (most recent call last):\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/compute/manager.py", line 2821, in _build_and_run_instance\n self.driver.spawn(context, instance, image_meta,\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/driver.py", line 4879, in spawn\n self._create_guest_with_network(\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/driver.py", line 8471, in _create_guest_with_network\n with excutils.save_and_reraise_exception():\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/oslo_utils/excutils.py", line 266, in __exit__\n self.force_reraise()\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/oslo_utils/excutils.py", line 232, in force_reraise\n raise self.value\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/driver.py", line 8444, in _create_guest_with_network\n self.plug_vifs(instance, network_info)\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/driver.py", line 1511, in plug_vifs\n self.vif_driver.plug(instance, vif)\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/vif.py", line 779, in plug\n self._plug_os_vif(instance, vif_obj)\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/vif.py", line 759, in _plug_os_vif\n raise exception.InternalError(msg)\n', 'nova.exception.InternalError: Failure running os_vif plugin plug method: No VIF plugin was found with the name ovs\n', '\nDuring handling of the above exception, another exception occurred:\n\n', 'Traceback (most recent call last):\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/compute/manager.py", line 2636, in _do_build_and_run_instance\n self._build_and_run_instance(context, instance, image,\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/compute/manager.py", line 2929, in _build_and_run_instance\n raise exception.RescheduledException(\n', 'nova.exception.RescheduledException: Build of instance 730c1b98-3f89-408d-8d32-f63c1329e1a6 was re-scheduled: Failure running os_vif plugin plug method: No VIF plugin was found with the name ovs\n'] 2026-07-13 21:12:06.499 10 WARNING nova.scheduler.utils [None req-9c448ff8-8f23-4ad9-bfb8-012e426f2f32 9b92040b28d84f6eb964c72b8e758858 2b1a2f45664548c7998dd000daf29efd - - default default] Failed to compute_task_build_instances: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 730c1b98-3f89-408d-8d32-f63c1329e1a6.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 730c1b98-3f89-408d-8d32-f63c1329e1a6. 2026-07-13 21:12:06.499 10 WARNING nova.scheduler.utils [None req-9c448ff8-8f23-4ad9-bfb8-012e426f2f32 9b92040b28d84f6eb964c72b8e758858 2b1a2f45664548c7998dd000daf29efd - - default default] [instance: 730c1b98-3f89-408d-8d32-f63c1329e1a6] Setting instance to ERROR state.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 730c1b98-3f89-408d-8d32-f63c1329e1a6. 2026-07-13 21:12:06.584 10 WARNING neutronclient.v2_0.client [None req-9c448ff8-8f23-4ad9-bfb8-012e426f2f32 9b92040b28d84f6eb964c72b8e758858 2b1a2f45664548c7998dd000daf29efd - - default default] The python binding code in neutronclient is deprecated in favor of OpenstackSDK, please use that as this will be removed in a future release.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 730c1b98-3f89-408d-8d32-f63c1329e1a6. 2026-07-13 21:12:06.981 10 WARNING neutronclient.v2_0.client [None req-9c448ff8-8f23-4ad9-bfb8-012e426f2f32 9b92040b28d84f6eb964c72b8e758858 2b1a2f45664548c7998dd000daf29efd - - default default] The python binding code in neutronclient is deprecated in favor of OpenstackSDK, please use that as this will be removed in a future release.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 730c1b98-3f89-408d-8d32-f63c1329e1a6. 2026-07-13 21:12:14.524 12 ERROR nova.scheduler.utils [None req-e5f24892-1aec-4eba-b17a-f995be1de612 0b2608c66be94db1b808f25f147562ce a3abd5a53b6a425fb46fd8e0fe4f1b9b - - default default] [instance: 11129b33-340b-498a-a4fe-51d4fe764ea0] Error from last host: instance (node instance): ['Traceback (most recent call last):\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/os_vif/__init__.py", line 84, in plug\n plugin = _EXT_MANAGER[plugin_name].obj\n ~~~~~~~~~~~~^^^^^^^^^^^^^\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/stevedore/extension.py", line 452, in __getitem__\n return self._extensions_by_name[name]\n ~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^\n', "KeyError: 'ovs'\n", '\nDuring handling of the above exception, another exception occurred:\n\n', 'Traceback (most recent call last):\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/vif.py", line 755, in _plug_os_vif\n os_vif.plug(vif, instance_info)\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/os_vif/__init__.py", line 86, in plug\n raise os_vif.exception.NoMatchingPlugin(plugin_name=plugin_name)\n', 'os_vif.exception.NoMatchingPlugin: No VIF plugin was found with the name ovs\n', '\nDuring handling of the above exception, another exception occurred:\n\n', 'Traceback (most recent call last):\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/compute/manager.py", line 2821, in _build_and_run_instance\n self.driver.spawn(context, instance, image_meta,\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/driver.py", line 4879, in spawn\n self._create_guest_with_network(\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/driver.py", line 8471, in _create_guest_with_network\n with excutils.save_and_reraise_exception():\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/oslo_utils/excutils.py", line 266, in __exit__\n self.force_reraise()\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/oslo_utils/excutils.py", line 232, in force_reraise\n raise self.value\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/driver.py", line 8444, in _create_guest_with_network\n self.plug_vifs(instance, network_info)\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/driver.py", line 1511, in plug_vifs\n self.vif_driver.plug(instance, vif)\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/vif.py", line 779, in plug\n self._plug_os_vif(instance, vif_obj)\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/vif.py", line 759, in _plug_os_vif\n raise exception.InternalError(msg)\n', 'nova.exception.InternalError: Failure running os_vif plugin plug method: No VIF plugin was found with the name ovs\n', '\nDuring handling of the above exception, another exception occurred:\n\n', 'Traceback (most recent call last):\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/compute/manager.py", line 2636, in _do_build_and_run_instance\n self._build_and_run_instance(context, instance, image,\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/compute/manager.py", line 2929, in _build_and_run_instance\n raise exception.RescheduledException(\n', 'nova.exception.RescheduledException: Build of instance 11129b33-340b-498a-a4fe-51d4fe764ea0 was re-scheduled: Failure running os_vif plugin plug method: No VIF plugin was found with the name ovs\n'] 2026-07-13 21:12:14.526 12 WARNING nova.scheduler.utils [None req-e5f24892-1aec-4eba-b17a-f995be1de612 0b2608c66be94db1b808f25f147562ce a3abd5a53b6a425fb46fd8e0fe4f1b9b - - default default] Failed to compute_task_build_instances: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 11129b33-340b-498a-a4fe-51d4fe764ea0.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 11129b33-340b-498a-a4fe-51d4fe764ea0. 2026-07-13 21:12:14.526 12 WARNING nova.scheduler.utils [None req-e5f24892-1aec-4eba-b17a-f995be1de612 0b2608c66be94db1b808f25f147562ce a3abd5a53b6a425fb46fd8e0fe4f1b9b - - default default] [instance: 11129b33-340b-498a-a4fe-51d4fe764ea0] Setting instance to ERROR state.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 11129b33-340b-498a-a4fe-51d4fe764ea0. 2026-07-13 21:12:14.612 12 WARNING neutronclient.v2_0.client [None req-e5f24892-1aec-4eba-b17a-f995be1de612 0b2608c66be94db1b808f25f147562ce a3abd5a53b6a425fb46fd8e0fe4f1b9b - - default default] The python binding code in neutronclient is deprecated in favor of OpenstackSDK, please use that as this will be removed in a future release.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 11129b33-340b-498a-a4fe-51d4fe764ea0. 2026-07-13 21:12:15.026 12 WARNING neutronclient.v2_0.client [None req-e5f24892-1aec-4eba-b17a-f995be1de612 0b2608c66be94db1b808f25f147562ce a3abd5a53b6a425fb46fd8e0fe4f1b9b - - default default] The python binding code in neutronclient is deprecated in favor of OpenstackSDK, please use that as this will be removed in a future release.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 11129b33-340b-498a-a4fe-51d4fe764ea0. 2026-07-13 21:12:18.732 12 ERROR nova.scheduler.utils [None req-01f8a1d7-c917-459b-8552-57357515d885 fd81ec26f5e04aba93a8c08e1697e2f9 1141c5cf7b6746ffb07d1db404b787cf - - default default] [instance: fe5851f7-10c0-40e9-9361-884aef4d80b5] Error from last host: instance (node instance): ['Traceback (most recent call last):\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/os_vif/__init__.py", line 84, in plug\n plugin = _EXT_MANAGER[plugin_name].obj\n ~~~~~~~~~~~~^^^^^^^^^^^^^\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/stevedore/extension.py", line 452, in __getitem__\n return self._extensions_by_name[name]\n ~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^\n', "KeyError: 'ovs'\n", '\nDuring handling of the above exception, another exception occurred:\n\n', 'Traceback (most recent call last):\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/vif.py", line 755, in _plug_os_vif\n os_vif.plug(vif, instance_info)\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/os_vif/__init__.py", line 86, in plug\n raise os_vif.exception.NoMatchingPlugin(plugin_name=plugin_name)\n', 'os_vif.exception.NoMatchingPlugin: No VIF plugin was found with the name ovs\n', '\nDuring handling of the above exception, another exception occurred:\n\n', 'Traceback (most recent call last):\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/compute/manager.py", line 2821, in _build_and_run_instance\n self.driver.spawn(context, instance, image_meta,\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/driver.py", line 4879, in spawn\n self._create_guest_with_network(\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/driver.py", line 8471, in _create_guest_with_network\n with excutils.save_and_reraise_exception():\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/oslo_utils/excutils.py", line 266, in __exit__\n self.force_reraise()\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/oslo_utils/excutils.py", line 232, in force_reraise\n raise self.value\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/driver.py", line 8444, in _create_guest_with_network\n self.plug_vifs(instance, network_info)\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/driver.py", line 1511, in plug_vifs\n self.vif_driver.plug(instance, vif)\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/vif.py", line 779, in plug\n self._plug_os_vif(instance, vif_obj)\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/vif.py", line 759, in _plug_os_vif\n raise exception.InternalError(msg)\n', 'nova.exception.InternalError: Failure running os_vif plugin plug method: No VIF plugin was found with the name ovs\n', '\nDuring handling of the above exception, another exception occurred:\n\n', 'Traceback (most recent call last):\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/compute/manager.py", line 2636, in _do_build_and_run_instance\n self._build_and_run_instance(context, instance, image,\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/compute/manager.py", line 2929, in _build_and_run_instance\n raise exception.RescheduledException(\n', 'nova.exception.RescheduledException: Build of instance fe5851f7-10c0-40e9-9361-884aef4d80b5 was re-scheduled: Failure running os_vif plugin plug method: No VIF plugin was found with the name ovs\n'] 2026-07-13 21:12:18.734 12 WARNING nova.scheduler.utils [None req-01f8a1d7-c917-459b-8552-57357515d885 fd81ec26f5e04aba93a8c08e1697e2f9 1141c5cf7b6746ffb07d1db404b787cf - - default default] Failed to compute_task_build_instances: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance fe5851f7-10c0-40e9-9361-884aef4d80b5.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance fe5851f7-10c0-40e9-9361-884aef4d80b5. 2026-07-13 21:12:18.735 12 WARNING nova.scheduler.utils [None req-01f8a1d7-c917-459b-8552-57357515d885 fd81ec26f5e04aba93a8c08e1697e2f9 1141c5cf7b6746ffb07d1db404b787cf - - default default] [instance: fe5851f7-10c0-40e9-9361-884aef4d80b5] Setting instance to ERROR state.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance fe5851f7-10c0-40e9-9361-884aef4d80b5. 2026-07-13 21:12:18.786 12 WARNING neutronclient.v2_0.client [None req-01f8a1d7-c917-459b-8552-57357515d885 fd81ec26f5e04aba93a8c08e1697e2f9 1141c5cf7b6746ffb07d1db404b787cf - - default default] The python binding code in neutronclient is deprecated in favor of OpenstackSDK, please use that as this will be removed in a future release.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance fe5851f7-10c0-40e9-9361-884aef4d80b5. 2026-07-13 21:12:19.224 12 WARNING neutronclient.v2_0.client [None req-01f8a1d7-c917-459b-8552-57357515d885 fd81ec26f5e04aba93a8c08e1697e2f9 1141c5cf7b6746ffb07d1db404b787cf - - default default] The python binding code in neutronclient is deprecated in favor of OpenstackSDK, please use that as this will be removed in a future release.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance fe5851f7-10c0-40e9-9361-884aef4d80b5. 2026-07-13 21:12:21.535 10 ERROR nova.scheduler.utils [None req-9f2bbb4d-5476-4ddc-bdbc-a0f05354145e 387a89c2bdbe47069eee70158ed70077 f14f409d86a0497fbdb0aa1aa0c89d10 - - default default] [instance: 4fdbbb6f-b562-4c78-a6de-8fbc32d21fbb] Error from last host: instance (node instance): ['Traceback (most recent call last):\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/os_vif/__init__.py", line 84, in plug\n plugin = _EXT_MANAGER[plugin_name].obj\n ~~~~~~~~~~~~^^^^^^^^^^^^^\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/stevedore/extension.py", line 452, in __getitem__\n return self._extensions_by_name[name]\n ~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^\n', "KeyError: 'ovs'\n", '\nDuring handling of the above exception, another exception occurred:\n\n', 'Traceback (most recent call last):\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/vif.py", line 755, in _plug_os_vif\n os_vif.plug(vif, instance_info)\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/os_vif/__init__.py", line 86, in plug\n raise os_vif.exception.NoMatchingPlugin(plugin_name=plugin_name)\n', 'os_vif.exception.NoMatchingPlugin: No VIF plugin was found with the name ovs\n', '\nDuring handling of the above exception, another exception occurred:\n\n', 'Traceback (most recent call last):\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/compute/manager.py", line 2821, in _build_and_run_instance\n self.driver.spawn(context, instance, image_meta,\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/driver.py", line 4879, in spawn\n self._create_guest_with_network(\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/driver.py", line 8471, in _create_guest_with_network\n with excutils.save_and_reraise_exception():\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/oslo_utils/excutils.py", line 266, in __exit__\n self.force_reraise()\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/oslo_utils/excutils.py", line 232, in force_reraise\n raise self.value\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/driver.py", line 8444, in _create_guest_with_network\n self.plug_vifs(instance, network_info)\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/driver.py", line 1511, in plug_vifs\n self.vif_driver.plug(instance, vif)\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/vif.py", line 779, in plug\n self._plug_os_vif(instance, vif_obj)\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/vif.py", line 759, in _plug_os_vif\n raise exception.InternalError(msg)\n', 'nova.exception.InternalError: Failure running os_vif plugin plug method: No VIF plugin was found with the name ovs\n', '\nDuring handling of the above exception, another exception occurred:\n\n', 'Traceback (most recent call last):\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/compute/manager.py", line 2636, in _do_build_and_run_instance\n self._build_and_run_instance(context, instance, image,\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/compute/manager.py", line 2929, in _build_and_run_instance\n raise exception.RescheduledException(\n', 'nova.exception.RescheduledException: Build of instance 4fdbbb6f-b562-4c78-a6de-8fbc32d21fbb was re-scheduled: Failure running os_vif plugin plug method: No VIF plugin was found with the name ovs\n'] 2026-07-13 21:12:21.536 10 WARNING nova.scheduler.utils [None req-9f2bbb4d-5476-4ddc-bdbc-a0f05354145e 387a89c2bdbe47069eee70158ed70077 f14f409d86a0497fbdb0aa1aa0c89d10 - - default default] Failed to compute_task_build_instances: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 4fdbbb6f-b562-4c78-a6de-8fbc32d21fbb.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 4fdbbb6f-b562-4c78-a6de-8fbc32d21fbb. 2026-07-13 21:12:21.537 10 WARNING nova.scheduler.utils [None req-9f2bbb4d-5476-4ddc-bdbc-a0f05354145e 387a89c2bdbe47069eee70158ed70077 f14f409d86a0497fbdb0aa1aa0c89d10 - - default default] [instance: 4fdbbb6f-b562-4c78-a6de-8fbc32d21fbb] Setting instance to ERROR state.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 4fdbbb6f-b562-4c78-a6de-8fbc32d21fbb. 2026-07-13 21:12:21.593 10 WARNING neutronclient.v2_0.client [None req-9f2bbb4d-5476-4ddc-bdbc-a0f05354145e 387a89c2bdbe47069eee70158ed70077 f14f409d86a0497fbdb0aa1aa0c89d10 - - default default] The python binding code in neutronclient is deprecated in favor of OpenstackSDK, please use that as this will be removed in a future release.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 4fdbbb6f-b562-4c78-a6de-8fbc32d21fbb. 2026-07-13 21:12:21.658 10 WARNING neutronclient.v2_0.client [None req-9f2bbb4d-5476-4ddc-bdbc-a0f05354145e 387a89c2bdbe47069eee70158ed70077 f14f409d86a0497fbdb0aa1aa0c89d10 - - default default] The python binding code in neutronclient is deprecated in favor of OpenstackSDK, please use that as this will be removed in a future release.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 4fdbbb6f-b562-4c78-a6de-8fbc32d21fbb. 2026-07-13 21:12:36.726 10 ERROR nova.scheduler.utils [None req-0080e7b4-9b7e-402e-96c2-0acd288eec75 f920d283c6904f2395fc2360ba11039a c594a0f4ec2f4da98db8d7b2c4df6e95 - - default default] [instance: 0870f34f-c9c1-429d-b7bf-0c619d4557ae] Error from last host: instance (node instance): ['Traceback (most recent call last):\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/os_vif/__init__.py", line 84, in plug\n plugin = _EXT_MANAGER[plugin_name].obj\n ~~~~~~~~~~~~^^^^^^^^^^^^^\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/stevedore/extension.py", line 452, in __getitem__\n return self._extensions_by_name[name]\n ~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^\n', "KeyError: 'ovs'\n", '\nDuring handling of the above exception, another exception occurred:\n\n', 'Traceback (most recent call last):\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/vif.py", line 755, in _plug_os_vif\n os_vif.plug(vif, instance_info)\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/os_vif/__init__.py", line 86, in plug\n raise os_vif.exception.NoMatchingPlugin(plugin_name=plugin_name)\n', 'os_vif.exception.NoMatchingPlugin: No VIF plugin was found with the name ovs\n', '\nDuring handling of the above exception, another exception occurred:\n\n', 'Traceback (most recent call last):\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/compute/manager.py", line 2821, in _build_and_run_instance\n self.driver.spawn(context, instance, image_meta,\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/driver.py", line 4879, in spawn\n self._create_guest_with_network(\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/driver.py", line 8471, in _create_guest_with_network\n with excutils.save_and_reraise_exception():\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/oslo_utils/excutils.py", line 266, in __exit__\n self.force_reraise()\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/oslo_utils/excutils.py", line 232, in force_reraise\n raise self.value\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/driver.py", line 8444, in _create_guest_with_network\n self.plug_vifs(instance, network_info)\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/driver.py", line 1511, in plug_vifs\n self.vif_driver.plug(instance, vif)\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/vif.py", line 779, in plug\n self._plug_os_vif(instance, vif_obj)\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/vif.py", line 759, in _plug_os_vif\n raise exception.InternalError(msg)\n', 'nova.exception.InternalError: Failure running os_vif plugin plug method: No VIF plugin was found with the name ovs\n', '\nDuring handling of the above exception, another exception occurred:\n\n', 'Traceback (most recent call last):\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/compute/manager.py", line 2636, in _do_build_and_run_instance\n self._build_and_run_instance(context, instance, image,\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/compute/manager.py", line 2929, in _build_and_run_instance\n raise exception.RescheduledException(\n', 'nova.exception.RescheduledException: Build of instance 0870f34f-c9c1-429d-b7bf-0c619d4557ae was re-scheduled: Failure running os_vif plugin plug method: No VIF plugin was found with the name ovs\n'] 2026-07-13 21:12:36.727 10 WARNING nova.scheduler.utils [None req-0080e7b4-9b7e-402e-96c2-0acd288eec75 f920d283c6904f2395fc2360ba11039a c594a0f4ec2f4da98db8d7b2c4df6e95 - - default default] Failed to compute_task_build_instances: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 0870f34f-c9c1-429d-b7bf-0c619d4557ae.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 0870f34f-c9c1-429d-b7bf-0c619d4557ae. 2026-07-13 21:12:36.727 10 WARNING nova.scheduler.utils [None req-0080e7b4-9b7e-402e-96c2-0acd288eec75 f920d283c6904f2395fc2360ba11039a c594a0f4ec2f4da98db8d7b2c4df6e95 - - default default] [instance: 0870f34f-c9c1-429d-b7bf-0c619d4557ae] Setting instance to ERROR state.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 0870f34f-c9c1-429d-b7bf-0c619d4557ae. 2026-07-13 21:12:36.773 10 WARNING neutronclient.v2_0.client [None req-0080e7b4-9b7e-402e-96c2-0acd288eec75 f920d283c6904f2395fc2360ba11039a c594a0f4ec2f4da98db8d7b2c4df6e95 - - default default] The python binding code in neutronclient is deprecated in favor of OpenstackSDK, please use that as this will be removed in a future release.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 0870f34f-c9c1-429d-b7bf-0c619d4557ae. 2026-07-13 21:12:36.827 10 WARNING neutronclient.v2_0.client [None req-0080e7b4-9b7e-402e-96c2-0acd288eec75 f920d283c6904f2395fc2360ba11039a c594a0f4ec2f4da98db8d7b2c4df6e95 - - default default] The python binding code in neutronclient is deprecated in favor of OpenstackSDK, please use that as this will be removed in a future release.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 0870f34f-c9c1-429d-b7bf-0c619d4557ae. 2026-07-13 21:12:46.956 12 ERROR nova.scheduler.utils [None req-c711d533-1b69-4498-b8b4-a66ee8f3b40e ba32434c4d0a463cb1921b647d2b01ca c80779105d1a42d1b07e3283eb62f367 - - default default] [instance: 2435796c-9ce5-4ec9-9e88-833dca9bc354] Error from last host: instance (node instance): ['Traceback (most recent call last):\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/os_vif/__init__.py", line 84, in plug\n plugin = _EXT_MANAGER[plugin_name].obj\n ~~~~~~~~~~~~^^^^^^^^^^^^^\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/stevedore/extension.py", line 452, in __getitem__\n return self._extensions_by_name[name]\n ~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^\n', "KeyError: 'ovs'\n", '\nDuring handling of the above exception, another exception occurred:\n\n', 'Traceback (most recent call last):\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/vif.py", line 755, in _plug_os_vif\n os_vif.plug(vif, instance_info)\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/os_vif/__init__.py", line 86, in plug\n raise os_vif.exception.NoMatchingPlugin(plugin_name=plugin_name)\n', 'os_vif.exception.NoMatchingPlugin: No VIF plugin was found with the name ovs\n', '\nDuring handling of the above exception, another exception occurred:\n\n', 'Traceback (most recent call last):\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/compute/manager.py", line 2821, in _build_and_run_instance\n self.driver.spawn(context, instance, image_meta,\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/driver.py", line 4879, in spawn\n self._create_guest_with_network(\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/driver.py", line 8471, in _create_guest_with_network\n with excutils.save_and_reraise_exception():\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/oslo_utils/excutils.py", line 266, in __exit__\n self.force_reraise()\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/oslo_utils/excutils.py", line 232, in force_reraise\n raise self.value\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/driver.py", line 8444, in _create_guest_with_network\n self.plug_vifs(instance, network_info)\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/driver.py", line 1511, in plug_vifs\n self.vif_driver.plug(instance, vif)\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/vif.py", line 779, in plug\n self._plug_os_vif(instance, vif_obj)\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/vif.py", line 759, in _plug_os_vif\n raise exception.InternalError(msg)\n', 'nova.exception.InternalError: Failure running os_vif plugin plug method: No VIF plugin was found with the name ovs\n', '\nDuring handling of the above exception, another exception occurred:\n\n', 'Traceback (most recent call last):\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/compute/manager.py", line 2636, in _do_build_and_run_instance\n self._build_and_run_instance(context, instance, image,\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/compute/manager.py", line 2929, in _build_and_run_instance\n raise exception.RescheduledException(\n', 'nova.exception.RescheduledException: Build of instance 2435796c-9ce5-4ec9-9e88-833dca9bc354 was re-scheduled: Failure running os_vif plugin plug method: No VIF plugin was found with the name ovs\n'] 2026-07-13 21:12:46.957 12 WARNING nova.scheduler.utils [None req-c711d533-1b69-4498-b8b4-a66ee8f3b40e ba32434c4d0a463cb1921b647d2b01ca c80779105d1a42d1b07e3283eb62f367 - - default default] Failed to compute_task_build_instances: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 2435796c-9ce5-4ec9-9e88-833dca9bc354.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 2435796c-9ce5-4ec9-9e88-833dca9bc354. 2026-07-13 21:12:46.957 12 WARNING nova.scheduler.utils [None req-c711d533-1b69-4498-b8b4-a66ee8f3b40e ba32434c4d0a463cb1921b647d2b01ca c80779105d1a42d1b07e3283eb62f367 - - default default] [instance: 2435796c-9ce5-4ec9-9e88-833dca9bc354] Setting instance to ERROR state.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 2435796c-9ce5-4ec9-9e88-833dca9bc354. 2026-07-13 21:12:47.004 12 WARNING neutronclient.v2_0.client [None req-c711d533-1b69-4498-b8b4-a66ee8f3b40e ba32434c4d0a463cb1921b647d2b01ca c80779105d1a42d1b07e3283eb62f367 - - default default] The python binding code in neutronclient is deprecated in favor of OpenstackSDK, please use that as this will be removed in a future release.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 2435796c-9ce5-4ec9-9e88-833dca9bc354. 2026-07-13 21:12:47.275 12 WARNING neutronclient.v2_0.client [None req-c711d533-1b69-4498-b8b4-a66ee8f3b40e ba32434c4d0a463cb1921b647d2b01ca c80779105d1a42d1b07e3283eb62f367 - - default default] The python binding code in neutronclient is deprecated in favor of OpenstackSDK, please use that as this will be removed in a future release.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 2435796c-9ce5-4ec9-9e88-833dca9bc354. 2026-07-13 21:14:32.115 12 ERROR nova.scheduler.utils [None req-3fa945ba-1b1a-47b8-923a-b398c5c00d4a 03b017e8660645a694888f2bb65027ba 51fc2997cb374d9ebf617622ed6c36ad - - default default] [instance: 8487b44b-77de-4499-ad2c-96b517832797] Error from last host: instance (node instance): ['Traceback (most recent call last):\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/os_vif/__init__.py", line 84, in plug\n plugin = _EXT_MANAGER[plugin_name].obj\n ~~~~~~~~~~~~^^^^^^^^^^^^^\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/stevedore/extension.py", line 452, in __getitem__\n return self._extensions_by_name[name]\n ~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^\n', "KeyError: 'ovs'\n", '\nDuring handling of the above exception, another exception occurred:\n\n', 'Traceback (most recent call last):\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/vif.py", line 755, in _plug_os_vif\n os_vif.plug(vif, instance_info)\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/os_vif/__init__.py", line 86, in plug\n raise os_vif.exception.NoMatchingPlugin(plugin_name=plugin_name)\n', 'os_vif.exception.NoMatchingPlugin: No VIF plugin was found with the name ovs\n', '\nDuring handling of the above exception, another exception occurred:\n\n', 'Traceback (most recent call last):\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/compute/manager.py", line 2821, in _build_and_run_instance\n self.driver.spawn(context, instance, image_meta,\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/driver.py", line 4879, in spawn\n self._create_guest_with_network(\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/driver.py", line 8471, in _create_guest_with_network\n with excutils.save_and_reraise_exception():\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/oslo_utils/excutils.py", line 266, in __exit__\n self.force_reraise()\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/oslo_utils/excutils.py", line 232, in force_reraise\n raise self.value\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/driver.py", line 8444, in _create_guest_with_network\n self.plug_vifs(instance, network_info)\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/driver.py", line 1511, in plug_vifs\n self.vif_driver.plug(instance, vif)\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/vif.py", line 779, in plug\n self._plug_os_vif(instance, vif_obj)\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/vif.py", line 759, in _plug_os_vif\n raise exception.InternalError(msg)\n', 'nova.exception.InternalError: Failure running os_vif plugin plug method: No VIF plugin was found with the name ovs\n', '\nDuring handling of the above exception, another exception occurred:\n\n', 'Traceback (most recent call last):\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/compute/manager.py", line 2636, in _do_build_and_run_instance\n self._build_and_run_instance(context, instance, image,\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/compute/manager.py", line 2929, in _build_and_run_instance\n raise exception.RescheduledException(\n', 'nova.exception.RescheduledException: Build of instance 8487b44b-77de-4499-ad2c-96b517832797 was re-scheduled: Failure running os_vif plugin plug method: No VIF plugin was found with the name ovs\n'] 2026-07-13 21:14:32.116 12 WARNING nova.scheduler.utils [None req-3fa945ba-1b1a-47b8-923a-b398c5c00d4a 03b017e8660645a694888f2bb65027ba 51fc2997cb374d9ebf617622ed6c36ad - - default default] Failed to compute_task_build_instances: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 8487b44b-77de-4499-ad2c-96b517832797.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 8487b44b-77de-4499-ad2c-96b517832797. 2026-07-13 21:14:32.116 12 WARNING nova.scheduler.utils [None req-3fa945ba-1b1a-47b8-923a-b398c5c00d4a 03b017e8660645a694888f2bb65027ba 51fc2997cb374d9ebf617622ed6c36ad - - default default] [instance: 8487b44b-77de-4499-ad2c-96b517832797] Setting instance to ERROR state.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 8487b44b-77de-4499-ad2c-96b517832797. 2026-07-13 21:14:32.167 12 WARNING neutronclient.v2_0.client [None req-3fa945ba-1b1a-47b8-923a-b398c5c00d4a 03b017e8660645a694888f2bb65027ba 51fc2997cb374d9ebf617622ed6c36ad - - default default] The python binding code in neutronclient is deprecated in favor of OpenstackSDK, please use that as this will be removed in a future release.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 8487b44b-77de-4499-ad2c-96b517832797. 2026-07-13 21:14:32.240 12 WARNING neutronclient.v2_0.client [None req-3fa945ba-1b1a-47b8-923a-b398c5c00d4a 03b017e8660645a694888f2bb65027ba 51fc2997cb374d9ebf617622ed6c36ad - - default default] The python binding code in neutronclient is deprecated in favor of OpenstackSDK, please use that as this will be removed in a future release.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 8487b44b-77de-4499-ad2c-96b517832797. 2026-07-13 21:15:01.528 12 ERROR nova.scheduler.utils [None req-fa341984-e97f-4447-b0b1-a8dd49d6efa3 d4ca4f08253d416096db95795647d751 073d18c547304aa1aaf82f510dd9247b - - default default] [instance: ec98a6d2-cac3-4e5e-9619-eb19e93277f6] Error from last host: instance (node instance): ['Traceback (most recent call last):\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/os_vif/__init__.py", line 84, in plug\n plugin = _EXT_MANAGER[plugin_name].obj\n ~~~~~~~~~~~~^^^^^^^^^^^^^\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/stevedore/extension.py", line 452, in __getitem__\n return self._extensions_by_name[name]\n ~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^\n', "KeyError: 'ovs'\n", '\nDuring handling of the above exception, another exception occurred:\n\n', 'Traceback (most recent call last):\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/vif.py", line 755, in _plug_os_vif\n os_vif.plug(vif, instance_info)\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/os_vif/__init__.py", line 86, in plug\n raise os_vif.exception.NoMatchingPlugin(plugin_name=plugin_name)\n', 'os_vif.exception.NoMatchingPlugin: No VIF plugin was found with the name ovs\n', '\nDuring handling of the above exception, another exception occurred:\n\n', 'Traceback (most recent call last):\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/compute/manager.py", line 2821, in _build_and_run_instance\n self.driver.spawn(context, instance, image_meta,\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/driver.py", line 4879, in spawn\n self._create_guest_with_network(\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/driver.py", line 8471, in _create_guest_with_network\n with excutils.save_and_reraise_exception():\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/oslo_utils/excutils.py", line 266, in __exit__\n self.force_reraise()\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/oslo_utils/excutils.py", line 232, in force_reraise\n raise self.value\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/driver.py", line 8444, in _create_guest_with_network\n self.plug_vifs(instance, network_info)\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/driver.py", line 1511, in plug_vifs\n self.vif_driver.plug(instance, vif)\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/vif.py", line 779, in plug\n self._plug_os_vif(instance, vif_obj)\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/vif.py", line 759, in _plug_os_vif\n raise exception.InternalError(msg)\n', 'nova.exception.InternalError: Failure running os_vif plugin plug method: No VIF plugin was found with the name ovs\n', '\nDuring handling of the above exception, another exception occurred:\n\n', 'Traceback (most recent call last):\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/compute/manager.py", line 2636, in _do_build_and_run_instance\n self._build_and_run_instance(context, instance, image,\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/compute/manager.py", line 2929, in _build_and_run_instance\n raise exception.RescheduledException(\n', 'nova.exception.RescheduledException: Build of instance ec98a6d2-cac3-4e5e-9619-eb19e93277f6 was re-scheduled: Failure running os_vif plugin plug method: No VIF plugin was found with the name ovs\n'] 2026-07-13 21:15:01.529 12 WARNING nova.scheduler.utils [None req-fa341984-e97f-4447-b0b1-a8dd49d6efa3 d4ca4f08253d416096db95795647d751 073d18c547304aa1aaf82f510dd9247b - - default default] Failed to compute_task_build_instances: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance ec98a6d2-cac3-4e5e-9619-eb19e93277f6.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance ec98a6d2-cac3-4e5e-9619-eb19e93277f6. 2026-07-13 21:15:01.529 12 WARNING nova.scheduler.utils [None req-fa341984-e97f-4447-b0b1-a8dd49d6efa3 d4ca4f08253d416096db95795647d751 073d18c547304aa1aaf82f510dd9247b - - default default] [instance: ec98a6d2-cac3-4e5e-9619-eb19e93277f6] Setting instance to ERROR state.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance ec98a6d2-cac3-4e5e-9619-eb19e93277f6. 2026-07-13 21:15:01.572 12 WARNING neutronclient.v2_0.client [None req-fa341984-e97f-4447-b0b1-a8dd49d6efa3 d4ca4f08253d416096db95795647d751 073d18c547304aa1aaf82f510dd9247b - - default default] The python binding code in neutronclient is deprecated in favor of OpenstackSDK, please use that as this will be removed in a future release.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance ec98a6d2-cac3-4e5e-9619-eb19e93277f6. 2026-07-13 21:15:01.600 12 WARNING neutronclient.v2_0.client [None req-fa341984-e97f-4447-b0b1-a8dd49d6efa3 d4ca4f08253d416096db95795647d751 073d18c547304aa1aaf82f510dd9247b - - default default] The python binding code in neutronclient is deprecated in favor of OpenstackSDK, please use that as this will be removed in a future release.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance ec98a6d2-cac3-4e5e-9619-eb19e93277f6. 2026-07-13 21:15:40.251 12 ERROR nova.scheduler.utils [None req-1cf073c3-3e1b-4a5a-9885-6aa539306d4f 167ec72151aa45cfa83614e9be74a5ed 079ab84afe2e4b23829993c0e950bc7b - - default default] [instance: 87fe5f16-e7d9-4124-804f-9c6a3d127939] Error from last host: instance (node instance): ['Traceback (most recent call last):\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/os_vif/__init__.py", line 84, in plug\n plugin = _EXT_MANAGER[plugin_name].obj\n ~~~~~~~~~~~~^^^^^^^^^^^^^\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/stevedore/extension.py", line 452, in __getitem__\n return self._extensions_by_name[name]\n ~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^\n', "KeyError: 'ovs'\n", '\nDuring handling of the above exception, another exception occurred:\n\n', 'Traceback (most recent call last):\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/vif.py", line 755, in _plug_os_vif\n os_vif.plug(vif, instance_info)\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/os_vif/__init__.py", line 86, in plug\n raise os_vif.exception.NoMatchingPlugin(plugin_name=plugin_name)\n', 'os_vif.exception.NoMatchingPlugin: No VIF plugin was found with the name ovs\n', '\nDuring handling of the above exception, another exception occurred:\n\n', 'Traceback (most recent call last):\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/compute/manager.py", line 2821, in _build_and_run_instance\n self.driver.spawn(context, instance, image_meta,\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/driver.py", line 4879, in spawn\n self._create_guest_with_network(\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/driver.py", line 8471, in _create_guest_with_network\n with excutils.save_and_reraise_exception():\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/oslo_utils/excutils.py", line 266, in __exit__\n self.force_reraise()\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/oslo_utils/excutils.py", line 232, in force_reraise\n raise self.value\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/driver.py", line 8444, in _create_guest_with_network\n self.plug_vifs(instance, network_info)\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/driver.py", line 1511, in plug_vifs\n self.vif_driver.plug(instance, vif)\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/vif.py", line 779, in plug\n self._plug_os_vif(instance, vif_obj)\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/vif.py", line 759, in _plug_os_vif\n raise exception.InternalError(msg)\n', 'nova.exception.InternalError: Failure running os_vif plugin plug method: No VIF plugin was found with the name ovs\n', '\nDuring handling of the above exception, another exception occurred:\n\n', 'Traceback (most recent call last):\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/compute/manager.py", line 2636, in _do_build_and_run_instance\n self._build_and_run_instance(context, instance, image,\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/compute/manager.py", line 2929, in _build_and_run_instance\n raise exception.RescheduledException(\n', 'nova.exception.RescheduledException: Build of instance 87fe5f16-e7d9-4124-804f-9c6a3d127939 was re-scheduled: Failure running os_vif plugin plug method: No VIF plugin was found with the name ovs\n'] 2026-07-13 21:15:40.252 12 WARNING nova.scheduler.utils [None req-1cf073c3-3e1b-4a5a-9885-6aa539306d4f 167ec72151aa45cfa83614e9be74a5ed 079ab84afe2e4b23829993c0e950bc7b - - default default] Failed to compute_task_build_instances: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 87fe5f16-e7d9-4124-804f-9c6a3d127939.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 87fe5f16-e7d9-4124-804f-9c6a3d127939. 2026-07-13 21:15:40.252 12 WARNING nova.scheduler.utils [None req-1cf073c3-3e1b-4a5a-9885-6aa539306d4f 167ec72151aa45cfa83614e9be74a5ed 079ab84afe2e4b23829993c0e950bc7b - - default default] [instance: 87fe5f16-e7d9-4124-804f-9c6a3d127939] Setting instance to ERROR state.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 87fe5f16-e7d9-4124-804f-9c6a3d127939. 2026-07-13 21:15:40.297 12 WARNING neutronclient.v2_0.client [None req-1cf073c3-3e1b-4a5a-9885-6aa539306d4f 167ec72151aa45cfa83614e9be74a5ed 079ab84afe2e4b23829993c0e950bc7b - - default default] The python binding code in neutronclient is deprecated in favor of OpenstackSDK, please use that as this will be removed in a future release.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 87fe5f16-e7d9-4124-804f-9c6a3d127939. 2026-07-13 21:15:40.328 12 WARNING neutronclient.v2_0.client [None req-1cf073c3-3e1b-4a5a-9885-6aa539306d4f 167ec72151aa45cfa83614e9be74a5ed 079ab84afe2e4b23829993c0e950bc7b - - default default] The python binding code in neutronclient is deprecated in favor of OpenstackSDK, please use that as this will be removed in a future release.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 87fe5f16-e7d9-4124-804f-9c6a3d127939. 2026-07-13 21:16:11.840 12 ERROR nova.scheduler.utils [None req-785777cc-cf1a-4d04-8c7a-e4f63fc39cc4 a92040a0185b4553b5c28fb6012314d2 fc973740adc541eda34140e071446bc4 - - default default] [instance: 7e90e474-cd65-4314-a68f-a15c0c3d1b34] Error from last host: instance (node instance): ['Traceback (most recent call last):\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/os_vif/__init__.py", line 84, in plug\n plugin = _EXT_MANAGER[plugin_name].obj\n ~~~~~~~~~~~~^^^^^^^^^^^^^\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/stevedore/extension.py", line 452, in __getitem__\n return self._extensions_by_name[name]\n ~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^\n', "KeyError: 'ovs'\n", '\nDuring handling of the above exception, another exception occurred:\n\n', 'Traceback (most recent call last):\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/vif.py", line 755, in _plug_os_vif\n os_vif.plug(vif, instance_info)\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/os_vif/__init__.py", line 86, in plug\n raise os_vif.exception.NoMatchingPlugin(plugin_name=plugin_name)\n', 'os_vif.exception.NoMatchingPlugin: No VIF plugin was found with the name ovs\n', '\nDuring handling of the above exception, another exception occurred:\n\n', 'Traceback (most recent call last):\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/compute/manager.py", line 2821, in _build_and_run_instance\n self.driver.spawn(context, instance, image_meta,\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/driver.py", line 4879, in spawn\n self._create_guest_with_network(\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/driver.py", line 8471, in _create_guest_with_network\n with excutils.save_and_reraise_exception():\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/oslo_utils/excutils.py", line 266, in __exit__\n self.force_reraise()\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/oslo_utils/excutils.py", line 232, in force_reraise\n raise self.value\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/driver.py", line 8444, in _create_guest_with_network\n self.plug_vifs(instance, network_info)\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/driver.py", line 1511, in plug_vifs\n self.vif_driver.plug(instance, vif)\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/vif.py", line 779, in plug\n self._plug_os_vif(instance, vif_obj)\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/vif.py", line 759, in _plug_os_vif\n raise exception.InternalError(msg)\n', 'nova.exception.InternalError: Failure running os_vif plugin plug method: No VIF plugin was found with the name ovs\n', '\nDuring handling of the above exception, another exception occurred:\n\n', 'Traceback (most recent call last):\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/compute/manager.py", line 2636, in _do_build_and_run_instance\n self._build_and_run_instance(context, instance, image,\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/compute/manager.py", line 2929, in _build_and_run_instance\n raise exception.RescheduledException(\n', 'nova.exception.RescheduledException: Build of instance 7e90e474-cd65-4314-a68f-a15c0c3d1b34 was re-scheduled: Failure running os_vif plugin plug method: No VIF plugin was found with the name ovs\n'] 2026-07-13 21:16:11.840 12 WARNING nova.scheduler.utils [None req-785777cc-cf1a-4d04-8c7a-e4f63fc39cc4 a92040a0185b4553b5c28fb6012314d2 fc973740adc541eda34140e071446bc4 - - default default] Failed to compute_task_build_instances: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 7e90e474-cd65-4314-a68f-a15c0c3d1b34.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 7e90e474-cd65-4314-a68f-a15c0c3d1b34. 2026-07-13 21:16:11.841 12 WARNING nova.scheduler.utils [None req-785777cc-cf1a-4d04-8c7a-e4f63fc39cc4 a92040a0185b4553b5c28fb6012314d2 fc973740adc541eda34140e071446bc4 - - default default] [instance: 7e90e474-cd65-4314-a68f-a15c0c3d1b34] Setting instance to ERROR state.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 7e90e474-cd65-4314-a68f-a15c0c3d1b34. 2026-07-13 21:16:11.891 12 WARNING neutronclient.v2_0.client [None req-785777cc-cf1a-4d04-8c7a-e4f63fc39cc4 a92040a0185b4553b5c28fb6012314d2 fc973740adc541eda34140e071446bc4 - - default default] The python binding code in neutronclient is deprecated in favor of OpenstackSDK, please use that as this will be removed in a future release.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 7e90e474-cd65-4314-a68f-a15c0c3d1b34. 2026-07-13 21:16:11.919 12 WARNING neutronclient.v2_0.client [None req-785777cc-cf1a-4d04-8c7a-e4f63fc39cc4 a92040a0185b4553b5c28fb6012314d2 fc973740adc541eda34140e071446bc4 - - default default] The python binding code in neutronclient is deprecated in favor of OpenstackSDK, please use that as this will be removed in a future release.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 7e90e474-cd65-4314-a68f-a15c0c3d1b34.