+ exec nova-conductor --config-file /etc/nova/nova.conf 2026-09-14 16:56:39.286 1 INFO nova.utils [None req-83788cd9-7ffd-4e13-8e76-7941dd1eb6b7 - - - - - -] The cell worker thread pool MainProcess.cell_worker is initialized 2026-09-14 16:56:39.451 1 INFO nova.utils [None req-83788cd9-7ffd-4e13-8e76-7941dd1eb6b7 - - - - - -] The cell worker thread pool MainProcess.cell_worker is shutting down 2026-09-14 16:56:40.451 1 INFO nova.utils [None req-83788cd9-7ffd-4e13-8e76-7941dd1eb6b7 - - - - - -] The cell worker thread pool MainProcess.cell_worker is closed 2026-09-14 16:56:40.454 1 WARNING oslo_service.backend._threading.service [None req-83788cd9-7ffd-4e13-8e76-7941dd1eb6b7 - - - - - -] Service Service is not picklable with spawn; falling back to fork. Please make the service spawn-safe to avoid this fallback. 2026-09-14 16:56:40.467 1 WARNING oslo_config.cfg [None req-83788cd9-7ffd-4e13-8e76-7941dd1eb6b7 - - - - - -] 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. 2026-09-14 16:56:40.533 10 INFO nova.service [-] Starting conductor node (version 33.1.0) 2026-09-14 16:56:40.545 12 INFO nova.service [-] Starting conductor node (version 33.1.0) 2026-09-14 17:37:08.687 10 INFO nova.utils [None req-da076051-3f1c-489b-8111-b0b9aba374ae 5cc20e1890b849d39bfd3a113ab17fed 3966aac6807842ccae0714012b3aa26e - - default default] The cell worker thread pool ForkProcess-1.cell_worker is initialized 2026-09-14 17:37:08.829 10 INFO nova.compute.rpcapi [None req-6dd3d37a-cfb6-4efc-bb35-aa7efb080af4 - - - - - -] Automatically selected compute RPC version 6.5 from minimum service version 72 2026-09-14 17:37:24.964 12 ERROR nova.scheduler.utils [None req-da076051-3f1c-489b-8111-b0b9aba374ae 5cc20e1890b849d39bfd3a113ab17fed 3966aac6807842ccae0714012b3aa26e - - default default] [instance: 69b6306c-4f5e-4890-b963-f8003ba127f6] 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 2723, 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 5018, in spawn\n self._create_guest_with_network(\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/driver.py", line 8610, 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 8583, 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 1650, 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 2538, 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 2831, in _build_and_run_instance\n raise exception.RescheduledException(\n', 'nova.exception.RescheduledException: Build of instance 69b6306c-4f5e-4890-b963-f8003ba127f6 was re-scheduled: Failure running os_vif plugin plug method: No VIF plugin was found with the name ovs\n'] 2026-09-14 17:37:24.967 12 WARNING nova.scheduler.utils [None req-da076051-3f1c-489b-8111-b0b9aba374ae 5cc20e1890b849d39bfd3a113ab17fed 3966aac6807842ccae0714012b3aa26e - - default default] Failed to compute_task_build_instances: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 69b6306c-4f5e-4890-b963-f8003ba127f6.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 69b6306c-4f5e-4890-b963-f8003ba127f6. 2026-09-14 17:37:24.967 12 WARNING nova.scheduler.utils [None req-da076051-3f1c-489b-8111-b0b9aba374ae 5cc20e1890b849d39bfd3a113ab17fed 3966aac6807842ccae0714012b3aa26e - - default default] [instance: 69b6306c-4f5e-4890-b963-f8003ba127f6] Setting instance to ERROR state.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 69b6306c-4f5e-4890-b963-f8003ba127f6. 2026-09-14 17:37:25.082 12 WARNING neutronclient.v2_0.client [None req-da076051-3f1c-489b-8111-b0b9aba374ae 5cc20e1890b849d39bfd3a113ab17fed 3966aac6807842ccae0714012b3aa26e - - 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 69b6306c-4f5e-4890-b963-f8003ba127f6. 2026-09-14 17:37:25.330 12 INFO nova.utils [None req-8e5a371e-338f-4ff4-bbf5-86bfd749f132 dcb8e10124a0472e82275a398c806e40 4dcb12255677470da5c7e34d74f40316 - - default default] The cell worker thread pool ForkProcess-2.cell_worker is initialized 2026-09-14 17:37:25.561 12 INFO nova.compute.rpcapi [None req-5ee4811c-c2ea-48ae-afae-060ab5de4241 - - - - - -] Automatically selected compute RPC version 6.5 from minimum service version 72 2026-09-14 17:37:25.795 12 WARNING neutronclient.v2_0.client [None req-da076051-3f1c-489b-8111-b0b9aba374ae 5cc20e1890b849d39bfd3a113ab17fed 3966aac6807842ccae0714012b3aa26e - - 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 69b6306c-4f5e-4890-b963-f8003ba127f6. 2026-09-14 17:37:33.462 10 ERROR nova.scheduler.utils [None req-27a4bfef-7362-4feb-8ede-56486e5b4184 449c074b34fe48798ead36e131fd71a3 9348a35f5b5845e2ad980027de2a1937 - - default default] [instance: 4c2e2727-e58c-4440-94a4-9f0bf1e0453e] 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 2723, 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 5018, in spawn\n self._create_guest_with_network(\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/driver.py", line 8610, 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 8583, 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 1650, 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 2538, 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 2831, in _build_and_run_instance\n raise exception.RescheduledException(\n', 'nova.exception.RescheduledException: Build of instance 4c2e2727-e58c-4440-94a4-9f0bf1e0453e was re-scheduled: Failure running os_vif plugin plug method: No VIF plugin was found with the name ovs\n'] 2026-09-14 17:37:33.462 10 WARNING nova.scheduler.utils [None req-27a4bfef-7362-4feb-8ede-56486e5b4184 449c074b34fe48798ead36e131fd71a3 9348a35f5b5845e2ad980027de2a1937 - - default default] Failed to compute_task_build_instances: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 4c2e2727-e58c-4440-94a4-9f0bf1e0453e.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 4c2e2727-e58c-4440-94a4-9f0bf1e0453e. 2026-09-14 17:37:33.463 10 WARNING nova.scheduler.utils [None req-27a4bfef-7362-4feb-8ede-56486e5b4184 449c074b34fe48798ead36e131fd71a3 9348a35f5b5845e2ad980027de2a1937 - - default default] [instance: 4c2e2727-e58c-4440-94a4-9f0bf1e0453e] Setting instance to ERROR state.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 4c2e2727-e58c-4440-94a4-9f0bf1e0453e. 2026-09-14 17:37:33.556 10 WARNING neutronclient.v2_0.client [None req-27a4bfef-7362-4feb-8ede-56486e5b4184 449c074b34fe48798ead36e131fd71a3 9348a35f5b5845e2ad980027de2a1937 - - 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 4c2e2727-e58c-4440-94a4-9f0bf1e0453e. 2026-09-14 17:37:34.095 10 WARNING neutronclient.v2_0.client [None req-27a4bfef-7362-4feb-8ede-56486e5b4184 449c074b34fe48798ead36e131fd71a3 9348a35f5b5845e2ad980027de2a1937 - - 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 4c2e2727-e58c-4440-94a4-9f0bf1e0453e. 2026-09-14 17:37:41.406 10 ERROR nova.scheduler.utils [None req-8e5a371e-338f-4ff4-bbf5-86bfd749f132 dcb8e10124a0472e82275a398c806e40 4dcb12255677470da5c7e34d74f40316 - - default default] [instance: f35c2ed9-078e-44c0-a3b7-0015a8fbc82c] 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 2723, 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 5018, in spawn\n self._create_guest_with_network(\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/driver.py", line 8610, 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 8583, 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 1650, 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 2538, 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 2831, in _build_and_run_instance\n raise exception.RescheduledException(\n', 'nova.exception.RescheduledException: Build of instance f35c2ed9-078e-44c0-a3b7-0015a8fbc82c was re-scheduled: Failure running os_vif plugin plug method: No VIF plugin was found with the name ovs\n'] 2026-09-14 17:37:41.407 10 WARNING nova.scheduler.utils [None req-8e5a371e-338f-4ff4-bbf5-86bfd749f132 dcb8e10124a0472e82275a398c806e40 4dcb12255677470da5c7e34d74f40316 - - default default] Failed to compute_task_build_instances: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance f35c2ed9-078e-44c0-a3b7-0015a8fbc82c.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance f35c2ed9-078e-44c0-a3b7-0015a8fbc82c. 2026-09-14 17:37:41.408 10 WARNING nova.scheduler.utils [None req-8e5a371e-338f-4ff4-bbf5-86bfd749f132 dcb8e10124a0472e82275a398c806e40 4dcb12255677470da5c7e34d74f40316 - - default default] [instance: f35c2ed9-078e-44c0-a3b7-0015a8fbc82c] Setting instance to ERROR state.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance f35c2ed9-078e-44c0-a3b7-0015a8fbc82c. 2026-09-14 17:37:41.480 10 WARNING neutronclient.v2_0.client [None req-8e5a371e-338f-4ff4-bbf5-86bfd749f132 dcb8e10124a0472e82275a398c806e40 4dcb12255677470da5c7e34d74f40316 - - 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 f35c2ed9-078e-44c0-a3b7-0015a8fbc82c. 2026-09-14 17:37:41.517 10 WARNING neutronclient.v2_0.client [None req-8e5a371e-338f-4ff4-bbf5-86bfd749f132 dcb8e10124a0472e82275a398c806e40 4dcb12255677470da5c7e34d74f40316 - - 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 f35c2ed9-078e-44c0-a3b7-0015a8fbc82c. 2026-09-14 17:37:56.243 10 ERROR nova.scheduler.utils [None req-23ff579f-8196-4fed-8da4-da989e9e6445 b1a5425e0e8e462bbfe919d1a2eb7a68 7060c38921b34ad188341ecbf771ed7a - - default default] [instance: 220be9a9-1357-494b-a8b9-bf3a01f2b25c] 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 2723, 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 5018, in spawn\n self._create_guest_with_network(\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/driver.py", line 8610, 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 8583, 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 1650, 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 2538, 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 2831, in _build_and_run_instance\n raise exception.RescheduledException(\n', 'nova.exception.RescheduledException: Build of instance 220be9a9-1357-494b-a8b9-bf3a01f2b25c was re-scheduled: Failure running os_vif plugin plug method: No VIF plugin was found with the name ovs\n'] 2026-09-14 17:37:56.244 10 WARNING nova.scheduler.utils [None req-23ff579f-8196-4fed-8da4-da989e9e6445 b1a5425e0e8e462bbfe919d1a2eb7a68 7060c38921b34ad188341ecbf771ed7a - - default default] Failed to compute_task_build_instances: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 220be9a9-1357-494b-a8b9-bf3a01f2b25c.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 220be9a9-1357-494b-a8b9-bf3a01f2b25c. 2026-09-14 17:37:56.244 10 WARNING nova.scheduler.utils [None req-23ff579f-8196-4fed-8da4-da989e9e6445 b1a5425e0e8e462bbfe919d1a2eb7a68 7060c38921b34ad188341ecbf771ed7a - - default default] [instance: 220be9a9-1357-494b-a8b9-bf3a01f2b25c] Setting instance to ERROR state.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 220be9a9-1357-494b-a8b9-bf3a01f2b25c. 2026-09-14 17:37:56.298 10 WARNING neutronclient.v2_0.client [None req-23ff579f-8196-4fed-8da4-da989e9e6445 b1a5425e0e8e462bbfe919d1a2eb7a68 7060c38921b34ad188341ecbf771ed7a - - 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 220be9a9-1357-494b-a8b9-bf3a01f2b25c. 2026-09-14 17:37:56.318 10 WARNING neutronclient.v2_0.client [None req-23ff579f-8196-4fed-8da4-da989e9e6445 b1a5425e0e8e462bbfe919d1a2eb7a68 7060c38921b34ad188341ecbf771ed7a - - 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 220be9a9-1357-494b-a8b9-bf3a01f2b25c. 2026-09-14 17:38:08.886 12 ERROR nova.scheduler.utils [None req-392c2661-a6f1-456b-96a7-0a3362e7a4c3 4967f82678364550b8847ee30f687865 061d134be00a4ffcbc6479b944b69567 - - default default] [instance: c8f73f85-63d7-47a4-b461-ad52656f2611] 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 2723, 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 5018, in spawn\n self._create_guest_with_network(\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/driver.py", line 8610, 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 8583, 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 1650, 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 2538, 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 2831, in _build_and_run_instance\n raise exception.RescheduledException(\n', 'nova.exception.RescheduledException: Build of instance c8f73f85-63d7-47a4-b461-ad52656f2611 was re-scheduled: Failure running os_vif plugin plug method: No VIF plugin was found with the name ovs\n'] 2026-09-14 17:38:08.887 12 WARNING nova.scheduler.utils [None req-392c2661-a6f1-456b-96a7-0a3362e7a4c3 4967f82678364550b8847ee30f687865 061d134be00a4ffcbc6479b944b69567 - - default default] Failed to compute_task_build_instances: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance c8f73f85-63d7-47a4-b461-ad52656f2611.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance c8f73f85-63d7-47a4-b461-ad52656f2611. 2026-09-14 17:38:08.887 12 WARNING nova.scheduler.utils [None req-392c2661-a6f1-456b-96a7-0a3362e7a4c3 4967f82678364550b8847ee30f687865 061d134be00a4ffcbc6479b944b69567 - - default default] [instance: c8f73f85-63d7-47a4-b461-ad52656f2611] Setting instance to ERROR state.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance c8f73f85-63d7-47a4-b461-ad52656f2611. 2026-09-14 17:38:08.935 12 WARNING neutronclient.v2_0.client [None req-392c2661-a6f1-456b-96a7-0a3362e7a4c3 4967f82678364550b8847ee30f687865 061d134be00a4ffcbc6479b944b69567 - - 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 c8f73f85-63d7-47a4-b461-ad52656f2611. 2026-09-14 17:38:09.215 12 WARNING neutronclient.v2_0.client [None req-392c2661-a6f1-456b-96a7-0a3362e7a4c3 4967f82678364550b8847ee30f687865 061d134be00a4ffcbc6479b944b69567 - - 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 c8f73f85-63d7-47a4-b461-ad52656f2611. 2026-09-14 17:38:27.308 12 ERROR nova.scheduler.utils [None req-01dd6bf0-c2f2-4106-ba28-ea556cf489ab bec575e95cdc45bd8489a0dd7db22424 a09614b165b34e07adef0cd59b1743d8 - - default default] [instance: 9e813501-b5aa-4015-9959-25dede280fab] 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 2723, 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 5018, in spawn\n self._create_guest_with_network(\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/driver.py", line 8610, 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 8583, 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 1650, 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 2538, 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 2831, in _build_and_run_instance\n raise exception.RescheduledException(\n', 'nova.exception.RescheduledException: Build of instance 9e813501-b5aa-4015-9959-25dede280fab was re-scheduled: Failure running os_vif plugin plug method: No VIF plugin was found with the name ovs\n'] 2026-09-14 17:38:27.308 12 WARNING nova.scheduler.utils [None req-01dd6bf0-c2f2-4106-ba28-ea556cf489ab bec575e95cdc45bd8489a0dd7db22424 a09614b165b34e07adef0cd59b1743d8 - - default default] Failed to compute_task_build_instances: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 9e813501-b5aa-4015-9959-25dede280fab.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 9e813501-b5aa-4015-9959-25dede280fab. 2026-09-14 17:38:27.309 12 WARNING nova.scheduler.utils [None req-01dd6bf0-c2f2-4106-ba28-ea556cf489ab bec575e95cdc45bd8489a0dd7db22424 a09614b165b34e07adef0cd59b1743d8 - - default default] [instance: 9e813501-b5aa-4015-9959-25dede280fab] Setting instance to ERROR state.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 9e813501-b5aa-4015-9959-25dede280fab. 2026-09-14 17:38:27.354 12 WARNING neutronclient.v2_0.client [None req-01dd6bf0-c2f2-4106-ba28-ea556cf489ab bec575e95cdc45bd8489a0dd7db22424 a09614b165b34e07adef0cd59b1743d8 - - 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 9e813501-b5aa-4015-9959-25dede280fab. 2026-09-14 17:38:27.372 12 WARNING neutronclient.v2_0.client [None req-01dd6bf0-c2f2-4106-ba28-ea556cf489ab bec575e95cdc45bd8489a0dd7db22424 a09614b165b34e07adef0cd59b1743d8 - - 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 9e813501-b5aa-4015-9959-25dede280fab. 2026-09-14 17:39:12.845 12 ERROR nova.scheduler.utils [None req-21ba01d8-1bb5-4b09-8d68-c09276e31c15 6834389f9c784c768e43f8a61a3eba03 a4db18b589d44ab9a7e3a53ae043b93a - - default default] [instance: 7565f40f-5994-4013-a292-1a6b6a2920bc] 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 2723, 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 5018, in spawn\n self._create_guest_with_network(\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/driver.py", line 8610, 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 8583, 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 1650, 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 2538, 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 2831, in _build_and_run_instance\n raise exception.RescheduledException(\n', 'nova.exception.RescheduledException: Build of instance 7565f40f-5994-4013-a292-1a6b6a2920bc was re-scheduled: Failure running os_vif plugin plug method: No VIF plugin was found with the name ovs\n'] 2026-09-14 17:39:12.846 12 WARNING nova.scheduler.utils [None req-21ba01d8-1bb5-4b09-8d68-c09276e31c15 6834389f9c784c768e43f8a61a3eba03 a4db18b589d44ab9a7e3a53ae043b93a - - default default] Failed to compute_task_build_instances: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 7565f40f-5994-4013-a292-1a6b6a2920bc.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 7565f40f-5994-4013-a292-1a6b6a2920bc. 2026-09-14 17:39:12.847 12 WARNING nova.scheduler.utils [None req-21ba01d8-1bb5-4b09-8d68-c09276e31c15 6834389f9c784c768e43f8a61a3eba03 a4db18b589d44ab9a7e3a53ae043b93a - - default default] [instance: 7565f40f-5994-4013-a292-1a6b6a2920bc] Setting instance to ERROR state.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 7565f40f-5994-4013-a292-1a6b6a2920bc. 2026-09-14 17:39:12.900 12 WARNING neutronclient.v2_0.client [None req-21ba01d8-1bb5-4b09-8d68-c09276e31c15 6834389f9c784c768e43f8a61a3eba03 a4db18b589d44ab9a7e3a53ae043b93a - - 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 7565f40f-5994-4013-a292-1a6b6a2920bc. 2026-09-14 17:39:12.999 12 WARNING neutronclient.v2_0.client [None req-21ba01d8-1bb5-4b09-8d68-c09276e31c15 6834389f9c784c768e43f8a61a3eba03 a4db18b589d44ab9a7e3a53ae043b93a - - 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 7565f40f-5994-4013-a292-1a6b6a2920bc. 2026-09-14 17:39:46.150 10 ERROR nova.scheduler.utils [None req-bbab6363-3c98-4c9c-82e5-49f15101c979 a524d47384494ceeb1c4dd4c61e41ae4 348d581becfa4adc9f7970fb89bbd6c4 - - default default] [instance: b36c198b-593c-457e-a922-a5c6b0e6125c] 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 2723, 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 5018, in spawn\n self._create_guest_with_network(\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/driver.py", line 8610, 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 8583, 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 1650, 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 2538, 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 2831, in _build_and_run_instance\n raise exception.RescheduledException(\n', 'nova.exception.RescheduledException: Build of instance b36c198b-593c-457e-a922-a5c6b0e6125c was re-scheduled: Failure running os_vif plugin plug method: No VIF plugin was found with the name ovs\n'] 2026-09-14 17:39:46.152 10 WARNING nova.scheduler.utils [None req-bbab6363-3c98-4c9c-82e5-49f15101c979 a524d47384494ceeb1c4dd4c61e41ae4 348d581becfa4adc9f7970fb89bbd6c4 - - default default] Failed to compute_task_build_instances: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance b36c198b-593c-457e-a922-a5c6b0e6125c.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance b36c198b-593c-457e-a922-a5c6b0e6125c. 2026-09-14 17:39:46.152 10 WARNING nova.scheduler.utils [None req-bbab6363-3c98-4c9c-82e5-49f15101c979 a524d47384494ceeb1c4dd4c61e41ae4 348d581becfa4adc9f7970fb89bbd6c4 - - default default] [instance: b36c198b-593c-457e-a922-a5c6b0e6125c] Setting instance to ERROR state.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance b36c198b-593c-457e-a922-a5c6b0e6125c. 2026-09-14 17:39:46.218 10 WARNING neutronclient.v2_0.client [None req-bbab6363-3c98-4c9c-82e5-49f15101c979 a524d47384494ceeb1c4dd4c61e41ae4 348d581becfa4adc9f7970fb89bbd6c4 - - 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 b36c198b-593c-457e-a922-a5c6b0e6125c. 2026-09-14 17:39:46.979 10 WARNING neutronclient.v2_0.client [None req-bbab6363-3c98-4c9c-82e5-49f15101c979 a524d47384494ceeb1c4dd4c61e41ae4 348d581becfa4adc9f7970fb89bbd6c4 - - 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 b36c198b-593c-457e-a922-a5c6b0e6125c. 2026-09-14 17:40:10.467 10 ERROR nova.scheduler.utils [None req-1da7d9af-e55e-40e4-9d6d-af9385f7f924 a1b87b24896a4e54b9c425c9781763d4 69d42821351242578ddecd519362220e - - default default] [instance: 98e206ae-4670-4890-8278-f5425203fe9f] 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 2723, 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 5018, in spawn\n self._create_guest_with_network(\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/driver.py", line 8610, 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 8583, 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 1650, 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 2538, 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 2831, in _build_and_run_instance\n raise exception.RescheduledException(\n', 'nova.exception.RescheduledException: Build of instance 98e206ae-4670-4890-8278-f5425203fe9f was re-scheduled: Failure running os_vif plugin plug method: No VIF plugin was found with the name ovs\n'] 2026-09-14 17:40:10.469 10 WARNING nova.scheduler.utils [None req-1da7d9af-e55e-40e4-9d6d-af9385f7f924 a1b87b24896a4e54b9c425c9781763d4 69d42821351242578ddecd519362220e - - default default] Failed to compute_task_build_instances: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 98e206ae-4670-4890-8278-f5425203fe9f.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 98e206ae-4670-4890-8278-f5425203fe9f. 2026-09-14 17:40:10.469 10 WARNING nova.scheduler.utils [None req-1da7d9af-e55e-40e4-9d6d-af9385f7f924 a1b87b24896a4e54b9c425c9781763d4 69d42821351242578ddecd519362220e - - default default] [instance: 98e206ae-4670-4890-8278-f5425203fe9f] Setting instance to ERROR state.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 98e206ae-4670-4890-8278-f5425203fe9f. 2026-09-14 17:40:10.546 10 WARNING neutronclient.v2_0.client [None req-1da7d9af-e55e-40e4-9d6d-af9385f7f924 a1b87b24896a4e54b9c425c9781763d4 69d42821351242578ddecd519362220e - - 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 98e206ae-4670-4890-8278-f5425203fe9f. 2026-09-14 17:40:10.581 10 WARNING neutronclient.v2_0.client [None req-1da7d9af-e55e-40e4-9d6d-af9385f7f924 a1b87b24896a4e54b9c425c9781763d4 69d42821351242578ddecd519362220e - - 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 98e206ae-4670-4890-8278-f5425203fe9f. 2026-09-14 17:41:55.632 12 ERROR nova.scheduler.utils [None req-7a3abd4f-f52e-4681-a9d6-d7173b7221d8 ecfd2efbf3c043efa11039ef1193ea4a 4f4024496c204a2e9a9e2cd415f9771c - - default default] [instance: e6e0bc73-796b-4265-b104-a0dd0209da4a] 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 2723, 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 5018, in spawn\n self._create_guest_with_network(\n', ' File "/var/lib/openstack/lib/python3.12/site-packages/nova/virt/libvirt/driver.py", line 8610, 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 8583, 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 1650, 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 2538, 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 2831, in _build_and_run_instance\n raise exception.RescheduledException(\n', 'nova.exception.RescheduledException: Build of instance e6e0bc73-796b-4265-b104-a0dd0209da4a was re-scheduled: Failure running os_vif plugin plug method: No VIF plugin was found with the name ovs\n'] 2026-09-14 17:41:55.634 12 WARNING nova.scheduler.utils [None req-7a3abd4f-f52e-4681-a9d6-d7173b7221d8 ecfd2efbf3c043efa11039ef1193ea4a 4f4024496c204a2e9a9e2cd415f9771c - - default default] Failed to compute_task_build_instances: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance e6e0bc73-796b-4265-b104-a0dd0209da4a.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance e6e0bc73-796b-4265-b104-a0dd0209da4a. 2026-09-14 17:41:55.634 12 WARNING nova.scheduler.utils [None req-7a3abd4f-f52e-4681-a9d6-d7173b7221d8 ecfd2efbf3c043efa11039ef1193ea4a 4f4024496c204a2e9a9e2cd415f9771c - - default default] [instance: e6e0bc73-796b-4265-b104-a0dd0209da4a] Setting instance to ERROR state.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance e6e0bc73-796b-4265-b104-a0dd0209da4a. 2026-09-14 17:41:55.702 12 WARNING neutronclient.v2_0.client [None req-7a3abd4f-f52e-4681-a9d6-d7173b7221d8 ecfd2efbf3c043efa11039ef1193ea4a 4f4024496c204a2e9a9e2cd415f9771c - - 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 e6e0bc73-796b-4265-b104-a0dd0209da4a. 2026-09-14 17:41:55.740 12 WARNING neutronclient.v2_0.client [None req-7a3abd4f-f52e-4681-a9d6-d7173b7221d8 ecfd2efbf3c043efa11039ef1193ea4a 4f4024496c204a2e9a9e2cd415f9771c - - 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 e6e0bc73-796b-4265-b104-a0dd0209da4a.