+ exec nova-conductor --config-file /etc/nova/nova.conf 2026-09-14 16:57:13.050 1 INFO nova.utils [None req-916c8e64-9fb9-4599-9cf4-8761a8519d98 - - - - - -] The cell worker thread pool MainProcess.cell_worker is initialized 2026-09-14 16:57:13.289 1 INFO nova.utils [None req-916c8e64-9fb9-4599-9cf4-8761a8519d98 - - - - - -] The cell worker thread pool MainProcess.cell_worker is shutting down 2026-09-14 16:57:14.289 1 INFO nova.utils [None req-916c8e64-9fb9-4599-9cf4-8761a8519d98 - - - - - -] The cell worker thread pool MainProcess.cell_worker is closed 2026-09-14 16:57:14.292 1 WARNING oslo_service.backend._threading.service [None req-916c8e64-9fb9-4599-9cf4-8761a8519d98 - - - - - -] Service Service is not picklable with spawn; falling back to fork. Please make the service spawn-safe to avoid this fallback. 2026-09-14 16:57:14.306 1 WARNING oslo_config.cfg [None req-916c8e64-9fb9-4599-9cf4-8761a8519d98 - - - - - -] 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 16:57:14.364 10 INFO nova.service [-] Starting conductor node (version 33.1.0) 2026-09-14 16:57:14.393 12 INFO nova.service [-] Starting conductor node (version 33.1.0) 2026-09-14 17:40:18.769 12 INFO nova.utils [None req-f63f25ae-42cf-4665-9909-f08584341db0 d96b960e20474e739d4fc835d3f054a6 79b081ee8a5e4769acecebbb4e970b9d - - default default] The cell worker thread pool ForkProcess-2.cell_worker is initialized 2026-09-14 17:40:18.996 12 INFO nova.compute.rpcapi [None req-7d9285ec-efe6-4205-bb42-f300b507bad1 - - - - - -] Automatically selected compute RPC version 6.5 from minimum service version 72 2026-09-14 17:40:25.463 10 INFO nova.utils [None req-77228857-2992-4e64-9ad7-15b6900ea3a9 780f5eb67a83480d843dca03d57e13f6 7f50b78b81074ecd8d05a5180f95d285 - - default default] The cell worker thread pool ForkProcess-1.cell_worker is initialized 2026-09-14 17:40:25.658 10 INFO nova.compute.rpcapi [None req-77e11a2a-ce76-4f44-a1a6-0949cbb692e0 - - - - - -] Automatically selected compute RPC version 6.5 from minimum service version 72 2026-09-14 17:40:34.300 10 ERROR nova.scheduler.utils [None req-f63f25ae-42cf-4665-9909-f08584341db0 d96b960e20474e739d4fc835d3f054a6 79b081ee8a5e4769acecebbb4e970b9d - - default default] [instance: 02e5ad98-a3d8-4e19-be21-53fae5da8589] 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 02e5ad98-a3d8-4e19-be21-53fae5da8589 was re-scheduled: Failure running os_vif plugin plug method: No VIF plugin was found with the name ovs\n'] 2026-09-14 17:40:34.300 10 WARNING nova.scheduler.utils [None req-f63f25ae-42cf-4665-9909-f08584341db0 d96b960e20474e739d4fc835d3f054a6 79b081ee8a5e4769acecebbb4e970b9d - - default default] Failed to compute_task_build_instances: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 02e5ad98-a3d8-4e19-be21-53fae5da8589.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 02e5ad98-a3d8-4e19-be21-53fae5da8589. 2026-09-14 17:40:34.301 10 WARNING nova.scheduler.utils [None req-f63f25ae-42cf-4665-9909-f08584341db0 d96b960e20474e739d4fc835d3f054a6 79b081ee8a5e4769acecebbb4e970b9d - - default default] [instance: 02e5ad98-a3d8-4e19-be21-53fae5da8589] Setting instance to ERROR state.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 02e5ad98-a3d8-4e19-be21-53fae5da8589. 2026-09-14 17:40:34.415 10 WARNING neutronclient.v2_0.client [None req-f63f25ae-42cf-4665-9909-f08584341db0 d96b960e20474e739d4fc835d3f054a6 79b081ee8a5e4769acecebbb4e970b9d - - 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 02e5ad98-a3d8-4e19-be21-53fae5da8589. 2026-09-14 17:40:35.161 10 WARNING neutronclient.v2_0.client [None req-f63f25ae-42cf-4665-9909-f08584341db0 d96b960e20474e739d4fc835d3f054a6 79b081ee8a5e4769acecebbb4e970b9d - - 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 02e5ad98-a3d8-4e19-be21-53fae5da8589. 2026-09-14 17:40:39.721 12 ERROR nova.scheduler.utils [None req-77228857-2992-4e64-9ad7-15b6900ea3a9 780f5eb67a83480d843dca03d57e13f6 7f50b78b81074ecd8d05a5180f95d285 - - default default] [instance: ea448d6b-b906-4762-846e-3b76cf21f160] 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 ea448d6b-b906-4762-846e-3b76cf21f160 was re-scheduled: Failure running os_vif plugin plug method: No VIF plugin was found with the name ovs\n'] 2026-09-14 17:40:39.723 12 WARNING nova.scheduler.utils [None req-77228857-2992-4e64-9ad7-15b6900ea3a9 780f5eb67a83480d843dca03d57e13f6 7f50b78b81074ecd8d05a5180f95d285 - - default default] Failed to compute_task_build_instances: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance ea448d6b-b906-4762-846e-3b76cf21f160.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance ea448d6b-b906-4762-846e-3b76cf21f160. 2026-09-14 17:40:39.723 12 WARNING nova.scheduler.utils [None req-77228857-2992-4e64-9ad7-15b6900ea3a9 780f5eb67a83480d843dca03d57e13f6 7f50b78b81074ecd8d05a5180f95d285 - - default default] [instance: ea448d6b-b906-4762-846e-3b76cf21f160] Setting instance to ERROR state.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance ea448d6b-b906-4762-846e-3b76cf21f160. 2026-09-14 17:40:39.901 12 WARNING neutronclient.v2_0.client [None req-77228857-2992-4e64-9ad7-15b6900ea3a9 780f5eb67a83480d843dca03d57e13f6 7f50b78b81074ecd8d05a5180f95d285 - - 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 ea448d6b-b906-4762-846e-3b76cf21f160. 2026-09-14 17:40:40.723 12 WARNING neutronclient.v2_0.client [None req-77228857-2992-4e64-9ad7-15b6900ea3a9 780f5eb67a83480d843dca03d57e13f6 7f50b78b81074ecd8d05a5180f95d285 - - 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 ea448d6b-b906-4762-846e-3b76cf21f160. 2026-09-14 17:40:49.624 10 ERROR nova.scheduler.utils [None req-64bbd516-3ebe-4203-aa17-bb2a70edf67a a6bc003ca6d843ddb5be8d7a666e5bde 4fc0056c1bca446f886787890bace195 - - default default] [instance: 86481bec-c2f7-4239-8e02-82402c61389a] 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 86481bec-c2f7-4239-8e02-82402c61389a was re-scheduled: Failure running os_vif plugin plug method: No VIF plugin was found with the name ovs\n'] 2026-09-14 17:40:49.627 10 WARNING nova.scheduler.utils [None req-64bbd516-3ebe-4203-aa17-bb2a70edf67a a6bc003ca6d843ddb5be8d7a666e5bde 4fc0056c1bca446f886787890bace195 - - default default] Failed to compute_task_build_instances: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 86481bec-c2f7-4239-8e02-82402c61389a.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 86481bec-c2f7-4239-8e02-82402c61389a. 2026-09-14 17:40:49.627 10 WARNING nova.scheduler.utils [None req-64bbd516-3ebe-4203-aa17-bb2a70edf67a a6bc003ca6d843ddb5be8d7a666e5bde 4fc0056c1bca446f886787890bace195 - - default default] [instance: 86481bec-c2f7-4239-8e02-82402c61389a] Setting instance to ERROR state.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 86481bec-c2f7-4239-8e02-82402c61389a. 2026-09-14 17:40:49.696 10 WARNING neutronclient.v2_0.client [None req-64bbd516-3ebe-4203-aa17-bb2a70edf67a a6bc003ca6d843ddb5be8d7a666e5bde 4fc0056c1bca446f886787890bace195 - - 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 86481bec-c2f7-4239-8e02-82402c61389a. 2026-09-14 17:40:49.728 10 WARNING neutronclient.v2_0.client [None req-64bbd516-3ebe-4203-aa17-bb2a70edf67a a6bc003ca6d843ddb5be8d7a666e5bde 4fc0056c1bca446f886787890bace195 - - 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 86481bec-c2f7-4239-8e02-82402c61389a. 2026-09-14 17:41:17.601 10 ERROR nova.scheduler.utils [None req-e5828f91-fcb3-4542-bf44-987d0b47fa61 8511fd53fc264b9fb403ac4fd775b2f9 a6213917d99f4052934a4df910489ba4 - - default default] [instance: d9c9541b-c28f-465d-af07-6a0bc8ca9481] 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 d9c9541b-c28f-465d-af07-6a0bc8ca9481 was re-scheduled: Failure running os_vif plugin plug method: No VIF plugin was found with the name ovs\n'] 2026-09-14 17:41:17.602 10 WARNING nova.scheduler.utils [None req-e5828f91-fcb3-4542-bf44-987d0b47fa61 8511fd53fc264b9fb403ac4fd775b2f9 a6213917d99f4052934a4df910489ba4 - - default default] Failed to compute_task_build_instances: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance d9c9541b-c28f-465d-af07-6a0bc8ca9481.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance d9c9541b-c28f-465d-af07-6a0bc8ca9481. 2026-09-14 17:41:17.602 10 WARNING nova.scheduler.utils [None req-e5828f91-fcb3-4542-bf44-987d0b47fa61 8511fd53fc264b9fb403ac4fd775b2f9 a6213917d99f4052934a4df910489ba4 - - default default] [instance: d9c9541b-c28f-465d-af07-6a0bc8ca9481] Setting instance to ERROR state.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance d9c9541b-c28f-465d-af07-6a0bc8ca9481. 2026-09-14 17:41:17.659 10 WARNING neutronclient.v2_0.client [None req-e5828f91-fcb3-4542-bf44-987d0b47fa61 8511fd53fc264b9fb403ac4fd775b2f9 a6213917d99f4052934a4df910489ba4 - - 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 d9c9541b-c28f-465d-af07-6a0bc8ca9481. 2026-09-14 17:41:17.696 10 WARNING neutronclient.v2_0.client [None req-e5828f91-fcb3-4542-bf44-987d0b47fa61 8511fd53fc264b9fb403ac4fd775b2f9 a6213917d99f4052934a4df910489ba4 - - 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 d9c9541b-c28f-465d-af07-6a0bc8ca9481. 2026-09-14 17:41:47.527 12 ERROR nova.scheduler.utils [None req-5f596d06-d172-404d-bf0f-1fcea5fd4079 0bc9ebc3af7f41c99494063d0c89f9fe 3d057c3992f44d629866ab7e9f1afc93 - - default default] [instance: a7fa9404-3d29-425f-aab4-0a30b048cc1b] 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 a7fa9404-3d29-425f-aab4-0a30b048cc1b was re-scheduled: Failure running os_vif plugin plug method: No VIF plugin was found with the name ovs\n'] 2026-09-14 17:41:47.528 12 WARNING nova.scheduler.utils [None req-5f596d06-d172-404d-bf0f-1fcea5fd4079 0bc9ebc3af7f41c99494063d0c89f9fe 3d057c3992f44d629866ab7e9f1afc93 - - default default] Failed to compute_task_build_instances: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance a7fa9404-3d29-425f-aab4-0a30b048cc1b.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance a7fa9404-3d29-425f-aab4-0a30b048cc1b. 2026-09-14 17:41:47.529 12 WARNING nova.scheduler.utils [None req-5f596d06-d172-404d-bf0f-1fcea5fd4079 0bc9ebc3af7f41c99494063d0c89f9fe 3d057c3992f44d629866ab7e9f1afc93 - - default default] [instance: a7fa9404-3d29-425f-aab4-0a30b048cc1b] Setting instance to ERROR state.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance a7fa9404-3d29-425f-aab4-0a30b048cc1b. 2026-09-14 17:41:47.582 12 WARNING neutronclient.v2_0.client [None req-5f596d06-d172-404d-bf0f-1fcea5fd4079 0bc9ebc3af7f41c99494063d0c89f9fe 3d057c3992f44d629866ab7e9f1afc93 - - 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 a7fa9404-3d29-425f-aab4-0a30b048cc1b. 2026-09-14 17:41:47.612 12 WARNING neutronclient.v2_0.client [None req-5f596d06-d172-404d-bf0f-1fcea5fd4079 0bc9ebc3af7f41c99494063d0c89f9fe 3d057c3992f44d629866ab7e9f1afc93 - - 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 a7fa9404-3d29-425f-aab4-0a30b048cc1b. 2026-09-14 17:41:50.309 12 ERROR nova.scheduler.utils [None req-23fc45c6-acd2-4b11-ab68-fc4986a5460d bd150f89f24b400f8549d0d66fc9de85 6e5ea933316644398fd68a065a38c9f7 - - default default] [instance: 68c5f510-5d32-4da2-ba5f-bbf0a01ec385] 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 68c5f510-5d32-4da2-ba5f-bbf0a01ec385 was re-scheduled: Failure running os_vif plugin plug method: No VIF plugin was found with the name ovs\n'] 2026-09-14 17:41:50.310 12 WARNING nova.scheduler.utils [None req-23fc45c6-acd2-4b11-ab68-fc4986a5460d bd150f89f24b400f8549d0d66fc9de85 6e5ea933316644398fd68a065a38c9f7 - - default default] Failed to compute_task_build_instances: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 68c5f510-5d32-4da2-ba5f-bbf0a01ec385.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 68c5f510-5d32-4da2-ba5f-bbf0a01ec385. 2026-09-14 17:41:50.311 12 WARNING nova.scheduler.utils [None req-23fc45c6-acd2-4b11-ab68-fc4986a5460d bd150f89f24b400f8549d0d66fc9de85 6e5ea933316644398fd68a065a38c9f7 - - default default] [instance: 68c5f510-5d32-4da2-ba5f-bbf0a01ec385] Setting instance to ERROR state.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 68c5f510-5d32-4da2-ba5f-bbf0a01ec385. 2026-09-14 17:41:50.386 12 WARNING neutronclient.v2_0.client [None req-23fc45c6-acd2-4b11-ab68-fc4986a5460d bd150f89f24b400f8549d0d66fc9de85 6e5ea933316644398fd68a065a38c9f7 - - 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 68c5f510-5d32-4da2-ba5f-bbf0a01ec385. 2026-09-14 17:41:50.431 12 WARNING neutronclient.v2_0.client [None req-23fc45c6-acd2-4b11-ab68-fc4986a5460d bd150f89f24b400f8549d0d66fc9de85 6e5ea933316644398fd68a065a38c9f7 - - 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 68c5f510-5d32-4da2-ba5f-bbf0a01ec385. 2026-09-14 17:42:16.091 10 ERROR nova.scheduler.utils [None req-70d70f76-4093-4d16-b3b6-2b7d3d2e6a51 170c14937a494a87903c8d599b34ed33 5219b0ae8cf74f0fb5003d5496254aff - - default default] [instance: 8c963d58-4be3-43ae-91f5-0fef928755f8] 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 8c963d58-4be3-43ae-91f5-0fef928755f8 was re-scheduled: Failure running os_vif plugin plug method: No VIF plugin was found with the name ovs\n'] 2026-09-14 17:42:16.092 10 WARNING nova.scheduler.utils [None req-70d70f76-4093-4d16-b3b6-2b7d3d2e6a51 170c14937a494a87903c8d599b34ed33 5219b0ae8cf74f0fb5003d5496254aff - - default default] Failed to compute_task_build_instances: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 8c963d58-4be3-43ae-91f5-0fef928755f8.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 8c963d58-4be3-43ae-91f5-0fef928755f8. 2026-09-14 17:42:16.093 10 WARNING nova.scheduler.utils [None req-70d70f76-4093-4d16-b3b6-2b7d3d2e6a51 170c14937a494a87903c8d599b34ed33 5219b0ae8cf74f0fb5003d5496254aff - - default default] [instance: 8c963d58-4be3-43ae-91f5-0fef928755f8] Setting instance to ERROR state.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 8c963d58-4be3-43ae-91f5-0fef928755f8. 2026-09-14 17:42:16.164 10 WARNING neutronclient.v2_0.client [None req-70d70f76-4093-4d16-b3b6-2b7d3d2e6a51 170c14937a494a87903c8d599b34ed33 5219b0ae8cf74f0fb5003d5496254aff - - 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 8c963d58-4be3-43ae-91f5-0fef928755f8. 2026-09-14 17:42:16.261 10 WARNING neutronclient.v2_0.client [None req-70d70f76-4093-4d16-b3b6-2b7d3d2e6a51 170c14937a494a87903c8d599b34ed33 5219b0ae8cf74f0fb5003d5496254aff - - 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 8c963d58-4be3-43ae-91f5-0fef928755f8. 2026-09-14 17:42:18.142 12 ERROR nova.scheduler.utils [None req-4358dfb1-ec2a-4b7e-a42c-abe8430ed7f4 b46b9159802149e8b2fb253de8a3c287 eef1135a45e740929c837c29910aa05d - - default default] [instance: b71629c6-3494-4b96-ba53-033c8b8723b4] 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 b71629c6-3494-4b96-ba53-033c8b8723b4 was re-scheduled: Failure running os_vif plugin plug method: No VIF plugin was found with the name ovs\n'] 2026-09-14 17:42:18.143 12 WARNING nova.scheduler.utils [None req-4358dfb1-ec2a-4b7e-a42c-abe8430ed7f4 b46b9159802149e8b2fb253de8a3c287 eef1135a45e740929c837c29910aa05d - - default default] Failed to compute_task_build_instances: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance b71629c6-3494-4b96-ba53-033c8b8723b4.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance b71629c6-3494-4b96-ba53-033c8b8723b4. 2026-09-14 17:42:18.143 12 WARNING nova.scheduler.utils [None req-4358dfb1-ec2a-4b7e-a42c-abe8430ed7f4 b46b9159802149e8b2fb253de8a3c287 eef1135a45e740929c837c29910aa05d - - default default] [instance: b71629c6-3494-4b96-ba53-033c8b8723b4] Setting instance to ERROR state.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance b71629c6-3494-4b96-ba53-033c8b8723b4. 2026-09-14 17:42:18.235 12 WARNING neutronclient.v2_0.client [None req-4358dfb1-ec2a-4b7e-a42c-abe8430ed7f4 b46b9159802149e8b2fb253de8a3c287 eef1135a45e740929c837c29910aa05d - - 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 b71629c6-3494-4b96-ba53-033c8b8723b4. 2026-09-14 17:42:18.491 12 WARNING neutronclient.v2_0.client [None req-4358dfb1-ec2a-4b7e-a42c-abe8430ed7f4 b46b9159802149e8b2fb253de8a3c287 eef1135a45e740929c837c29910aa05d - - 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 b71629c6-3494-4b96-ba53-033c8b8723b4. 2026-09-14 17:42:42.106 12 ERROR nova.scheduler.utils [None req-9d4d0ca1-d0a2-42c2-a07d-366176dea77c 9a08ade6208644848c87c53cd4c2cb0e 0bdfa11909e049a183bb9dd8ee85bece - - default default] [instance: a14411e7-8ddf-4eb5-ac80-18e5906b48e9] 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 a14411e7-8ddf-4eb5-ac80-18e5906b48e9 was re-scheduled: Failure running os_vif plugin plug method: No VIF plugin was found with the name ovs\n'] 2026-09-14 17:42:42.109 12 WARNING nova.scheduler.utils [None req-9d4d0ca1-d0a2-42c2-a07d-366176dea77c 9a08ade6208644848c87c53cd4c2cb0e 0bdfa11909e049a183bb9dd8ee85bece - - default default] Failed to compute_task_build_instances: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance a14411e7-8ddf-4eb5-ac80-18e5906b48e9.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance a14411e7-8ddf-4eb5-ac80-18e5906b48e9. 2026-09-14 17:42:42.109 12 WARNING nova.scheduler.utils [None req-9d4d0ca1-d0a2-42c2-a07d-366176dea77c 9a08ade6208644848c87c53cd4c2cb0e 0bdfa11909e049a183bb9dd8ee85bece - - default default] [instance: a14411e7-8ddf-4eb5-ac80-18e5906b48e9] Setting instance to ERROR state.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance a14411e7-8ddf-4eb5-ac80-18e5906b48e9. 2026-09-14 17:42:42.204 12 WARNING neutronclient.v2_0.client [None req-9d4d0ca1-d0a2-42c2-a07d-366176dea77c 9a08ade6208644848c87c53cd4c2cb0e 0bdfa11909e049a183bb9dd8ee85bece - - 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 a14411e7-8ddf-4eb5-ac80-18e5906b48e9. 2026-09-14 17:42:42.233 12 WARNING neutronclient.v2_0.client [None req-9d4d0ca1-d0a2-42c2-a07d-366176dea77c 9a08ade6208644848c87c53cd4c2cb0e 0bdfa11909e049a183bb9dd8ee85bece - - 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 a14411e7-8ddf-4eb5-ac80-18e5906b48e9. 2026-09-14 17:43:40.352 12 ERROR nova.scheduler.utils [None req-39b7e5e8-02b5-40c2-a4d0-f2611ec85954 4ea323302cda449abf80b4cb53e6ab25 a13fda6760b1472ca8f3e0b8d5d38a73 - - default default] [instance: 8ea418b6-5908-4475-b48a-af857db0af3b] 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 8ea418b6-5908-4475-b48a-af857db0af3b was re-scheduled: Failure running os_vif plugin plug method: No VIF plugin was found with the name ovs\n'] 2026-09-14 17:43:40.353 12 WARNING nova.scheduler.utils [None req-39b7e5e8-02b5-40c2-a4d0-f2611ec85954 4ea323302cda449abf80b4cb53e6ab25 a13fda6760b1472ca8f3e0b8d5d38a73 - - default default] Failed to compute_task_build_instances: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 8ea418b6-5908-4475-b48a-af857db0af3b.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 8ea418b6-5908-4475-b48a-af857db0af3b. 2026-09-14 17:43:40.353 12 WARNING nova.scheduler.utils [None req-39b7e5e8-02b5-40c2-a4d0-f2611ec85954 4ea323302cda449abf80b4cb53e6ab25 a13fda6760b1472ca8f3e0b8d5d38a73 - - default default] [instance: 8ea418b6-5908-4475-b48a-af857db0af3b] Setting instance to ERROR state.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 8ea418b6-5908-4475-b48a-af857db0af3b. 2026-09-14 17:43:40.417 12 WARNING neutronclient.v2_0.client [None req-39b7e5e8-02b5-40c2-a4d0-f2611ec85954 4ea323302cda449abf80b4cb53e6ab25 a13fda6760b1472ca8f3e0b8d5d38a73 - - 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 8ea418b6-5908-4475-b48a-af857db0af3b. 2026-09-14 17:43:40.533 12 WARNING neutronclient.v2_0.client [None req-39b7e5e8-02b5-40c2-a4d0-f2611ec85954 4ea323302cda449abf80b4cb53e6ab25 a13fda6760b1472ca8f3e0b8d5d38a73 - - 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 8ea418b6-5908-4475-b48a-af857db0af3b.