+ exec nova-conductor --config-file /etc/nova/nova.conf
2026-07-23 03:55:52.873 1 INFO nova.utils [None req-039081fe-5d75-45f7-8562-6133d145675c - - - - - -] The cell worker thread pool MainProcess.cell_worker is initialized
2026-07-23 03:55:53.046 1 INFO nova.utils [None req-039081fe-5d75-45f7-8562-6133d145675c - - - - - -] The cell worker thread pool MainProcess.cell_worker is shutting down
2026-07-23 03:55:54.046 1 INFO nova.utils [None req-039081fe-5d75-45f7-8562-6133d145675c - - - - - -] The cell worker thread pool MainProcess.cell_worker is closed
2026-07-23 03:55:54.049 1 WARNING oslo_service.backend._threading.service [None req-039081fe-5d75-45f7-8562-6133d145675c - - - - - -] Service Service is not picklable with spawn; falling back to fork. Please make the service spawn-safe to avoid this fallback.
2026-07-23 03:55:54.059 1 WARNING oslo_config.cfg [None req-039081fe-5d75-45f7-8562-6133d145675c - - - - - -] Deprecated: Option "api_servers" from group "glance" is deprecated for removal (
Support for image service configuration via standard keystoneauth1 Adapter
options was added in the 17.0.0 Queens release. The api_servers option was
retained temporarily to allow consumers time to cut over to a real load
balancing solution.
).  Its value may be silently ignored in the future.
2026-07-23 03:55:54.106 10 INFO nova.service [-] Starting conductor node (version 33.1.0)
2026-07-23 03:55:54.118 12 INFO nova.service [-] Starting conductor node (version 33.1.0)
2026-07-23 04:38:12.051 10 INFO nova.utils [None req-08eb9751-f63c-45ca-a6ca-1390877d8bb4 0e37f116713640ce993fa8b07dfee44f 03e590b8180f45de82a3fe1f46a8cb1f - - default default] The cell worker thread pool ForkProcess-1.cell_worker is initialized
2026-07-23 04:38:12.260 10 INFO nova.compute.rpcapi [None req-55832174-86c4-4325-a9d4-26d34d076de7 - - - - - -] Automatically selected compute RPC version 6.5 from minimum service version 72
2026-07-23 04:38:12.705 12 INFO nova.utils [None req-6417024f-ebd2-45ef-bb12-a31c75eacd1a c1259f4ca32246da9a64a828883540eb 7fd114984e044f1091baadcc361b38f9 - - default default] The cell worker thread pool ForkProcess-2.cell_worker is initialized
2026-07-23 04:38:12.936 12 INFO nova.compute.rpcapi [None req-c49a27f6-7010-44ac-913b-04765998172b - - - - - -] Automatically selected compute RPC version 6.5 from minimum service version 72
2026-07-23 04:38:28.941 12 ERROR nova.scheduler.utils [None req-08eb9751-f63c-45ca-a6ca-1390877d8bb4 0e37f116713640ce993fa8b07dfee44f 03e590b8180f45de82a3fe1f46a8cb1f - - default default] [instance: c8f78be8-5f22-4b25-b4cb-aea5288d8cbe] 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 c8f78be8-5f22-4b25-b4cb-aea5288d8cbe was re-scheduled: Failure running os_vif plugin plug method: No VIF plugin was found with the name ovs\n']
2026-07-23 04:38:28.942 12 WARNING nova.scheduler.utils [None req-08eb9751-f63c-45ca-a6ca-1390877d8bb4 0e37f116713640ce993fa8b07dfee44f 03e590b8180f45de82a3fe1f46a8cb1f - - default default] Failed to compute_task_build_instances: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance c8f78be8-5f22-4b25-b4cb-aea5288d8cbe.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance c8f78be8-5f22-4b25-b4cb-aea5288d8cbe.
2026-07-23 04:38:28.943 12 WARNING nova.scheduler.utils [None req-08eb9751-f63c-45ca-a6ca-1390877d8bb4 0e37f116713640ce993fa8b07dfee44f 03e590b8180f45de82a3fe1f46a8cb1f - - default default] [instance: c8f78be8-5f22-4b25-b4cb-aea5288d8cbe] Setting instance to ERROR state.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance c8f78be8-5f22-4b25-b4cb-aea5288d8cbe.
2026-07-23 04:38:29.052 12 WARNING neutronclient.v2_0.client [None req-08eb9751-f63c-45ca-a6ca-1390877d8bb4 0e37f116713640ce993fa8b07dfee44f 03e590b8180f45de82a3fe1f46a8cb1f - - 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 c8f78be8-5f22-4b25-b4cb-aea5288d8cbe.
2026-07-23 04:38:29.623 12 WARNING neutronclient.v2_0.client [None req-08eb9751-f63c-45ca-a6ca-1390877d8bb4 0e37f116713640ce993fa8b07dfee44f 03e590b8180f45de82a3fe1f46a8cb1f - - 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 c8f78be8-5f22-4b25-b4cb-aea5288d8cbe.
2026-07-23 04:38:31.567 12 ERROR nova.scheduler.utils [None req-6417024f-ebd2-45ef-bb12-a31c75eacd1a c1259f4ca32246da9a64a828883540eb 7fd114984e044f1091baadcc361b38f9 - - default default] [instance: f505362b-1223-40b2-8003-c90157eee017] 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 f505362b-1223-40b2-8003-c90157eee017 was re-scheduled: Failure running os_vif plugin plug method: No VIF plugin was found with the name ovs\n']
2026-07-23 04:38:31.568 12 WARNING nova.scheduler.utils [None req-6417024f-ebd2-45ef-bb12-a31c75eacd1a c1259f4ca32246da9a64a828883540eb 7fd114984e044f1091baadcc361b38f9 - - default default] Failed to compute_task_build_instances: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance f505362b-1223-40b2-8003-c90157eee017.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance f505362b-1223-40b2-8003-c90157eee017.
2026-07-23 04:38:31.568 12 WARNING nova.scheduler.utils [None req-6417024f-ebd2-45ef-bb12-a31c75eacd1a c1259f4ca32246da9a64a828883540eb 7fd114984e044f1091baadcc361b38f9 - - default default] [instance: f505362b-1223-40b2-8003-c90157eee017] Setting instance to ERROR state.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance f505362b-1223-40b2-8003-c90157eee017.
2026-07-23 04:38:31.607 12 WARNING neutronclient.v2_0.client [None req-6417024f-ebd2-45ef-bb12-a31c75eacd1a c1259f4ca32246da9a64a828883540eb 7fd114984e044f1091baadcc361b38f9 - - 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 f505362b-1223-40b2-8003-c90157eee017.
2026-07-23 04:38:31.630 12 WARNING neutronclient.v2_0.client [None req-6417024f-ebd2-45ef-bb12-a31c75eacd1a c1259f4ca32246da9a64a828883540eb 7fd114984e044f1091baadcc361b38f9 - - 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 f505362b-1223-40b2-8003-c90157eee017.
2026-07-23 04:38:34.088 12 ERROR nova.scheduler.utils [None req-b6111586-8447-46ae-acd7-53a143c0a792 78bc895721b44df5beb1acf3f0031961 79a89cb8037140b0a4f0f41b971fa936 - - default default] [instance: c187e731-296b-4241-8a18-896439040c90] 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 c187e731-296b-4241-8a18-896439040c90 was re-scheduled: Failure running os_vif plugin plug method: No VIF plugin was found with the name ovs\n']
2026-07-23 04:38:34.089 12 WARNING nova.scheduler.utils [None req-b6111586-8447-46ae-acd7-53a143c0a792 78bc895721b44df5beb1acf3f0031961 79a89cb8037140b0a4f0f41b971fa936 - - default default] Failed to compute_task_build_instances: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance c187e731-296b-4241-8a18-896439040c90.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance c187e731-296b-4241-8a18-896439040c90.
2026-07-23 04:38:34.090 12 WARNING nova.scheduler.utils [None req-b6111586-8447-46ae-acd7-53a143c0a792 78bc895721b44df5beb1acf3f0031961 79a89cb8037140b0a4f0f41b971fa936 - - default default] [instance: c187e731-296b-4241-8a18-896439040c90] Setting instance to ERROR state.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance c187e731-296b-4241-8a18-896439040c90.
2026-07-23 04:38:34.137 12 WARNING neutronclient.v2_0.client [None req-b6111586-8447-46ae-acd7-53a143c0a792 78bc895721b44df5beb1acf3f0031961 79a89cb8037140b0a4f0f41b971fa936 - - 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 c187e731-296b-4241-8a18-896439040c90.
2026-07-23 04:38:34.518 12 WARNING neutronclient.v2_0.client [None req-b6111586-8447-46ae-acd7-53a143c0a792 78bc895721b44df5beb1acf3f0031961 79a89cb8037140b0a4f0f41b971fa936 - - 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 c187e731-296b-4241-8a18-896439040c90.
2026-07-23 04:38:59.688 12 ERROR nova.scheduler.utils [None req-7d42f722-ac86-48f7-8981-ba6830948ee5 1108b854894f44a290901357146ffc72 485591c8b539458e864a344dd6c04621 - - default default] [instance: d35484e4-5f2f-44b4-9a99-b12cb89a6ad5] 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 d35484e4-5f2f-44b4-9a99-b12cb89a6ad5 was re-scheduled: Failure running os_vif plugin plug method: No VIF plugin was found with the name ovs\n']
2026-07-23 04:38:59.689 12 WARNING nova.scheduler.utils [None req-7d42f722-ac86-48f7-8981-ba6830948ee5 1108b854894f44a290901357146ffc72 485591c8b539458e864a344dd6c04621 - - default default] Failed to compute_task_build_instances: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance d35484e4-5f2f-44b4-9a99-b12cb89a6ad5.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance d35484e4-5f2f-44b4-9a99-b12cb89a6ad5.
2026-07-23 04:38:59.690 12 WARNING nova.scheduler.utils [None req-7d42f722-ac86-48f7-8981-ba6830948ee5 1108b854894f44a290901357146ffc72 485591c8b539458e864a344dd6c04621 - - default default] [instance: d35484e4-5f2f-44b4-9a99-b12cb89a6ad5] Setting instance to ERROR state.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance d35484e4-5f2f-44b4-9a99-b12cb89a6ad5.
2026-07-23 04:38:59.740 12 WARNING neutronclient.v2_0.client [None req-7d42f722-ac86-48f7-8981-ba6830948ee5 1108b854894f44a290901357146ffc72 485591c8b539458e864a344dd6c04621 - - 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 d35484e4-5f2f-44b4-9a99-b12cb89a6ad5.
2026-07-23 04:39:00.105 12 WARNING neutronclient.v2_0.client [None req-7d42f722-ac86-48f7-8981-ba6830948ee5 1108b854894f44a290901357146ffc72 485591c8b539458e864a344dd6c04621 - - 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 d35484e4-5f2f-44b4-9a99-b12cb89a6ad5.
2026-07-23 04:39:09.363 12 ERROR nova.scheduler.utils [None req-032d4cc7-b564-4828-9e19-b826fc17eccb 9d03978967d64e5aad04866c3005db24 1952c76325f84e94a1007fa0d6b24c1e - - default default] [instance: 47e9eae9-9ded-4dc4-86a7-d81f78dd2246] 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 47e9eae9-9ded-4dc4-86a7-d81f78dd2246 was re-scheduled: Failure running os_vif plugin plug method: No VIF plugin was found with the name ovs\n']
2026-07-23 04:39:09.365 12 WARNING nova.scheduler.utils [None req-032d4cc7-b564-4828-9e19-b826fc17eccb 9d03978967d64e5aad04866c3005db24 1952c76325f84e94a1007fa0d6b24c1e - - default default] Failed to compute_task_build_instances: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 47e9eae9-9ded-4dc4-86a7-d81f78dd2246.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 47e9eae9-9ded-4dc4-86a7-d81f78dd2246.
2026-07-23 04:39:09.365 12 WARNING nova.scheduler.utils [None req-032d4cc7-b564-4828-9e19-b826fc17eccb 9d03978967d64e5aad04866c3005db24 1952c76325f84e94a1007fa0d6b24c1e - - default default] [instance: 47e9eae9-9ded-4dc4-86a7-d81f78dd2246] Setting instance to ERROR state.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 47e9eae9-9ded-4dc4-86a7-d81f78dd2246.
2026-07-23 04:39:09.420 12 WARNING neutronclient.v2_0.client [None req-032d4cc7-b564-4828-9e19-b826fc17eccb 9d03978967d64e5aad04866c3005db24 1952c76325f84e94a1007fa0d6b24c1e - - 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 47e9eae9-9ded-4dc4-86a7-d81f78dd2246.
2026-07-23 04:39:09.449 12 WARNING neutronclient.v2_0.client [None req-032d4cc7-b564-4828-9e19-b826fc17eccb 9d03978967d64e5aad04866c3005db24 1952c76325f84e94a1007fa0d6b24c1e - - 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 47e9eae9-9ded-4dc4-86a7-d81f78dd2246.
2026-07-23 04:39:45.551 12 ERROR nova.scheduler.utils [None req-ec533465-663b-4f67-9a8a-4fdb75af1691 a575a1f135e04cdc9adbc4fc2af79073 8afcddfbf46f4fe18f3cfa13d00791c7 - - default default] [instance: 0b2a7f1b-2c51-464c-87ab-6aad1dd54293] 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 0b2a7f1b-2c51-464c-87ab-6aad1dd54293 was re-scheduled: Failure running os_vif plugin plug method: No VIF plugin was found with the name ovs\n']
2026-07-23 04:39:45.553 12 WARNING nova.scheduler.utils [None req-ec533465-663b-4f67-9a8a-4fdb75af1691 a575a1f135e04cdc9adbc4fc2af79073 8afcddfbf46f4fe18f3cfa13d00791c7 - - default default] Failed to compute_task_build_instances: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 0b2a7f1b-2c51-464c-87ab-6aad1dd54293.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 0b2a7f1b-2c51-464c-87ab-6aad1dd54293.
2026-07-23 04:39:45.554 12 WARNING nova.scheduler.utils [None req-ec533465-663b-4f67-9a8a-4fdb75af1691 a575a1f135e04cdc9adbc4fc2af79073 8afcddfbf46f4fe18f3cfa13d00791c7 - - default default] [instance: 0b2a7f1b-2c51-464c-87ab-6aad1dd54293] Setting instance to ERROR state.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 0b2a7f1b-2c51-464c-87ab-6aad1dd54293.
2026-07-23 04:39:45.616 12 WARNING neutronclient.v2_0.client [None req-ec533465-663b-4f67-9a8a-4fdb75af1691 a575a1f135e04cdc9adbc4fc2af79073 8afcddfbf46f4fe18f3cfa13d00791c7 - - 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 0b2a7f1b-2c51-464c-87ab-6aad1dd54293.
2026-07-23 04:39:45.730 12 WARNING neutronclient.v2_0.client [None req-ec533465-663b-4f67-9a8a-4fdb75af1691 a575a1f135e04cdc9adbc4fc2af79073 8afcddfbf46f4fe18f3cfa13d00791c7 - - 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 0b2a7f1b-2c51-464c-87ab-6aad1dd54293.
2026-07-23 04:40:37.805 10 ERROR nova.scheduler.utils [None req-9b4f1eba-04e4-4785-9975-68c8ca5b1ebb 0c4de307365b4307a9858c0857fd254f 4855a0dedac1445083085d121a40360e - - default default] [instance: 3c042675-e80f-4e49-bfab-269166015667] 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 3c042675-e80f-4e49-bfab-269166015667 was re-scheduled: Failure running os_vif plugin plug method: No VIF plugin was found with the name ovs\n']
2026-07-23 04:40:37.807 10 WARNING nova.scheduler.utils [None req-9b4f1eba-04e4-4785-9975-68c8ca5b1ebb 0c4de307365b4307a9858c0857fd254f 4855a0dedac1445083085d121a40360e - - default default] Failed to compute_task_build_instances: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 3c042675-e80f-4e49-bfab-269166015667.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 3c042675-e80f-4e49-bfab-269166015667.
2026-07-23 04:40:37.809 10 WARNING nova.scheduler.utils [None req-9b4f1eba-04e4-4785-9975-68c8ca5b1ebb 0c4de307365b4307a9858c0857fd254f 4855a0dedac1445083085d121a40360e - - default default] [instance: 3c042675-e80f-4e49-bfab-269166015667] Setting instance to ERROR state.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 3c042675-e80f-4e49-bfab-269166015667.
2026-07-23 04:40:37.923 10 WARNING neutronclient.v2_0.client [None req-9b4f1eba-04e4-4785-9975-68c8ca5b1ebb 0c4de307365b4307a9858c0857fd254f 4855a0dedac1445083085d121a40360e - - 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 3c042675-e80f-4e49-bfab-269166015667.
2026-07-23 04:40:38.480 10 WARNING neutronclient.v2_0.client [None req-9b4f1eba-04e4-4785-9975-68c8ca5b1ebb 0c4de307365b4307a9858c0857fd254f 4855a0dedac1445083085d121a40360e - - 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 3c042675-e80f-4e49-bfab-269166015667.
2026-07-23 04:41:01.479 10 ERROR nova.scheduler.utils [None req-46011827-043c-410e-8a27-fc950bfc9acd 5c61c73a26ac405180f3ab7a5138112e 7babdecec7ec40d1925975779b7e2ff1 - - default default] [instance: 49f26e2e-5b06-4fbd-a13e-df5d34fa35bd] 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 49f26e2e-5b06-4fbd-a13e-df5d34fa35bd was re-scheduled: Failure running os_vif plugin plug method: No VIF plugin was found with the name ovs\n']
2026-07-23 04:41:01.480 10 WARNING nova.scheduler.utils [None req-46011827-043c-410e-8a27-fc950bfc9acd 5c61c73a26ac405180f3ab7a5138112e 7babdecec7ec40d1925975779b7e2ff1 - - default default] Failed to compute_task_build_instances: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 49f26e2e-5b06-4fbd-a13e-df5d34fa35bd.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 49f26e2e-5b06-4fbd-a13e-df5d34fa35bd.
2026-07-23 04:41:01.480 10 WARNING nova.scheduler.utils [None req-46011827-043c-410e-8a27-fc950bfc9acd 5c61c73a26ac405180f3ab7a5138112e 7babdecec7ec40d1925975779b7e2ff1 - - default default] [instance: 49f26e2e-5b06-4fbd-a13e-df5d34fa35bd] Setting instance to ERROR state.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 49f26e2e-5b06-4fbd-a13e-df5d34fa35bd.
2026-07-23 04:41:01.529 10 WARNING neutronclient.v2_0.client [None req-46011827-043c-410e-8a27-fc950bfc9acd 5c61c73a26ac405180f3ab7a5138112e 7babdecec7ec40d1925975779b7e2ff1 - - 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 49f26e2e-5b06-4fbd-a13e-df5d34fa35bd.
2026-07-23 04:41:01.666 10 WARNING neutronclient.v2_0.client [None req-46011827-043c-410e-8a27-fc950bfc9acd 5c61c73a26ac405180f3ab7a5138112e 7babdecec7ec40d1925975779b7e2ff1 - - 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 49f26e2e-5b06-4fbd-a13e-df5d34fa35bd.
2026-07-23 04:41:13.523 12 ERROR nova.scheduler.utils [None req-1bf94a12-3459-4ab4-a0ef-9043ee7cd3bc a35fc38a67424e51a37f3ff28058185d a02eada9dfa1413c956425f71dc80e9b - - default default] [instance: 89bcd495-b75b-444e-822c-64ec6d342582] 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 89bcd495-b75b-444e-822c-64ec6d342582 was re-scheduled: Failure running os_vif plugin plug method: No VIF plugin was found with the name ovs\n']
2026-07-23 04:41:13.525 12 WARNING nova.scheduler.utils [None req-1bf94a12-3459-4ab4-a0ef-9043ee7cd3bc a35fc38a67424e51a37f3ff28058185d a02eada9dfa1413c956425f71dc80e9b - - default default] Failed to compute_task_build_instances: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 89bcd495-b75b-444e-822c-64ec6d342582.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 89bcd495-b75b-444e-822c-64ec6d342582.
2026-07-23 04:41:13.525 12 WARNING nova.scheduler.utils [None req-1bf94a12-3459-4ab4-a0ef-9043ee7cd3bc a35fc38a67424e51a37f3ff28058185d a02eada9dfa1413c956425f71dc80e9b - - default default] [instance: 89bcd495-b75b-444e-822c-64ec6d342582] Setting instance to ERROR state.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 89bcd495-b75b-444e-822c-64ec6d342582.
2026-07-23 04:41:13.582 12 WARNING neutronclient.v2_0.client [None req-1bf94a12-3459-4ab4-a0ef-9043ee7cd3bc a35fc38a67424e51a37f3ff28058185d a02eada9dfa1413c956425f71dc80e9b - - 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 89bcd495-b75b-444e-822c-64ec6d342582.
2026-07-23 04:41:13.610 12 WARNING neutronclient.v2_0.client [None req-1bf94a12-3459-4ab4-a0ef-9043ee7cd3bc a35fc38a67424e51a37f3ff28058185d a02eada9dfa1413c956425f71dc80e9b - - 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 89bcd495-b75b-444e-822c-64ec6d342582.
2026-07-23 04:43:14.716 10 ERROR nova.scheduler.utils [None req-112a044b-6da6-43e9-bb55-58f2417f11bb 342d4985dfec443c8138241f41316efb 27f814affd2a403988952a044462ed6e - - default default] [instance: 9621d8bc-8175-499b-b670-08a664fd850c] 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 9621d8bc-8175-499b-b670-08a664fd850c was re-scheduled: Failure running os_vif plugin plug method: No VIF plugin was found with the name ovs\n']
2026-07-23 04:43:14.717 10 WARNING nova.scheduler.utils [None req-112a044b-6da6-43e9-bb55-58f2417f11bb 342d4985dfec443c8138241f41316efb 27f814affd2a403988952a044462ed6e - - default default] Failed to compute_task_build_instances: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 9621d8bc-8175-499b-b670-08a664fd850c.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 9621d8bc-8175-499b-b670-08a664fd850c.
2026-07-23 04:43:14.717 10 WARNING nova.scheduler.utils [None req-112a044b-6da6-43e9-bb55-58f2417f11bb 342d4985dfec443c8138241f41316efb 27f814affd2a403988952a044462ed6e - - default default] [instance: 9621d8bc-8175-499b-b670-08a664fd850c] Setting instance to ERROR state.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 9621d8bc-8175-499b-b670-08a664fd850c.
2026-07-23 04:43:14.783 10 WARNING neutronclient.v2_0.client [None req-112a044b-6da6-43e9-bb55-58f2417f11bb 342d4985dfec443c8138241f41316efb 27f814affd2a403988952a044462ed6e - - 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 9621d8bc-8175-499b-b670-08a664fd850c.
2026-07-23 04:43:14.821 10 WARNING neutronclient.v2_0.client [None req-112a044b-6da6-43e9-bb55-58f2417f11bb 342d4985dfec443c8138241f41316efb 27f814affd2a403988952a044462ed6e - - 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 9621d8bc-8175-499b-b670-08a664fd850c.