+ exec nova-conductor --config-file /etc/nova/nova.conf
2026-07-21 07:14:17.090 1 INFO nova.utils [None req-79f630ce-583b-4cb9-8f39-8392fe497636 - - - - - -] The cell worker thread pool MainProcess.cell_worker is initialized
2026-07-21 07:14:17.243 1 INFO nova.utils [None req-79f630ce-583b-4cb9-8f39-8392fe497636 - - - - - -] The cell worker thread pool MainProcess.cell_worker is shutting down
2026-07-21 07:14:18.243 1 INFO nova.utils [None req-79f630ce-583b-4cb9-8f39-8392fe497636 - - - - - -] The cell worker thread pool MainProcess.cell_worker is closed
2026-07-21 07:14:18.246 1 WARNING oslo_service.backend._threading.service [None req-79f630ce-583b-4cb9-8f39-8392fe497636 - - - - - -] Service Service is not picklable with spawn; falling back to fork. Please make the service spawn-safe to avoid this fallback.
2026-07-21 07:14:18.254 1 WARNING oslo_config.cfg [None req-79f630ce-583b-4cb9-8f39-8392fe497636 - - - - - -] 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.
2026-07-21 07:14:18.299 10 INFO nova.service [-] Starting conductor node (version 33.1.0)
2026-07-21 07:14:18.312 12 INFO nova.service [-] Starting conductor node (version 33.1.0)
2026-07-21 07:53:08.902 12 INFO nova.utils [None req-74dc2329-6d20-4a9e-8168-5245143d55cb 0d115b45d6714d13b5f4b782adbde9ff 1f9a86a7e1c343deaaf248d4c558d192 - - default default] The cell worker thread pool ForkProcess-2.cell_worker is initialized
2026-07-21 07:53:09.053 12 INFO nova.compute.rpcapi [None req-0ef78032-a095-4db6-bfff-9b15359f25ce - - - - - -] Automatically selected compute RPC version 6.5 from minimum service version 72
2026-07-21 07:53:09.115 10 INFO nova.utils [None req-95c38513-44f8-41d1-89fe-13cbd2878a00 08c0c2ac9f52477a9d4eac2d5c59e70d 75c9e7f91e3145418cc16c721a457029 - - default default] The cell worker thread pool ForkProcess-1.cell_worker is initialized
2026-07-21 07:53:09.299 10 INFO nova.compute.rpcapi [None req-9a005b98-6b08-4498-9cf7-3dc3f59cb9f6 - - - - - -] Automatically selected compute RPC version 6.5 from minimum service version 72
2026-07-21 07:53:30.400 12 ERROR nova.scheduler.utils [None req-74dc2329-6d20-4a9e-8168-5245143d55cb 0d115b45d6714d13b5f4b782adbde9ff 1f9a86a7e1c343deaaf248d4c558d192 - - default default] [instance: 4df18f27-1ada-4997-897f-7be405508e0f] 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 4df18f27-1ada-4997-897f-7be405508e0f was re-scheduled: Failure running os_vif plugin plug method: No VIF plugin was found with the name ovs\n']
2026-07-21 07:53:30.401 12 WARNING nova.scheduler.utils [None req-74dc2329-6d20-4a9e-8168-5245143d55cb 0d115b45d6714d13b5f4b782adbde9ff 1f9a86a7e1c343deaaf248d4c558d192 - - default default] Failed to compute_task_build_instances: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 4df18f27-1ada-4997-897f-7be405508e0f.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 4df18f27-1ada-4997-897f-7be405508e0f.
2026-07-21 07:53:30.401 12 WARNING nova.scheduler.utils [None req-74dc2329-6d20-4a9e-8168-5245143d55cb 0d115b45d6714d13b5f4b782adbde9ff 1f9a86a7e1c343deaaf248d4c558d192 - - default default] [instance: 4df18f27-1ada-4997-897f-7be405508e0f] Setting instance to ERROR state.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 4df18f27-1ada-4997-897f-7be405508e0f.
2026-07-21 07:53:30.483 12 WARNING neutronclient.v2_0.client [None req-74dc2329-6d20-4a9e-8168-5245143d55cb 0d115b45d6714d13b5f4b782adbde9ff 1f9a86a7e1c343deaaf248d4c558d192 - - 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 4df18f27-1ada-4997-897f-7be405508e0f.
2026-07-21 07:53:30.894 12 WARNING neutronclient.v2_0.client [None req-74dc2329-6d20-4a9e-8168-5245143d55cb 0d115b45d6714d13b5f4b782adbde9ff 1f9a86a7e1c343deaaf248d4c558d192 - - 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 4df18f27-1ada-4997-897f-7be405508e0f.
2026-07-21 07:53:32.432 12 ERROR nova.scheduler.utils [None req-95c38513-44f8-41d1-89fe-13cbd2878a00 08c0c2ac9f52477a9d4eac2d5c59e70d 75c9e7f91e3145418cc16c721a457029 - - default default] [instance: f7d8f33c-4ec6-457f-9b79-1dddb84922c6] 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 f7d8f33c-4ec6-457f-9b79-1dddb84922c6 was re-scheduled: Failure running os_vif plugin plug method: No VIF plugin was found with the name ovs\n']
2026-07-21 07:53:32.433 12 WARNING nova.scheduler.utils [None req-95c38513-44f8-41d1-89fe-13cbd2878a00 08c0c2ac9f52477a9d4eac2d5c59e70d 75c9e7f91e3145418cc16c721a457029 - - default default] Failed to compute_task_build_instances: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance f7d8f33c-4ec6-457f-9b79-1dddb84922c6.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance f7d8f33c-4ec6-457f-9b79-1dddb84922c6.
2026-07-21 07:53:32.433 12 WARNING nova.scheduler.utils [None req-95c38513-44f8-41d1-89fe-13cbd2878a00 08c0c2ac9f52477a9d4eac2d5c59e70d 75c9e7f91e3145418cc16c721a457029 - - default default] [instance: f7d8f33c-4ec6-457f-9b79-1dddb84922c6] Setting instance to ERROR state.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance f7d8f33c-4ec6-457f-9b79-1dddb84922c6.
2026-07-21 07:53:32.475 12 WARNING neutronclient.v2_0.client [None req-95c38513-44f8-41d1-89fe-13cbd2878a00 08c0c2ac9f52477a9d4eac2d5c59e70d 75c9e7f91e3145418cc16c721a457029 - - 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 f7d8f33c-4ec6-457f-9b79-1dddb84922c6.
2026-07-21 07:53:32.644 12 WARNING neutronclient.v2_0.client [None req-95c38513-44f8-41d1-89fe-13cbd2878a00 08c0c2ac9f52477a9d4eac2d5c59e70d 75c9e7f91e3145418cc16c721a457029 - - 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 f7d8f33c-4ec6-457f-9b79-1dddb84922c6.
2026-07-21 07:53:34.684 12 ERROR nova.scheduler.utils [None req-fbf58b60-813c-4691-9b48-b7318eda8cec 95b06d2b034247f8857fb1df64c2e527 f66fae7b0bd74e78a85fd9a55a627854 - - default default] [instance: 99b0eaa4-6da4-4ced-bd3d-e4af08e91a97] 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 99b0eaa4-6da4-4ced-bd3d-e4af08e91a97 was re-scheduled: Failure running os_vif plugin plug method: No VIF plugin was found with the name ovs\n']
2026-07-21 07:53:34.685 12 WARNING nova.scheduler.utils [None req-fbf58b60-813c-4691-9b48-b7318eda8cec 95b06d2b034247f8857fb1df64c2e527 f66fae7b0bd74e78a85fd9a55a627854 - - default default] Failed to compute_task_build_instances: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 99b0eaa4-6da4-4ced-bd3d-e4af08e91a97.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 99b0eaa4-6da4-4ced-bd3d-e4af08e91a97.
2026-07-21 07:53:34.685 12 WARNING nova.scheduler.utils [None req-fbf58b60-813c-4691-9b48-b7318eda8cec 95b06d2b034247f8857fb1df64c2e527 f66fae7b0bd74e78a85fd9a55a627854 - - default default] [instance: 99b0eaa4-6da4-4ced-bd3d-e4af08e91a97] Setting instance to ERROR state.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 99b0eaa4-6da4-4ced-bd3d-e4af08e91a97.
2026-07-21 07:53:34.725 12 WARNING neutronclient.v2_0.client [None req-fbf58b60-813c-4691-9b48-b7318eda8cec 95b06d2b034247f8857fb1df64c2e527 f66fae7b0bd74e78a85fd9a55a627854 - - 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 99b0eaa4-6da4-4ced-bd3d-e4af08e91a97.
2026-07-21 07:53:34.793 12 WARNING neutronclient.v2_0.client [None req-fbf58b60-813c-4691-9b48-b7318eda8cec 95b06d2b034247f8857fb1df64c2e527 f66fae7b0bd74e78a85fd9a55a627854 - - 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 99b0eaa4-6da4-4ced-bd3d-e4af08e91a97.
2026-07-21 07:53:36.690 10 ERROR nova.scheduler.utils [None req-82ac1f63-9078-4c9f-a8b9-13839e490be8 906966eaa3cc44aeaa7bf0bfda124d76 a404d77fe3e74c818ba5f0694ec75f16 - - default default] [instance: a33269c1-3b79-46bd-92f0-ccd22bbd31d1] 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 a33269c1-3b79-46bd-92f0-ccd22bbd31d1 was re-scheduled: Failure running os_vif plugin plug method: No VIF plugin was found with the name ovs\n']
2026-07-21 07:53:36.691 10 WARNING nova.scheduler.utils [None req-82ac1f63-9078-4c9f-a8b9-13839e490be8 906966eaa3cc44aeaa7bf0bfda124d76 a404d77fe3e74c818ba5f0694ec75f16 - - default default] Failed to compute_task_build_instances: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance a33269c1-3b79-46bd-92f0-ccd22bbd31d1.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance a33269c1-3b79-46bd-92f0-ccd22bbd31d1.
2026-07-21 07:53:36.691 10 WARNING nova.scheduler.utils [None req-82ac1f63-9078-4c9f-a8b9-13839e490be8 906966eaa3cc44aeaa7bf0bfda124d76 a404d77fe3e74c818ba5f0694ec75f16 - - default default] [instance: a33269c1-3b79-46bd-92f0-ccd22bbd31d1] Setting instance to ERROR state.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance a33269c1-3b79-46bd-92f0-ccd22bbd31d1.
2026-07-21 07:53:36.787 10 WARNING neutronclient.v2_0.client [None req-82ac1f63-9078-4c9f-a8b9-13839e490be8 906966eaa3cc44aeaa7bf0bfda124d76 a404d77fe3e74c818ba5f0694ec75f16 - - 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 a33269c1-3b79-46bd-92f0-ccd22bbd31d1.
2026-07-21 07:53:37.874 10 WARNING neutronclient.v2_0.client [None req-82ac1f63-9078-4c9f-a8b9-13839e490be8 906966eaa3cc44aeaa7bf0bfda124d76 a404d77fe3e74c818ba5f0694ec75f16 - - 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 a33269c1-3b79-46bd-92f0-ccd22bbd31d1.
2026-07-21 07:54:00.364 10 ERROR nova.scheduler.utils [None req-03d9bb4a-09c0-412b-ab21-f7eedf412211 fcc5189ce99b4d7ba7eb03caf99d925f b6e67f840bf944519c550bebabfd63d0 - - default default] [instance: 8b8fc7a2-5eae-4fe3-b8e9-685bd05d48d2] 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 8b8fc7a2-5eae-4fe3-b8e9-685bd05d48d2 was re-scheduled: Failure running os_vif plugin plug method: No VIF plugin was found with the name ovs\n']
2026-07-21 07:54:00.366 10 WARNING nova.scheduler.utils [None req-03d9bb4a-09c0-412b-ab21-f7eedf412211 fcc5189ce99b4d7ba7eb03caf99d925f b6e67f840bf944519c550bebabfd63d0 - - default default] Failed to compute_task_build_instances: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 8b8fc7a2-5eae-4fe3-b8e9-685bd05d48d2.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 8b8fc7a2-5eae-4fe3-b8e9-685bd05d48d2.
2026-07-21 07:54:00.366 10 WARNING nova.scheduler.utils [None req-03d9bb4a-09c0-412b-ab21-f7eedf412211 fcc5189ce99b4d7ba7eb03caf99d925f b6e67f840bf944519c550bebabfd63d0 - - default default] [instance: 8b8fc7a2-5eae-4fe3-b8e9-685bd05d48d2] Setting instance to ERROR state.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 8b8fc7a2-5eae-4fe3-b8e9-685bd05d48d2.
2026-07-21 07:54:00.436 10 WARNING neutronclient.v2_0.client [None req-03d9bb4a-09c0-412b-ab21-f7eedf412211 fcc5189ce99b4d7ba7eb03caf99d925f b6e67f840bf944519c550bebabfd63d0 - - 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 8b8fc7a2-5eae-4fe3-b8e9-685bd05d48d2.
2026-07-21 07:54:00.464 10 WARNING neutronclient.v2_0.client [None req-03d9bb4a-09c0-412b-ab21-f7eedf412211 fcc5189ce99b4d7ba7eb03caf99d925f b6e67f840bf944519c550bebabfd63d0 - - 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 8b8fc7a2-5eae-4fe3-b8e9-685bd05d48d2.
2026-07-21 07:54:06.872 10 ERROR nova.scheduler.utils [None req-d24eddc8-ef96-42d6-8fb2-4c115dc4d5e8 0598e21a6c4b4b69b9fef74b7c7eb02e 1d92a727dce848ab977bbe147238f86b - - default default] [instance: 4e6ed413-eaec-4ab5-a3cc-f037ec376a24] 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 4e6ed413-eaec-4ab5-a3cc-f037ec376a24 was re-scheduled: Failure running os_vif plugin plug method: No VIF plugin was found with the name ovs\n']
2026-07-21 07:54:06.873 10 WARNING nova.scheduler.utils [None req-d24eddc8-ef96-42d6-8fb2-4c115dc4d5e8 0598e21a6c4b4b69b9fef74b7c7eb02e 1d92a727dce848ab977bbe147238f86b - - default default] Failed to compute_task_build_instances: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 4e6ed413-eaec-4ab5-a3cc-f037ec376a24.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 4e6ed413-eaec-4ab5-a3cc-f037ec376a24.
2026-07-21 07:54:06.873 10 WARNING nova.scheduler.utils [None req-d24eddc8-ef96-42d6-8fb2-4c115dc4d5e8 0598e21a6c4b4b69b9fef74b7c7eb02e 1d92a727dce848ab977bbe147238f86b - - default default] [instance: 4e6ed413-eaec-4ab5-a3cc-f037ec376a24] Setting instance to ERROR state.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 4e6ed413-eaec-4ab5-a3cc-f037ec376a24.
2026-07-21 07:54:06.924 10 WARNING neutronclient.v2_0.client [None req-d24eddc8-ef96-42d6-8fb2-4c115dc4d5e8 0598e21a6c4b4b69b9fef74b7c7eb02e 1d92a727dce848ab977bbe147238f86b - - 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 4e6ed413-eaec-4ab5-a3cc-f037ec376a24.
2026-07-21 07:54:06.952 10 WARNING neutronclient.v2_0.client [None req-d24eddc8-ef96-42d6-8fb2-4c115dc4d5e8 0598e21a6c4b4b69b9fef74b7c7eb02e 1d92a727dce848ab977bbe147238f86b - - 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 4e6ed413-eaec-4ab5-a3cc-f037ec376a24.
2026-07-21 07:55:18.110 10 ERROR nova.scheduler.utils [None req-81240871-28db-4a31-9f86-5e2a6a2e00d2 2fc8879a96c1472fb5f51a65a0eda38a 123bc9e3ff6745ec95d92d66e2e4ad1c - - default default] [instance: e0f9655b-8516-4943-b8f9-9b1fae7bf1ea] 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 e0f9655b-8516-4943-b8f9-9b1fae7bf1ea was re-scheduled: Failure running os_vif plugin plug method: No VIF plugin was found with the name ovs\n']
2026-07-21 07:55:18.110 10 WARNING nova.scheduler.utils [None req-81240871-28db-4a31-9f86-5e2a6a2e00d2 2fc8879a96c1472fb5f51a65a0eda38a 123bc9e3ff6745ec95d92d66e2e4ad1c - - default default] Failed to compute_task_build_instances: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance e0f9655b-8516-4943-b8f9-9b1fae7bf1ea.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance e0f9655b-8516-4943-b8f9-9b1fae7bf1ea.
2026-07-21 07:55:18.112 10 WARNING nova.scheduler.utils [None req-81240871-28db-4a31-9f86-5e2a6a2e00d2 2fc8879a96c1472fb5f51a65a0eda38a 123bc9e3ff6745ec95d92d66e2e4ad1c - - default default] [instance: e0f9655b-8516-4943-b8f9-9b1fae7bf1ea] Setting instance to ERROR state.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance e0f9655b-8516-4943-b8f9-9b1fae7bf1ea.
2026-07-21 07:55:18.164 10 WARNING neutronclient.v2_0.client [None req-81240871-28db-4a31-9f86-5e2a6a2e00d2 2fc8879a96c1472fb5f51a65a0eda38a 123bc9e3ff6745ec95d92d66e2e4ad1c - - 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 e0f9655b-8516-4943-b8f9-9b1fae7bf1ea.
2026-07-21 07:55:18.192 10 WARNING neutronclient.v2_0.client [None req-81240871-28db-4a31-9f86-5e2a6a2e00d2 2fc8879a96c1472fb5f51a65a0eda38a 123bc9e3ff6745ec95d92d66e2e4ad1c - - 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 e0f9655b-8516-4943-b8f9-9b1fae7bf1ea.
2026-07-21 07:56:07.374 12 ERROR nova.scheduler.utils [None req-a6d58bfc-7bd8-48db-b0ff-1d7fb742ac5e 93e844cc4e634521a30f74ab790c39e2 b76a719cb42d4e1ab2c85bd70240623e - - default default] [instance: 633b4549-0d5d-4907-89b7-5890dbc78f56] 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 633b4549-0d5d-4907-89b7-5890dbc78f56 was re-scheduled: Failure running os_vif plugin plug method: No VIF plugin was found with the name ovs\n']
2026-07-21 07:56:07.375 12 WARNING nova.scheduler.utils [None req-a6d58bfc-7bd8-48db-b0ff-1d7fb742ac5e 93e844cc4e634521a30f74ab790c39e2 b76a719cb42d4e1ab2c85bd70240623e - - default default] Failed to compute_task_build_instances: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 633b4549-0d5d-4907-89b7-5890dbc78f56.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 633b4549-0d5d-4907-89b7-5890dbc78f56.
2026-07-21 07:56:07.375 12 WARNING nova.scheduler.utils [None req-a6d58bfc-7bd8-48db-b0ff-1d7fb742ac5e 93e844cc4e634521a30f74ab790c39e2 b76a719cb42d4e1ab2c85bd70240623e - - default default] [instance: 633b4549-0d5d-4907-89b7-5890dbc78f56] Setting instance to ERROR state.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 633b4549-0d5d-4907-89b7-5890dbc78f56.
2026-07-21 07:56:07.423 12 WARNING neutronclient.v2_0.client [None req-a6d58bfc-7bd8-48db-b0ff-1d7fb742ac5e 93e844cc4e634521a30f74ab790c39e2 b76a719cb42d4e1ab2c85bd70240623e - - 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 633b4549-0d5d-4907-89b7-5890dbc78f56.
2026-07-21 07:56:07.465 12 WARNING neutronclient.v2_0.client [None req-a6d58bfc-7bd8-48db-b0ff-1d7fb742ac5e 93e844cc4e634521a30f74ab790c39e2 b76a719cb42d4e1ab2c85bd70240623e - - 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 633b4549-0d5d-4907-89b7-5890dbc78f56.
2026-07-21 07:56:47.925 12 ERROR nova.scheduler.utils [None req-3560dfe5-f2cf-46f8-a1da-b9f1144ecacc 372f35e5d4974bdfba00522fc0d7f22e 1e0a40ca54ca4c24945149765ff02fb2 - - default default] [instance: 9d48c3a3-0b39-484c-a798-3dcfb25d8ead] 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 9d48c3a3-0b39-484c-a798-3dcfb25d8ead was re-scheduled: Failure running os_vif plugin plug method: No VIF plugin was found with the name ovs\n']
2026-07-21 07:56:47.926 12 WARNING nova.scheduler.utils [None req-3560dfe5-f2cf-46f8-a1da-b9f1144ecacc 372f35e5d4974bdfba00522fc0d7f22e 1e0a40ca54ca4c24945149765ff02fb2 - - default default] Failed to compute_task_build_instances: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 9d48c3a3-0b39-484c-a798-3dcfb25d8ead.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 9d48c3a3-0b39-484c-a798-3dcfb25d8ead.
2026-07-21 07:56:47.927 12 WARNING nova.scheduler.utils [None req-3560dfe5-f2cf-46f8-a1da-b9f1144ecacc 372f35e5d4974bdfba00522fc0d7f22e 1e0a40ca54ca4c24945149765ff02fb2 - - default default] [instance: 9d48c3a3-0b39-484c-a798-3dcfb25d8ead] Setting instance to ERROR state.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 9d48c3a3-0b39-484c-a798-3dcfb25d8ead.
2026-07-21 07:56:47.977 12 WARNING neutronclient.v2_0.client [None req-3560dfe5-f2cf-46f8-a1da-b9f1144ecacc 372f35e5d4974bdfba00522fc0d7f22e 1e0a40ca54ca4c24945149765ff02fb2 - - 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 9d48c3a3-0b39-484c-a798-3dcfb25d8ead.
2026-07-21 07:56:48.006 12 WARNING neutronclient.v2_0.client [None req-3560dfe5-f2cf-46f8-a1da-b9f1144ecacc 372f35e5d4974bdfba00522fc0d7f22e 1e0a40ca54ca4c24945149765ff02fb2 - - 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 9d48c3a3-0b39-484c-a798-3dcfb25d8ead.
2026-07-21 07:58:19.508 12 ERROR nova.scheduler.utils [None req-bd197b64-039a-4427-8a7d-1cc328ea2e3b 36adcf4c7f9245d38de089879c96bed8 afc0947cc30b45a78f06df2d3ee82d36 - - default default] [instance: f2f1e125-b053-43cb-b138-595e32791ffe] 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 f2f1e125-b053-43cb-b138-595e32791ffe was re-scheduled: Failure running os_vif plugin plug method: No VIF plugin was found with the name ovs\n']
2026-07-21 07:58:19.509 12 WARNING nova.scheduler.utils [None req-bd197b64-039a-4427-8a7d-1cc328ea2e3b 36adcf4c7f9245d38de089879c96bed8 afc0947cc30b45a78f06df2d3ee82d36 - - default default] Failed to compute_task_build_instances: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance f2f1e125-b053-43cb-b138-595e32791ffe.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance f2f1e125-b053-43cb-b138-595e32791ffe.
2026-07-21 07:58:19.510 12 WARNING nova.scheduler.utils [None req-bd197b64-039a-4427-8a7d-1cc328ea2e3b 36adcf4c7f9245d38de089879c96bed8 afc0947cc30b45a78f06df2d3ee82d36 - - default default] [instance: f2f1e125-b053-43cb-b138-595e32791ffe] Setting instance to ERROR state.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance f2f1e125-b053-43cb-b138-595e32791ffe.
2026-07-21 07:58:19.552 12 WARNING neutronclient.v2_0.client [None req-bd197b64-039a-4427-8a7d-1cc328ea2e3b 36adcf4c7f9245d38de089879c96bed8 afc0947cc30b45a78f06df2d3ee82d36 - - 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 f2f1e125-b053-43cb-b138-595e32791ffe.
2026-07-21 07:58:19.583 12 WARNING neutronclient.v2_0.client [None req-bd197b64-039a-4427-8a7d-1cc328ea2e3b 36adcf4c7f9245d38de089879c96bed8 afc0947cc30b45a78f06df2d3ee82d36 - - 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 f2f1e125-b053-43cb-b138-595e32791ffe.