+ exec nova-conductor --config-file /etc/nova/nova.conf 2026-09-12 01:44:27.040 1 INFO nova.utils [None req-25911d18-ffc3-46b4-888f-9e3885274876 - - - - - -] The cell worker thread pool MainProcess.cell_worker is initialized 2026-09-12 01:44:27.189 1 INFO nova.utils [None req-25911d18-ffc3-46b4-888f-9e3885274876 - - - - - -] The cell worker thread pool MainProcess.cell_worker is shutting down 2026-09-12 01:44:28.189 1 INFO nova.utils [None req-25911d18-ffc3-46b4-888f-9e3885274876 - - - - - -] The cell worker thread pool MainProcess.cell_worker is closed 2026-09-12 01:44:28.191 1 WARNING oslo_service.backend._threading.service [None req-25911d18-ffc3-46b4-888f-9e3885274876 - - - - - -] Service Service is not picklable with spawn; falling back to fork. Please make the service spawn-safe to avoid this fallback. 2026-09-12 01:44:28.203 1 WARNING oslo_config.cfg [None req-25911d18-ffc3-46b4-888f-9e3885274876 - - - - - -] Deprecated: Option "api_servers" from group "glance" is deprecated for removal ( Support for image service configuration via standard keystoneauth1 Adapter options was added in the 17.0.0 Queens release. The api_servers option was retained temporarily to allow consumers time to cut over to a real load balancing solution. ). Its value may be silently ignored in the future. 2026-09-12 01:44:28.254 11 INFO nova.service [-] Starting conductor node (version 33.1.0) 2026-09-12 01:44:28.276 13 INFO nova.service [-] Starting conductor node (version 33.1.0) 2026-09-12 02:24:57.373 13 INFO nova.utils [None req-9a9926bd-aa17-43dd-b775-a2cefa6b842e 6212942488e1465aab3ebf36003b70d9 e7debaa22743482881e9196183f2c515 - - default default] The cell worker thread pool ForkProcess-2.cell_worker is initialized 2026-09-12 02:24:57.545 13 INFO nova.compute.rpcapi [None req-7e505d8f-69cb-47d6-95cc-45e2834e2d65 - - - - - -] Automatically selected compute RPC version 6.5 from minimum service version 72 2026-09-12 02:24:58.835 11 INFO nova.utils [None req-ae7149f3-e3aa-4cbc-ac5b-0b6a1c77603c ed7779d30eea44778a67c3617f1a7089 49522699c18340709da0c5d62ded6a47 - - default default] The cell worker thread pool ForkProcess-1.cell_worker is initialized 2026-09-12 02:24:59.054 11 INFO nova.compute.rpcapi [None req-9d518f2f-694a-40a6-8a78-bc91eeb378f5 - - - - - -] Automatically selected compute RPC version 6.5 from minimum service version 72 2026-09-12 02:25:15.793 11 ERROR nova.scheduler.utils [None req-9a9926bd-aa17-43dd-b775-a2cefa6b842e 6212942488e1465aab3ebf36003b70d9 e7debaa22743482881e9196183f2c515 - - default default] [instance: 100bc046-ed11-4404-a2dc-6a00c781c817] 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 100bc046-ed11-4404-a2dc-6a00c781c817 was re-scheduled: Failure running os_vif plugin plug method: No VIF plugin was found with the name ovs\n'] 2026-09-12 02:25:15.794 11 WARNING nova.scheduler.utils [None req-9a9926bd-aa17-43dd-b775-a2cefa6b842e 6212942488e1465aab3ebf36003b70d9 e7debaa22743482881e9196183f2c515 - - default default] Failed to compute_task_build_instances: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 100bc046-ed11-4404-a2dc-6a00c781c817.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 100bc046-ed11-4404-a2dc-6a00c781c817. 2026-09-12 02:25:15.795 11 WARNING nova.scheduler.utils [None req-9a9926bd-aa17-43dd-b775-a2cefa6b842e 6212942488e1465aab3ebf36003b70d9 e7debaa22743482881e9196183f2c515 - - default default] [instance: 100bc046-ed11-4404-a2dc-6a00c781c817] Setting instance to ERROR state.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 100bc046-ed11-4404-a2dc-6a00c781c817. 2026-09-12 02:25:15.927 11 WARNING neutronclient.v2_0.client [None req-9a9926bd-aa17-43dd-b775-a2cefa6b842e 6212942488e1465aab3ebf36003b70d9 e7debaa22743482881e9196183f2c515 - - 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 100bc046-ed11-4404-a2dc-6a00c781c817. 2026-09-12 02:25:16.318 11 WARNING neutronclient.v2_0.client [None req-9a9926bd-aa17-43dd-b775-a2cefa6b842e 6212942488e1465aab3ebf36003b70d9 e7debaa22743482881e9196183f2c515 - - 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 100bc046-ed11-4404-a2dc-6a00c781c817. 2026-09-12 02:25:17.487 11 ERROR nova.scheduler.utils [None req-ae7149f3-e3aa-4cbc-ac5b-0b6a1c77603c ed7779d30eea44778a67c3617f1a7089 49522699c18340709da0c5d62ded6a47 - - default default] [instance: 5910b860-bc6a-45cc-9434-381ec8f07210] 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 5910b860-bc6a-45cc-9434-381ec8f07210 was re-scheduled: Failure running os_vif plugin plug method: No VIF plugin was found with the name ovs\n'] 2026-09-12 02:25:17.488 11 WARNING nova.scheduler.utils [None req-ae7149f3-e3aa-4cbc-ac5b-0b6a1c77603c ed7779d30eea44778a67c3617f1a7089 49522699c18340709da0c5d62ded6a47 - - default default] Failed to compute_task_build_instances: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 5910b860-bc6a-45cc-9434-381ec8f07210.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 5910b860-bc6a-45cc-9434-381ec8f07210. 2026-09-12 02:25:17.488 11 WARNING nova.scheduler.utils [None req-ae7149f3-e3aa-4cbc-ac5b-0b6a1c77603c ed7779d30eea44778a67c3617f1a7089 49522699c18340709da0c5d62ded6a47 - - default default] [instance: 5910b860-bc6a-45cc-9434-381ec8f07210] Setting instance to ERROR state.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 5910b860-bc6a-45cc-9434-381ec8f07210. 2026-09-12 02:25:17.543 11 WARNING neutronclient.v2_0.client [None req-ae7149f3-e3aa-4cbc-ac5b-0b6a1c77603c ed7779d30eea44778a67c3617f1a7089 49522699c18340709da0c5d62ded6a47 - - 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 5910b860-bc6a-45cc-9434-381ec8f07210. 2026-09-12 02:25:17.577 11 WARNING neutronclient.v2_0.client [None req-ae7149f3-e3aa-4cbc-ac5b-0b6a1c77603c ed7779d30eea44778a67c3617f1a7089 49522699c18340709da0c5d62ded6a47 - - 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 5910b860-bc6a-45cc-9434-381ec8f07210. 2026-09-12 02:25:22.444 11 ERROR nova.scheduler.utils [None req-f45b91fc-244b-4677-84bb-a9b96dcc1b15 0db871905bc34d5ab532b1bba5c35226 5b65bdb8089c42fb972080f2df355c50 - - default default] [instance: d82da668-b512-467e-8351-1054345985c4] 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 d82da668-b512-467e-8351-1054345985c4 was re-scheduled: Failure running os_vif plugin plug method: No VIF plugin was found with the name ovs\n'] 2026-09-12 02:25:22.444 11 WARNING nova.scheduler.utils [None req-f45b91fc-244b-4677-84bb-a9b96dcc1b15 0db871905bc34d5ab532b1bba5c35226 5b65bdb8089c42fb972080f2df355c50 - - default default] Failed to compute_task_build_instances: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance d82da668-b512-467e-8351-1054345985c4.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance d82da668-b512-467e-8351-1054345985c4. 2026-09-12 02:25:22.445 11 WARNING nova.scheduler.utils [None req-f45b91fc-244b-4677-84bb-a9b96dcc1b15 0db871905bc34d5ab532b1bba5c35226 5b65bdb8089c42fb972080f2df355c50 - - default default] [instance: d82da668-b512-467e-8351-1054345985c4] Setting instance to ERROR state.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance d82da668-b512-467e-8351-1054345985c4. 2026-09-12 02:25:22.482 11 WARNING neutronclient.v2_0.client [None req-f45b91fc-244b-4677-84bb-a9b96dcc1b15 0db871905bc34d5ab532b1bba5c35226 5b65bdb8089c42fb972080f2df355c50 - - 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 d82da668-b512-467e-8351-1054345985c4. 2026-09-12 02:25:22.509 11 WARNING neutronclient.v2_0.client [None req-f45b91fc-244b-4677-84bb-a9b96dcc1b15 0db871905bc34d5ab532b1bba5c35226 5b65bdb8089c42fb972080f2df355c50 - - 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 d82da668-b512-467e-8351-1054345985c4. 2026-09-12 02:25:30.054 13 ERROR nova.scheduler.utils [None req-7d647dc4-52d1-492f-a97f-496af294064b 1c1c250c6ea547e897eff1a13762b447 56ae5532cc3e471bb6a47f31f6106c04 - - default default] [instance: 2011416f-3226-4b42-b574-0549f92daa40] 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 2011416f-3226-4b42-b574-0549f92daa40 was re-scheduled: Failure running os_vif plugin plug method: No VIF plugin was found with the name ovs\n'] 2026-09-12 02:25:30.054 13 WARNING nova.scheduler.utils [None req-7d647dc4-52d1-492f-a97f-496af294064b 1c1c250c6ea547e897eff1a13762b447 56ae5532cc3e471bb6a47f31f6106c04 - - default default] Failed to compute_task_build_instances: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 2011416f-3226-4b42-b574-0549f92daa40.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 2011416f-3226-4b42-b574-0549f92daa40. 2026-09-12 02:25:30.055 13 WARNING nova.scheduler.utils [None req-7d647dc4-52d1-492f-a97f-496af294064b 1c1c250c6ea547e897eff1a13762b447 56ae5532cc3e471bb6a47f31f6106c04 - - default default] [instance: 2011416f-3226-4b42-b574-0549f92daa40] Setting instance to ERROR state.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 2011416f-3226-4b42-b574-0549f92daa40. 2026-09-12 02:25:30.145 13 WARNING neutronclient.v2_0.client [None req-7d647dc4-52d1-492f-a97f-496af294064b 1c1c250c6ea547e897eff1a13762b447 56ae5532cc3e471bb6a47f31f6106c04 - - 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 2011416f-3226-4b42-b574-0549f92daa40. 2026-09-12 02:25:30.793 13 WARNING neutronclient.v2_0.client [None req-7d647dc4-52d1-492f-a97f-496af294064b 1c1c250c6ea547e897eff1a13762b447 56ae5532cc3e471bb6a47f31f6106c04 - - 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 2011416f-3226-4b42-b574-0549f92daa40. 2026-09-12 02:25:44.866 11 ERROR nova.scheduler.utils [None req-e4eec331-605c-459f-82ae-74cb132db1e0 72cbad16688743009e2641d4b4e72365 9de3418dd9cb48a3b05cf538bc8be7b9 - - default default] [instance: ce22526c-e614-4c15-8e5e-3cb843a8e9dd] 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 ce22526c-e614-4c15-8e5e-3cb843a8e9dd was re-scheduled: Failure running os_vif plugin plug method: No VIF plugin was found with the name ovs\n'] 2026-09-12 02:25:44.866 11 WARNING nova.scheduler.utils [None req-e4eec331-605c-459f-82ae-74cb132db1e0 72cbad16688743009e2641d4b4e72365 9de3418dd9cb48a3b05cf538bc8be7b9 - - default default] Failed to compute_task_build_instances: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance ce22526c-e614-4c15-8e5e-3cb843a8e9dd.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance ce22526c-e614-4c15-8e5e-3cb843a8e9dd. 2026-09-12 02:25:44.867 11 WARNING nova.scheduler.utils [None req-e4eec331-605c-459f-82ae-74cb132db1e0 72cbad16688743009e2641d4b4e72365 9de3418dd9cb48a3b05cf538bc8be7b9 - - default default] [instance: ce22526c-e614-4c15-8e5e-3cb843a8e9dd] Setting instance to ERROR state.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance ce22526c-e614-4c15-8e5e-3cb843a8e9dd. 2026-09-12 02:25:44.916 11 WARNING neutronclient.v2_0.client [None req-e4eec331-605c-459f-82ae-74cb132db1e0 72cbad16688743009e2641d4b4e72365 9de3418dd9cb48a3b05cf538bc8be7b9 - - 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 ce22526c-e614-4c15-8e5e-3cb843a8e9dd. 2026-09-12 02:25:44.945 11 WARNING neutronclient.v2_0.client [None req-e4eec331-605c-459f-82ae-74cb132db1e0 72cbad16688743009e2641d4b4e72365 9de3418dd9cb48a3b05cf538bc8be7b9 - - 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 ce22526c-e614-4c15-8e5e-3cb843a8e9dd. 2026-09-12 02:25:50.773 13 ERROR nova.scheduler.utils [None req-73e241f4-bd0c-4116-b6c8-2c2d3bc62ee4 b8f32d00aed44fc7beb911706e766fe5 d19a97edbc494a518e34d4acf1423c5b - - default default] [instance: 2574d5d1-32b3-4260-8e28-35a5e30d0b69] 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 2574d5d1-32b3-4260-8e28-35a5e30d0b69 was re-scheduled: Failure running os_vif plugin plug method: No VIF plugin was found with the name ovs\n'] 2026-09-12 02:25:50.774 13 WARNING nova.scheduler.utils [None req-73e241f4-bd0c-4116-b6c8-2c2d3bc62ee4 b8f32d00aed44fc7beb911706e766fe5 d19a97edbc494a518e34d4acf1423c5b - - default default] Failed to compute_task_build_instances: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 2574d5d1-32b3-4260-8e28-35a5e30d0b69.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 2574d5d1-32b3-4260-8e28-35a5e30d0b69. 2026-09-12 02:25:50.777 13 WARNING nova.scheduler.utils [None req-73e241f4-bd0c-4116-b6c8-2c2d3bc62ee4 b8f32d00aed44fc7beb911706e766fe5 d19a97edbc494a518e34d4acf1423c5b - - default default] [instance: 2574d5d1-32b3-4260-8e28-35a5e30d0b69] Setting instance to ERROR state.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 2574d5d1-32b3-4260-8e28-35a5e30d0b69. 2026-09-12 02:25:50.853 13 WARNING neutronclient.v2_0.client [None req-73e241f4-bd0c-4116-b6c8-2c2d3bc62ee4 b8f32d00aed44fc7beb911706e766fe5 d19a97edbc494a518e34d4acf1423c5b - - 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 2574d5d1-32b3-4260-8e28-35a5e30d0b69. 2026-09-12 02:25:50.878 13 WARNING neutronclient.v2_0.client [None req-73e241f4-bd0c-4116-b6c8-2c2d3bc62ee4 b8f32d00aed44fc7beb911706e766fe5 d19a97edbc494a518e34d4acf1423c5b - - 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 2574d5d1-32b3-4260-8e28-35a5e30d0b69. 2026-09-12 02:27:06.078 13 ERROR nova.scheduler.utils [None req-b1289f12-93b4-42dc-9e7f-6e7d40b1369e cc922fb3ff4347adb7699c9399b658a8 0332eef6cd0a4ccaa7a75bae19c038f6 - - default default] [instance: 9d9985a3-3fb1-4f46-8cb0-2ce3256ef4b9] 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 9d9985a3-3fb1-4f46-8cb0-2ce3256ef4b9 was re-scheduled: Failure running os_vif plugin plug method: No VIF plugin was found with the name ovs\n'] 2026-09-12 02:27:06.079 13 WARNING nova.scheduler.utils [None req-b1289f12-93b4-42dc-9e7f-6e7d40b1369e cc922fb3ff4347adb7699c9399b658a8 0332eef6cd0a4ccaa7a75bae19c038f6 - - default default] Failed to compute_task_build_instances: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 9d9985a3-3fb1-4f46-8cb0-2ce3256ef4b9.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 9d9985a3-3fb1-4f46-8cb0-2ce3256ef4b9. 2026-09-12 02:27:06.079 13 WARNING nova.scheduler.utils [None req-b1289f12-93b4-42dc-9e7f-6e7d40b1369e cc922fb3ff4347adb7699c9399b658a8 0332eef6cd0a4ccaa7a75bae19c038f6 - - default default] [instance: 9d9985a3-3fb1-4f46-8cb0-2ce3256ef4b9] Setting instance to ERROR state.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 9d9985a3-3fb1-4f46-8cb0-2ce3256ef4b9. 2026-09-12 02:27:06.163 13 WARNING neutronclient.v2_0.client [None req-b1289f12-93b4-42dc-9e7f-6e7d40b1369e cc922fb3ff4347adb7699c9399b658a8 0332eef6cd0a4ccaa7a75bae19c038f6 - - 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 9d9985a3-3fb1-4f46-8cb0-2ce3256ef4b9. 2026-09-12 02:27:06.201 13 WARNING neutronclient.v2_0.client [None req-b1289f12-93b4-42dc-9e7f-6e7d40b1369e cc922fb3ff4347adb7699c9399b658a8 0332eef6cd0a4ccaa7a75bae19c038f6 - - 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 9d9985a3-3fb1-4f46-8cb0-2ce3256ef4b9. 2026-09-12 02:27:40.481 13 ERROR nova.scheduler.utils [None req-607acd96-3da9-487b-a443-64a11ca8a2a8 f0a3f05357824433b6e8f6f9a5d895a9 121116c4a7194e56ae71fc6de7666366 - - default default] [instance: 36147c23-23d4-411b-9d21-c8051ce455b7] 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 36147c23-23d4-411b-9d21-c8051ce455b7 was re-scheduled: Failure running os_vif plugin plug method: No VIF plugin was found with the name ovs\n'] 2026-09-12 02:27:40.485 13 WARNING nova.scheduler.utils [None req-607acd96-3da9-487b-a443-64a11ca8a2a8 f0a3f05357824433b6e8f6f9a5d895a9 121116c4a7194e56ae71fc6de7666366 - - default default] Failed to compute_task_build_instances: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 36147c23-23d4-411b-9d21-c8051ce455b7.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 36147c23-23d4-411b-9d21-c8051ce455b7. 2026-09-12 02:27:40.486 13 WARNING nova.scheduler.utils [None req-607acd96-3da9-487b-a443-64a11ca8a2a8 f0a3f05357824433b6e8f6f9a5d895a9 121116c4a7194e56ae71fc6de7666366 - - default default] [instance: 36147c23-23d4-411b-9d21-c8051ce455b7] Setting instance to ERROR state.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 36147c23-23d4-411b-9d21-c8051ce455b7. 2026-09-12 02:27:40.568 13 WARNING neutronclient.v2_0.client [None req-607acd96-3da9-487b-a443-64a11ca8a2a8 f0a3f05357824433b6e8f6f9a5d895a9 121116c4a7194e56ae71fc6de7666366 - - 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 36147c23-23d4-411b-9d21-c8051ce455b7. 2026-09-12 02:27:40.604 13 WARNING neutronclient.v2_0.client [None req-607acd96-3da9-487b-a443-64a11ca8a2a8 f0a3f05357824433b6e8f6f9a5d895a9 121116c4a7194e56ae71fc6de7666366 - - 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 36147c23-23d4-411b-9d21-c8051ce455b7. 2026-09-12 02:27:42.583 13 ERROR nova.scheduler.utils [None req-b2b411f8-f681-46da-a900-3de6a7f16d25 98eee29d51a54c35b0fdc7a9df9b1df1 a09e605898e64ca1a0e9465049e30454 - - default default] [instance: fa40e21d-747c-40bc-a566-0eae91d6db08] 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 fa40e21d-747c-40bc-a566-0eae91d6db08 was re-scheduled: Failure running os_vif plugin plug method: No VIF plugin was found with the name ovs\n'] 2026-09-12 02:27:42.583 13 WARNING nova.scheduler.utils [None req-b2b411f8-f681-46da-a900-3de6a7f16d25 98eee29d51a54c35b0fdc7a9df9b1df1 a09e605898e64ca1a0e9465049e30454 - - default default] Failed to compute_task_build_instances: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance fa40e21d-747c-40bc-a566-0eae91d6db08.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance fa40e21d-747c-40bc-a566-0eae91d6db08. 2026-09-12 02:27:42.584 13 WARNING nova.scheduler.utils [None req-b2b411f8-f681-46da-a900-3de6a7f16d25 98eee29d51a54c35b0fdc7a9df9b1df1 a09e605898e64ca1a0e9465049e30454 - - default default] [instance: fa40e21d-747c-40bc-a566-0eae91d6db08] Setting instance to ERROR state.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance fa40e21d-747c-40bc-a566-0eae91d6db08. 2026-09-12 02:27:42.624 13 WARNING neutronclient.v2_0.client [None req-b2b411f8-f681-46da-a900-3de6a7f16d25 98eee29d51a54c35b0fdc7a9df9b1df1 a09e605898e64ca1a0e9465049e30454 - - 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 fa40e21d-747c-40bc-a566-0eae91d6db08. 2026-09-12 02:27:42.726 13 WARNING neutronclient.v2_0.client [None req-b2b411f8-f681-46da-a900-3de6a7f16d25 98eee29d51a54c35b0fdc7a9df9b1df1 a09e605898e64ca1a0e9465049e30454 - - 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 fa40e21d-747c-40bc-a566-0eae91d6db08. 2026-09-12 02:28:44.502 11 ERROR nova.scheduler.utils [None req-6a4748a8-3ce3-468f-9d26-eff1b915911d f15d166ef5c5460eb75e9b56cde0eea1 384cde89124a426f82e54258f69e29f1 - - default default] [instance: 9b8b8a5b-79ed-4b2f-b06c-40610b5b3399] 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 9b8b8a5b-79ed-4b2f-b06c-40610b5b3399 was re-scheduled: Failure running os_vif plugin plug method: No VIF plugin was found with the name ovs\n'] 2026-09-12 02:28:44.504 11 WARNING nova.scheduler.utils [None req-6a4748a8-3ce3-468f-9d26-eff1b915911d f15d166ef5c5460eb75e9b56cde0eea1 384cde89124a426f82e54258f69e29f1 - - default default] Failed to compute_task_build_instances: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 9b8b8a5b-79ed-4b2f-b06c-40610b5b3399.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 9b8b8a5b-79ed-4b2f-b06c-40610b5b3399. 2026-09-12 02:28:44.504 11 WARNING nova.scheduler.utils [None req-6a4748a8-3ce3-468f-9d26-eff1b915911d f15d166ef5c5460eb75e9b56cde0eea1 384cde89124a426f82e54258f69e29f1 - - default default] [instance: 9b8b8a5b-79ed-4b2f-b06c-40610b5b3399] Setting instance to ERROR state.: nova.exception.MaxRetriesExceeded: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 9b8b8a5b-79ed-4b2f-b06c-40610b5b3399. 2026-09-12 02:28:44.570 11 WARNING neutronclient.v2_0.client [None req-6a4748a8-3ce3-468f-9d26-eff1b915911d f15d166ef5c5460eb75e9b56cde0eea1 384cde89124a426f82e54258f69e29f1 - - 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 9b8b8a5b-79ed-4b2f-b06c-40610b5b3399. 2026-09-12 02:28:44.607 11 WARNING neutronclient.v2_0.client [None req-6a4748a8-3ce3-468f-9d26-eff1b915911d f15d166ef5c5460eb75e9b56cde0eea1 384cde89124a426f82e54258f69e29f1 - - 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 9b8b8a5b-79ed-4b2f-b06c-40610b5b3399.