+ exec cinder-backup --config-file /etc/cinder/cinder.conf simplejson unavailable, fall-back to standard python json 2026-04-28 22:51:22.279 1 INFO cinder.cmd.backup [-] Backup running in single process mode. 2026-04-28 22:51:22.560 1 INFO cinder.rpc [None req-a3bd0488-acf0-432f-a314-e2792877adfa - - - - - -] Automatically selected cinder-backup objects version 1.39 as minimum service version. 2026-04-28 22:51:22.563 1 INFO cinder.rpc [None req-a3bd0488-acf0-432f-a314-e2792877adfa - - - - - -] Automatically selected cinder-backup RPC version 2.4 as minimum service version. 2026-04-28 22:51:22.567 1 INFO cinder.rpc [None req-a3bd0488-acf0-432f-a314-e2792877adfa - - - - - -] Automatically selected cinder-volume objects version 1.39 as minimum service version. 2026-04-28 22:51:22.570 1 INFO cinder.rpc [None req-a3bd0488-acf0-432f-a314-e2792877adfa - - - - - -] Automatically selected cinder-volume RPC version 3.20 as minimum service version. 2026-04-28 22:51:22.573 1 INFO cinder.rpc [None req-a3bd0488-acf0-432f-a314-e2792877adfa - - - - - -] Automatically selected cinder-scheduler objects version 1.39 as minimum service version. 2026-04-28 22:51:22.576 1 INFO cinder.rpc [None req-a3bd0488-acf0-432f-a314-e2792877adfa - - - - - -] Automatically selected cinder-scheduler RPC version 3.12 as minimum service version. 2026-04-28 22:51:22.641 1 WARNING oslo_config.cfg [None req-a3bd0488-acf0-432f-a314-e2792877adfa - - - - - -] Deprecated: Option "auth_uri" from group "keystone_authtoken" is deprecated for removal (The auth_uri option is deprecated in favor of www_authenticate_uri and will be removed in the S release.). Its value may be silently ignored in the future. 2026-04-28 22:51:22.642 1 WARNING oslo_config.cfg [None req-a3bd0488-acf0-432f-a314-e2792877adfa - - - - - -] Deprecated: Option "auth_uri" from group "keystone_authtoken" is deprecated. Use option "www_authenticate_uri" from group "keystone_authtoken". 2026-04-28 22:51:22.654 1 INFO cinder.service [-] Starting cinder-backup node (version 27.0.1) 2026-04-28 22:51:22.677 1 INFO cinder.backup.manager [None req-ccf1e115-6aec-47db-92c4-5434fa53f075 - - - - - -] Cleaning up incomplete backup operations. 2026-04-28 22:51:22.753 1 INFO cinder.keymgr.migration [None req-ffcba82c-8fbd-48d7-b9d5-aa26e068158a - - - - - -] Not migrating encryption keys because the ConfKeyManager's fixed_key is not in use.