+ exec cinder-backup --config-file /etc/cinder/cinder.conf simplejson unavailable, fall-back to standard python json 2026-04-29 15:42:51.605 1 INFO cinder.cmd.backup [-] Backup running in single process mode. 2026-04-29 15:42:51.874 1 INFO cinder.rpc [None req-29774ac7-1d80-45ed-867e-17cf548fd806 - - - - - -] Automatically selected cinder-backup objects version 1.39 as minimum service version. 2026-04-29 15:42:51.876 1 INFO cinder.rpc [None req-29774ac7-1d80-45ed-867e-17cf548fd806 - - - - - -] Automatically selected cinder-backup RPC version 2.4 as minimum service version. 2026-04-29 15:42:51.878 1 INFO cinder.rpc [None req-29774ac7-1d80-45ed-867e-17cf548fd806 - - - - - -] Automatically selected cinder-volume objects version 1.39 as minimum service version. 2026-04-29 15:42:51.880 1 INFO cinder.rpc [None req-29774ac7-1d80-45ed-867e-17cf548fd806 - - - - - -] Automatically selected cinder-volume RPC version 3.20 as minimum service version. 2026-04-29 15:42:51.883 1 INFO cinder.rpc [None req-29774ac7-1d80-45ed-867e-17cf548fd806 - - - - - -] Automatically selected cinder-scheduler objects version 1.39 as minimum service version. 2026-04-29 15:42:51.885 1 INFO cinder.rpc [None req-29774ac7-1d80-45ed-867e-17cf548fd806 - - - - - -] Automatically selected cinder-scheduler RPC version 3.12 as minimum service version. 2026-04-29 15:42:51.942 1 WARNING oslo_config.cfg [None req-29774ac7-1d80-45ed-867e-17cf548fd806 - - - - - -] 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. 2026-04-29 15:42:51.943 1 WARNING oslo_config.cfg [None req-29774ac7-1d80-45ed-867e-17cf548fd806 - - - - - -] Deprecated: Option "auth_uri" from group "keystone_authtoken" is deprecated. Use option "www_authenticate_uri" from group "keystone_authtoken". 2026-04-29 15:42:51.951 1 INFO cinder.service [-] Starting cinder-backup node (version 27.1.0) 2026-04-29 15:42:51.975 1 INFO cinder.backup.manager [None req-c55d5621-3597-4f7c-a368-d2621678b17d - - - - - -] Cleaning up incomplete backup operations. 2026-04-29 15:42:52.032 1 INFO cinder.keymgr.migration [None req-ca901956-1d3c-42ca-981c-a6c3001d3447 - - - - - -] Not migrating encryption keys because the ConfKeyManager's fixed_key is not in use.