+ exec cinder-backup --config-file /etc/cinder/cinder.conf
simplejson unavailable, fall-back to standard python json
2026-08-22 11:03:29.254 1 INFO cinder.cmd.backup [-] Backup running in single process mode.
2026-08-22 11:03:29.488 1 INFO cinder.rpc [None req-51af2d49-a96e-4073-a1a7-4bf022d300bb - - - - - -] Automatically selected cinder-backup objects version 1.39 as minimum service version.
2026-08-22 11:03:29.492 1 INFO cinder.rpc [None req-51af2d49-a96e-4073-a1a7-4bf022d300bb - - - - - -] Automatically selected cinder-backup RPC version 2.3 as minimum service version.
2026-08-22 11:03:29.495 1 INFO cinder.rpc [None req-51af2d49-a96e-4073-a1a7-4bf022d300bb - - - - - -] Automatically selected cinder-volume objects version 1.39 as minimum service version.
2026-08-22 11:03:29.498 1 INFO cinder.rpc [None req-51af2d49-a96e-4073-a1a7-4bf022d300bb - - - - - -] Automatically selected cinder-volume RPC version 3.18 as minimum service version.
2026-08-22 11:03:29.501 1 INFO cinder.rpc [None req-51af2d49-a96e-4073-a1a7-4bf022d300bb - - - - - -] Automatically selected cinder-scheduler objects version 1.39 as minimum service version.
2026-08-22 11:03:29.504 1 INFO cinder.rpc [None req-51af2d49-a96e-4073-a1a7-4bf022d300bb - - - - - -] Automatically selected cinder-scheduler RPC version 3.12 as minimum service version.
2026-08-22 11:03:29.557 1 WARNING oslo_config.cfg [None req-51af2d49-a96e-4073-a1a7-4bf022d300bb - - - - - -] 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.
2026-08-22 11:03:29.558 1 WARNING oslo_config.cfg [None req-51af2d49-a96e-4073-a1a7-4bf022d300bb - - - - - -] Deprecated: Option "auth_uri" from group "keystone_authtoken" is deprecated. Use option "www_authenticate_uri" from group "keystone_authtoken".
2026-08-22 11:03:29.568 1 INFO cinder.service [-] Starting cinder-backup node (version 21.3.9)
2026-08-22 11:03:29.586 1 INFO cinder.backup.manager [None req-82c0b482-6cd5-4da4-82b8-cb87ab862baf - - - - - -] Cleaning up incomplete backup operations.
2026-08-22 11:03:29.745 1 INFO cinder.keymgr.migration [None req-09599811-e727-4b2f-9a12-904b447e17ec - - - - - -] Not migrating encryption keys because the ConfKeyManager's fixed_key is not in use.