+ exec cinder-backup --config-file /etc/cinder/cinder.conf simplejson unavailable, fall-back to standard python json 2026-04-12 21:13:01.009 1 INFO cinder.cmd.backup [-] Backup running in single process mode. 2026-04-12 21:13:01.301 1 INFO cinder.rpc [None req-82de1947-59be-4975-b6cf-a92fa7ec62cb - - - - - -] Automatically selected cinder-backup objects version 1.39 as minimum service version. 2026-04-12 21:13:01.304 1 INFO cinder.rpc [None req-82de1947-59be-4975-b6cf-a92fa7ec62cb - - - - - -] Automatically selected cinder-backup RPC version 2.4 as minimum service version. 2026-04-12 21:13:01.306 1 INFO cinder.rpc [None req-82de1947-59be-4975-b6cf-a92fa7ec62cb - - - - - -] Automatically selected cinder-volume objects version 1.39 as minimum service version. 2026-04-12 21:13:01.308 1 INFO cinder.rpc [None req-82de1947-59be-4975-b6cf-a92fa7ec62cb - - - - - -] Automatically selected cinder-volume RPC version 3.20 as minimum service version. 2026-04-12 21:13:01.310 1 INFO cinder.rpc [None req-82de1947-59be-4975-b6cf-a92fa7ec62cb - - - - - -] Automatically selected cinder-scheduler objects version 1.39 as minimum service version. 2026-04-12 21:13:01.312 1 INFO cinder.rpc [None req-82de1947-59be-4975-b6cf-a92fa7ec62cb - - - - - -] Automatically selected cinder-scheduler RPC version 3.12 as minimum service version. 2026-04-12 21:13:01.377 1 WARNING oslo_config.cfg [None req-82de1947-59be-4975-b6cf-a92fa7ec62cb - - - - - -] 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. 2026-04-12 21:13:01.378 1 WARNING oslo_config.cfg [None req-82de1947-59be-4975-b6cf-a92fa7ec62cb - - - - - -] Deprecated: Option "auth_uri" from group "keystone_authtoken" is deprecated. Use option "www_authenticate_uri" from group "keystone_authtoken". 2026-04-12 21:13:01.386 1 INFO cinder.service [-] Starting cinder-backup node (version 26.2.1) 2026-04-12 21:13:01.412 1 INFO cinder.backup.manager [None req-f351ef1a-65b6-45d9-a4d0-82c845b1768d - - - - - -] Cleaning up incomplete backup operations. 2026-04-12 21:13:01.483 1 INFO cinder.keymgr.migration [None req-1ee64dca-0089-487f-acde-a52dd8059e21 - - - - - -] Not migrating encryption keys because the ConfKeyManager's fixed_key is not in use.