+ exec cinder-backup --config-file /etc/cinder/cinder.conf simplejson unavailable, fall-back to standard python json 2026-04-23 10:04:29.524 1 INFO cinder.cmd.backup [-] Backup running in single process mode. 2026-04-23 10:04:29.811 1 INFO cinder.rpc [None req-85fd603c-8e23-4e04-9964-d1202acc6e63 - - - - - -] Automatically selected cinder-backup objects version 1.39 as minimum service version. 2026-04-23 10:04:29.814 1 INFO cinder.rpc [None req-85fd603c-8e23-4e04-9964-d1202acc6e63 - - - - - -] Automatically selected cinder-backup RPC version 2.4 as minimum service version. 2026-04-23 10:04:29.816 1 INFO cinder.rpc [None req-85fd603c-8e23-4e04-9964-d1202acc6e63 - - - - - -] Automatically selected cinder-volume objects version 1.39 as minimum service version. 2026-04-23 10:04:29.818 1 INFO cinder.rpc [None req-85fd603c-8e23-4e04-9964-d1202acc6e63 - - - - - -] Automatically selected cinder-volume RPC version 3.20 as minimum service version. 2026-04-23 10:04:29.821 1 INFO cinder.rpc [None req-85fd603c-8e23-4e04-9964-d1202acc6e63 - - - - - -] Automatically selected cinder-scheduler objects version 1.39 as minimum service version. 2026-04-23 10:04:29.824 1 INFO cinder.rpc [None req-85fd603c-8e23-4e04-9964-d1202acc6e63 - - - - - -] Automatically selected cinder-scheduler RPC version 3.12 as minimum service version. 2026-04-23 10:04:29.891 1 WARNING oslo_config.cfg [None req-85fd603c-8e23-4e04-9964-d1202acc6e63 - - - - - -] 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. 2026-04-23 10:04:29.892 1 WARNING oslo_config.cfg [None req-85fd603c-8e23-4e04-9964-d1202acc6e63 - - - - - -] Deprecated: Option "auth_uri" from group "keystone_authtoken" is deprecated. Use option "www_authenticate_uri" from group "keystone_authtoken". 2026-04-23 10:04:29.900 1 INFO cinder.service [-] Starting cinder-backup node (version 27.1.0) 2026-04-23 10:04:29.927 1 INFO cinder.backup.manager [None req-8968a3b0-02bd-4184-9851-b84dcc55bc84 - - - - - -] Cleaning up incomplete backup operations. 2026-04-23 10:04:29.996 1 INFO cinder.keymgr.migration [None req-c2feff4c-e4ec-430f-8ea7-cd8827926c42 - - - - - -] Not migrating encryption keys because the ConfKeyManager's fixed_key is not in use.