+ exec cinder-backup --config-file /etc/cinder/cinder.conf simplejson unavailable, fall-back to standard python json 2026-04-14 13:29:04.035 1 INFO cinder.cmd.backup [-] Backup running in single process mode. 2026-04-14 13:29:04.314 1 INFO cinder.rpc [None req-c3c62c41-21c2-442c-9da7-36101d4263bf - - - - - -] Automatically selected cinder-backup objects version 1.39 as minimum service version. 2026-04-14 13:29:04.317 1 INFO cinder.rpc [None req-c3c62c41-21c2-442c-9da7-36101d4263bf - - - - - -] Automatically selected cinder-backup RPC version 2.4 as minimum service version. 2026-04-14 13:29:04.319 1 INFO cinder.rpc [None req-c3c62c41-21c2-442c-9da7-36101d4263bf - - - - - -] Automatically selected cinder-volume objects version 1.39 as minimum service version. 2026-04-14 13:29:04.321 1 INFO cinder.rpc [None req-c3c62c41-21c2-442c-9da7-36101d4263bf - - - - - -] Automatically selected cinder-volume RPC version 3.20 as minimum service version. 2026-04-14 13:29:04.324 1 INFO cinder.rpc [None req-c3c62c41-21c2-442c-9da7-36101d4263bf - - - - - -] Automatically selected cinder-scheduler objects version 1.39 as minimum service version. 2026-04-14 13:29:04.326 1 INFO cinder.rpc [None req-c3c62c41-21c2-442c-9da7-36101d4263bf - - - - - -] Automatically selected cinder-scheduler RPC version 3.12 as minimum service version. 2026-04-14 13:29:04.394 1 WARNING oslo_config.cfg [None req-c3c62c41-21c2-442c-9da7-36101d4263bf - - - - - -] 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. 2026-04-14 13:29:04.395 1 WARNING oslo_config.cfg [None req-c3c62c41-21c2-442c-9da7-36101d4263bf - - - - - -] Deprecated: Option "auth_uri" from group "keystone_authtoken" is deprecated. Use option "www_authenticate_uri" from group "keystone_authtoken". 2026-04-14 13:29:04.406 1 INFO cinder.service [-] Starting cinder-backup node (version 26.2.1) 2026-04-14 13:29:04.432 1 INFO cinder.backup.manager [None req-bbd51d78-606b-4e6b-96c8-1c0b3c486055 - - - - - -] Cleaning up incomplete backup operations. 2026-04-14 13:29:04.495 1 INFO cinder.keymgr.migration [None req-7fc866cb-6edf-4bcc-a428-c49e87e297da - - - - - -] Not migrating encryption keys because the ConfKeyManager's fixed_key is not in use.