+ exec cinder-backup --config-file /etc/cinder/cinder.conf simplejson unavailable, fall-back to standard python json 2026-04-28 13:55:41.271 1 INFO cinder.cmd.backup [-] Backup running in single process mode. 2026-04-28 13:55:41.559 1 INFO cinder.rpc [None req-a69a7a46-67a0-491a-8046-fae045588df6 - - - - - -] Automatically selected cinder-backup objects version 1.39 as minimum service version. 2026-04-28 13:55:41.562 1 INFO cinder.rpc [None req-a69a7a46-67a0-491a-8046-fae045588df6 - - - - - -] Automatically selected cinder-backup RPC version 2.4 as minimum service version. 2026-04-28 13:55:41.564 1 INFO cinder.rpc [None req-a69a7a46-67a0-491a-8046-fae045588df6 - - - - - -] Automatically selected cinder-volume objects version 1.39 as minimum service version. 2026-04-28 13:55:41.567 1 INFO cinder.rpc [None req-a69a7a46-67a0-491a-8046-fae045588df6 - - - - - -] Automatically selected cinder-volume RPC version 3.20 as minimum service version. 2026-04-28 13:55:41.570 1 INFO cinder.rpc [None req-a69a7a46-67a0-491a-8046-fae045588df6 - - - - - -] Automatically selected cinder-scheduler objects version 1.39 as minimum service version. 2026-04-28 13:55:41.587 1 INFO cinder.rpc [None req-a69a7a46-67a0-491a-8046-fae045588df6 - - - - - -] Automatically selected cinder-scheduler RPC version 3.12 as minimum service version. 2026-04-28 13:55:41.662 1 WARNING oslo_config.cfg [None req-a69a7a46-67a0-491a-8046-fae045588df6 - - - - - -] 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. 2026-04-28 13:55:41.664 1 WARNING oslo_config.cfg [None req-a69a7a46-67a0-491a-8046-fae045588df6 - - - - - -] Deprecated: Option "auth_uri" from group "keystone_authtoken" is deprecated. Use option "www_authenticate_uri" from group "keystone_authtoken". 2026-04-28 13:55:41.674 1 INFO cinder.service [-] Starting cinder-backup node (version 27.1.0) 2026-04-28 13:55:41.700 1 INFO cinder.backup.manager [None req-b54181ef-0da8-4b89-98b0-fd7855ccb2eb - - - - - -] Cleaning up incomplete backup operations. 2026-04-28 13:55:41.766 1 INFO cinder.keymgr.migration [None req-a7f65ad0-7e1f-4e05-8406-a4c349a26937 - - - - - -] Not migrating encryption keys because the ConfKeyManager's fixed_key is not in use.