+ exec cinder-backup --config-file /etc/cinder/cinder.conf simplejson unavailable, fall-back to standard python json 2026-04-12 21:12:38.800 1 INFO cinder.cmd.backup [-] Backup running in single process mode. 2026-04-12 21:12:39.085 1 INFO cinder.rpc [None req-55b2cc8b-6586-4f3f-afac-70bd860def6a - - - - - -] Automatically selected cinder-backup objects version 1.39 as minimum service version. 2026-04-12 21:12:39.089 1 INFO cinder.rpc [None req-55b2cc8b-6586-4f3f-afac-70bd860def6a - - - - - -] Automatically selected cinder-backup RPC version 2.4 as minimum service version. 2026-04-12 21:12:39.096 1 INFO cinder.rpc [None req-55b2cc8b-6586-4f3f-afac-70bd860def6a - - - - - -] Automatically selected cinder-volume objects version 1.39 as minimum service version. 2026-04-12 21:12:39.100 1 INFO cinder.rpc [None req-55b2cc8b-6586-4f3f-afac-70bd860def6a - - - - - -] Automatically selected cinder-volume RPC version 3.20 as minimum service version. 2026-04-12 21:12:39.103 1 INFO cinder.rpc [None req-55b2cc8b-6586-4f3f-afac-70bd860def6a - - - - - -] Automatically selected cinder-scheduler objects version 1.39 as minimum service version. 2026-04-12 21:12:39.106 1 INFO cinder.rpc [None req-55b2cc8b-6586-4f3f-afac-70bd860def6a - - - - - -] Automatically selected cinder-scheduler RPC version 3.12 as minimum service version. 2026-04-12 21:12:39.171 1 WARNING oslo_config.cfg [None req-55b2cc8b-6586-4f3f-afac-70bd860def6a - - - - - -] 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 21:12:39.172 1 WARNING oslo_config.cfg [None req-55b2cc8b-6586-4f3f-afac-70bd860def6a - - - - - -] Deprecated: Option "auth_uri" from group "keystone_authtoken" is deprecated. Use option "www_authenticate_uri" from group "keystone_authtoken". 2026-04-12 21:12:39.182 1 INFO cinder.service [-] Starting cinder-backup node (version 26.2.1) 2026-04-12 21:12:39.209 1 INFO cinder.backup.manager [None req-fe955d64-ab30-4b75-a89b-93f7bc14abd6 - - - - - -] Cleaning up incomplete backup operations. 2026-04-12 21:12:39.267 1 INFO cinder.keymgr.migration [None req-92d67414-ec76-403a-8dfb-fce592f2db21 - - - - - -] Not migrating encryption keys because the ConfKeyManager's fixed_key is not in use.