+ exec cinder-backup --config-file /etc/cinder/cinder.conf simplejson unavailable, fall-back to standard python json 2026-04-02 17:14:07.825 1 INFO cinder.cmd.backup [-] Backup running in single process mode. 2026-04-02 17:14:08.050 1 INFO cinder.rpc [None req-2d296107-7923-4db5-a729-8769cfb86112 - - - - - -] Automatically selected cinder-backup objects version 1.39 as minimum service version. 2026-04-02 17:14:08.053 1 INFO cinder.rpc [None req-2d296107-7923-4db5-a729-8769cfb86112 - - - - - -] Automatically selected cinder-backup RPC version 2.3 as minimum service version. 2026-04-02 17:14:08.056 1 INFO cinder.rpc [None req-2d296107-7923-4db5-a729-8769cfb86112 - - - - - -] Automatically selected cinder-volume objects version 1.39 as minimum service version. 2026-04-02 17:14:08.059 1 INFO cinder.rpc [None req-2d296107-7923-4db5-a729-8769cfb86112 - - - - - -] Automatically selected cinder-volume RPC version 3.18 as minimum service version. 2026-04-02 17:14:08.062 1 INFO cinder.rpc [None req-2d296107-7923-4db5-a729-8769cfb86112 - - - - - -] Automatically selected cinder-scheduler objects version 1.39 as minimum service version. 2026-04-02 17:14:08.065 1 INFO cinder.rpc [None req-2d296107-7923-4db5-a729-8769cfb86112 - - - - - -] Automatically selected cinder-scheduler RPC version 3.12 as minimum service version. 2026-04-02 17:14:08.108 1 WARNING oslo_config.cfg [None req-2d296107-7923-4db5-a729-8769cfb86112 - - - - - -] 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. 2026-04-02 17:14:08.109 1 WARNING oslo_config.cfg [None req-2d296107-7923-4db5-a729-8769cfb86112 - - - - - -] Deprecated: Option "auth_uri" from group "keystone_authtoken" is deprecated. Use option "www_authenticate_uri" from group "keystone_authtoken". 2026-04-02 17:14:08.120 1 INFO cinder.service [-] Starting cinder-backup node (version 21.3.3) 2026-04-02 17:14:08.137 1 INFO cinder.backup.manager [None req-9969c071-f495-49c8-b927-f8971728c22c - - - - - -] Cleaning up incomplete backup operations. 2026-04-02 17:14:08.273 1 INFO cinder.keymgr.migration [None req-6404060b-0be3-42bb-9622-f19bcce8b4e5 - - - - - -] Not migrating encryption keys because the ConfKeyManager's fixed_key is not in use.