Aug 25 11:12:51.462931 np0000008072 systemd[1]: Started devstack@c-vol.service - Devstack devstack@c-vol.service.
Aug 25 11:12:51.603853 np0000008072 cinder-volume[98962]: /opt/stack/cinder/cinder/__init__.py:21: EventletDeprecationWarning:
Aug 25 11:12:51.603853 np0000008072 cinder-volume[98962]: Eventlet is deprecated. It is currently being maintained in bugfix mode, and
Aug 25 11:12:51.603853 np0000008072 cinder-volume[98962]: we strongly recommend against using it for new projects.
Aug 25 11:12:51.603853 np0000008072 cinder-volume[98962]: If you are already using Eventlet, we recommend migrating to a different
Aug 25 11:12:51.603853 np0000008072 cinder-volume[98962]: framework.  For more detail see
Aug 25 11:12:51.603853 np0000008072 cinder-volume[98962]: https://eventlet.readthedocs.io/en/latest/asyncio/migration.html
Aug 25 11:12:51.603853 np0000008072 cinder-volume[98962]:   import eventlet  # noqa
Aug 25 11:12:52.757006 np0000008072 cinder-volume[98962]: Traceback (most recent call last):
Aug 25 11:12:52.757006 np0000008072 cinder-volume[98962]:   File "/opt/stack/data/venv/bin/cinder-volume", line 3, in <module>
Aug 25 11:12:52.757006 np0000008072 cinder-volume[98962]:     from cinder.cmd.volume import main
Aug 25 11:12:52.757006 np0000008072 cinder-volume[98962]:   File "/opt/stack/cinder/cinder/cmd/volume.py", line 42, in <module>
Aug 25 11:12:52.757006 np0000008072 cinder-volume[98962]:     from cinder import service
Aug 25 11:12:52.757006 np0000008072 cinder-volume[98962]:   File "/opt/stack/cinder/cinder/service.py", line 50, in <module>
Aug 25 11:12:52.757006 np0000008072 cinder-volume[98962]:     from cinder.volume import volume_utils
Aug 25 11:12:52.757006 np0000008072 cinder-volume[98962]:   File "/opt/stack/cinder/cinder/volume/volume_utils.py", line 65, in <module>
Aug 25 11:12:52.757006 np0000008072 cinder-volume[98962]:     from cinder.volume import driver
Aug 25 11:12:52.757006 np0000008072 cinder-volume[98962]:   File "/opt/stack/cinder/cinder/volume/driver.py", line 419, in <module>
Aug 25 11:12:52.757006 np0000008072 cinder-volume[98962]:     CONF.import_opt('backup_use_same_host', 'cinder.backup.api')
Aug 25 11:12:52.757006 np0000008072 cinder-volume[98962]:   File "/opt/stack/data/venv/lib/python3.12/site-packages/oslo_config/cfg.py", line 3356, in import_opt
Aug 25 11:12:52.757006 np0000008072 cinder-volume[98962]:     __import__(module_str)
Aug 25 11:12:52.757006 np0000008072 cinder-volume[98962]:   File "/opt/stack/cinder/cinder/backup/api.py", line 60, in <module>
Aug 25 11:12:52.757006 np0000008072 cinder-volume[98962]:     class API(base.Base):
Aug 25 11:12:52.757006 np0000008072 cinder-volume[98962]:   File "/opt/stack/cinder/cinder/backup/api.py", line 379, in API
Aug 25 11:12:52.758462 np0000008072 cinder-volume[98962]:     backup: objects.Backup):
Aug 25 11:12:52.758462 np0000008072 cinder-volume[98962]:             ^^^^^^^^^^^^^^
Aug 25 11:12:52.758462 np0000008072 cinder-volume[98962]: AttributeError: module 'cinder.objects' has no attribute 'Backup'
Aug 25 11:12:52.953882 np0000008072 systemd[1]: devstack@c-vol.service: Main process exited, code=killed, status=12/USR2
Aug 25 11:12:52.954086 np0000008072 systemd[1]: devstack@c-vol.service: Failed with result 'signal'.