Jul 07 19:20:38.866906 np0000004757 systemd[1]: Started devstack@c-bak.service - Devstack devstack@c-bak.service.
Jul 07 19:20:38.995374 np0000004757 cinder-backup[98091]: /opt/stack/cinder/cinder/__init__.py:21: EventletDeprecationWarning:
Jul 07 19:20:38.995374 np0000004757 cinder-backup[98091]: Eventlet is deprecated. It is currently being maintained in bugfix mode, and
Jul 07 19:20:38.995374 np0000004757 cinder-backup[98091]: we strongly recommend against using it for new projects.
Jul 07 19:20:38.995374 np0000004757 cinder-backup[98091]: If you are already using Eventlet, we recommend migrating to a different
Jul 07 19:20:38.995374 np0000004757 cinder-backup[98091]: framework.  For more detail see
Jul 07 19:20:38.995374 np0000004757 cinder-backup[98091]: https://eventlet.readthedocs.io/en/latest/asyncio/migration.html
Jul 07 19:20:38.995374 np0000004757 cinder-backup[98091]:   import eventlet  # noqa
Jul 07 19:20:40.469216 np0000004757 cinder-backup[98091]: Traceback (most recent call last):
Jul 07 19:20:40.469216 np0000004757 cinder-backup[98091]:   File "/opt/stack/data/venv/bin/cinder-backup", line 3, in <module>
Jul 07 19:20:40.469734 np0000004757 cinder-backup[98091]:     from cinder.cmd.backup import main
Jul 07 19:20:40.469734 np0000004757 cinder-backup[98091]:   File "/opt/stack/cinder/cinder/cmd/backup.py", line 53, in <module>
Jul 07 19:20:40.469734 np0000004757 cinder-backup[98091]:     cfg.IntOpt('backup_workers',
Jul 07 19:20:40.469734 np0000004757 cinder-backup[98091]:   File "/opt/stack/data/venv/lib/python3.12/site-packages/oslo_config/cfg.py", line 1179, in __init__
Jul 07 19:20:40.469734 np0000004757 cinder-backup[98091]:     super().__init__(
Jul 07 19:20:40.469734 np0000004757 cinder-backup[98091]: TypeError: Opt.__init__() got an unexpected keyword argument 'max_default'
Jul 07 19:20:40.621452 np0000004757 cinder-backup[98091]: Exception ignored in: <function _removeHandlerRef at 0x7eb201c0a7a0>
Jul 07 19:20:40.621452 np0000004757 cinder-backup[98091]: Traceback (most recent call last):
Jul 07 19:20:40.621452 np0000004757 cinder-backup[98091]:   File "/usr/lib/python3.12/logging/__init__.py", line 884, in _removeHandlerRef
Jul 07 19:20:40.621452 np0000004757 cinder-backup[98091]:   File "/usr/lib/python3.12/logging/__init__.py", line 241, in _acquireLock
Jul 07 19:20:40.621683 np0000004757 cinder-backup[98091]:   File "/usr/lib/python3.12/threading.py", line 198, in acquire
Jul 07 19:20:40.621683 np0000004757 cinder-backup[98091]:   File "/opt/stack/data/venv/lib/python3.12/site-packages/eventlet/green/thread.py", line 39, in get_ident
Jul 07 19:20:40.621683 np0000004757 cinder-backup[98091]: RuntimeError: greenlet is being finalized
Jul 07 19:20:40.784937 np0000004757 systemd[1]: devstack@c-bak.service: Main process exited, code=exited, status=1/FAILURE
Jul 07 19:20:40.785156 np0000004757 systemd[1]: devstack@c-bak.service: Failed with result 'exit-code'.