Glusterfs driver was deprecated in the Newton release and removed in the Ocata release.

https://docs.openstack.org/releasenotes/cinder/ocata.html

On Thu, Jul 9, 2020 at 12:05 PM lejeczek <peljasz@yahoo.co.uk> wrote:
Hi guys,

I've packstaked a deployment with:

CONFIG_CINDER_BACKEND=gluster
CONFIG_CINDER_VOLUMES_CREATE=y
CONFIG_CINDER_GLUSTER_MOUNTS=127.0.0.1:/VMs

But after seemingly all work okey I keep getting:

2020-07-09 16:18:03.157 2547017 ERROR cinder.cmd.volume Traceback (most recent call last):
2020-07-09 16:18:03.157 2547017 ERROR cinder.cmd.volume   File "/usr/lib/python3.6/site-packages/cinder/cmd/volume.py", line 103, in _launch_service
2020-07-09 16:18:03.157 2547017 ERROR cinder.cmd.volume     cluster=cluster)
2020-07-09 16:18:03.157 2547017 ERROR cinder.cmd.volume   File "/usr/lib/python3.6/site-packages/cinder/service.py", line 400, in create
2020-07-09 16:18:03.157 2547017 ERROR cinder.cmd.volume     cluster=cluster, **kwargs)
2020-07-09 16:18:03.157 2547017 ERROR cinder.cmd.volume   File "/usr/lib/python3.6/site-packages/cinder/service.py", line 155, in __init__
2020-07-09 16:18:03.157 2547017 ERROR cinder.cmd.volume     *args, **kwargs)
2020-07-09 16:18:03.157 2547017 ERROR cinder.cmd.volume   File "/usr/lib/python3.6/site-packages/cinder/volume/manager.py", line 267, in __init__
2020-07-09 16:18:03.157 2547017 ERROR cinder.cmd.volume     active_backend_id=curr_active_backend_id)
2020-07-09 16:18:03.157 2547017 ERROR cinder.cmd.volume   File "/usr/lib/python3.6/site-packages/oslo_utils/importutils.py", line 44, in import_object
2020-07-09 16:18:03.157 2547017 ERROR cinder.cmd.volume     return import_class(import_str)(*args, **kwargs)
2020-07-09 16:18:03.157 2547017 ERROR cinder.cmd.volume   File "/usr/lib/python3.6/site-packages/oslo_utils/importutils.py", line 30, in import_class
2020-07-09 16:18:03.157 2547017 ERROR cinder.cmd.volume     __import__(mod_str)
2020-07-09 16:18:03.157 2547017 ERROR cinder.cmd.volume ModuleNotFoundError: No module named 'cinder.volume.drivers.glusterfs'
2020-07-09 16:18:03.157 2547017 ERROR cinder.cmd.volume
...

I'm Centos 8 with "ussuri".
Would you know & share a solution?

many thanks, L.