hi,
 what do you mean for c-vol? it you mean cinder volumes, yes they work fine.
and don't understand how kolla can be a problem, rootwrap is and openstack "standard" tool.
for what i can see, the problem is that cinder-backup starts, create the volume to backup (i can see it briefly on the storage, nfs share) THEN suddlenly it is removed AND that error appears.

thank you

On Wed, May 31, 2023 at 3:47 PM Sofia Enriquez <senrique@redhat.com> wrote:
Hi Garcetto, hope you are doing well,

Are the c-vol services facing the same issue? From the logs looks like a configuration problem with kolla. 

Cheers,

On Wed, May 31, 2023 at 11:56 AM garcetto <garcetto@gmail.com> wrote:
goodmorning,
 using kolla-openstack zed cluster, cinder backend is nfs, cinder-backup is another nfs too.
when i try to do backup:

#openstack volume backup create 43e97a6d-c965-4127-8334-df5b5e8e8a05

(on cinder-backup container)
(/var/log/cinder-backup.log)
"
ERROR oslo_messaging.rpc.server Command: sudo cinder-rootwrap /etc/cinder/rootwrap.conf chown 42407 /var/lib/cinder/mnt/6c827b655049ba4f069fd5f103620555/volume-20f3c72c-0b57-4500-b552-5056d12fd9c7
2023-05-31 12:37:37.551 7 ERROR oslo_messaging.rpc.server Exit code: 1
2023-05-31 12:37:37.551 7 ERROR oslo_messaging.rpc.server Stdout: ''
2023-05-31 12:37:37.551 7 ERROR oslo_messaging.rpc.server Stderr: "/bin/chown: changing ownership of '/var/lib/cinder/mnt/6c827b655049ba4f069fd5f103620555/volume-20f3c72c-0b57-4500-b552-5056d12fd9c7': Invalid argument\n"
2023-05-31 12:37:37.551 7 ERROR oslo_messaging.rpc.server
"

could anyone give me advice how to proceed?
thank you for your time.



--

Sofía Enriquez

she/her

Software Engineer

Red Hat PnT

IRC: @enriquetaso