if gluster cannot be mounted cinder-volumes fail to start

[Dafna Ron]

I configured cinder to work with gluster as backend and due to some issue mounting gluster cinder-volumes could not be started

I am not sure this is a correct behaviour since if a service is down we need to manually start it (which is not nice to do in a large scale deployment with lots of cinder servers).

I think that the best practice for this would be to allow the service to start and try to mount every X time so that when the storage is available it will automatically connect - so not needing manual interference from the admin.

[Avishay Traeger (avishay-il)]

I would suggest making this generic - the driver's do_setup implementation can raise some "unavailable" exception, and the manager can then retry. I saw at least one other driver fix this issue, and it exists in others as well - the fix should be made generic.

[Eric Harney (eharney)]

I think this was fixed when the driver is_initialized changes went in.

[Eric Harney (eharney)]

This was fixed with the changes to require drivers to be initialized for operations to occur.