Hi,
we are running OpenStack Mitaka on CentOS + RDO and use Ceph Infernalis as our
main (and only) storage engine (glance, cinder, cinder-backup).
As far as I can see, Change 205282 [1] made it into Mitaka (stable), so my
current task is making snapshotting faster. Our hypervisors boot from 16GB
disks, currently running out of memory when snapshots use the generic method.
Reading the specs / blueprint, the new method should be used automatically but
I think there are missing permissions resulting in falling back to generic
snapshots.
Do I need to give cinder-backup rwx to volumes, vms and images?
client.cinder
key: ...
caps: [mon] allow r
caps: [osd] allow class-read object_prefix rbd_children, allow rwx
pool=volumes, allow rwx pool=vms, allow rx pool=images
client.cinder-backup
key: ...
caps: [mon] allow r
caps: [osd] allow class-read object_prefix rbd_children, allow rwx
pool=backups
client.glance
key: ...
caps: [mon] allow r
caps: [osd] allow class-read object_prefix rbd_children, allow rwx
pool=images
And last but not least: Am I able to disable generic snapshotting completly? It
has no use for us.
Best Regards,
Kevin
[1] https://review.openstack.org/#/c/205282/
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