On 07/22/2014 09:53 PM, Logan Barfield wrote:
I was testing on a recent 4.4 build today and noticed that volume resizing for RBD volumes is not working as intended. In LibvirtComputingResource.java the 'getResizeScriptType()' function doesn't have logic for type = RBD and format = RAW or QCOW2, so it returns 'null' and the resize operation fails. In CLOUDSTACK-6181 there was some discussion regarding RBD support, and it was signed off on by Wido (who appears to be the only contributor actively supporting Ceph in CloudStack). Was the mentioned functionality just never implemented, or am I overlooking something?
So it seems you are right. I can't remember anymore why I signed it off (probably because it worked locally), but what you are saying is true.
RBD are block devices which do not exist in kernel space, so a script can never check if the volume exists.
The fix is rather simple, since libvirt can resize the volume it's just a matter of a few if-statements in LibvirtComputing resouce, I'll get right to that, but it will never make it into 4.4. Hopefully 4.4.1
Wido
Thank You, Logan Barfield Tranquil Hosting
