On Thu, Mar 26, 2015 at 2:53 PM, Steffen W Sørensen <stefws@xxxxxx> wrote:
On 26/03/2015, at 21.07, J-P Methot <jpmethot@xxxxxxxxxx> wrote:
That's a great idea. I know I can setup cinder (the openstack volume manager) as a multi-backend manager and migrate from one backend to the other, each backend linking to different pools of the same ceph cluster. What bugs me though is that I'm pretty sure the image store, glance, wouldn't let me do that. Additionally, since the compute component also has its own ceph pool, I'm pretty sure it won't let me migrate the data through openstack.
Hm wouldn’t it be possible to do something similar ala:
# list object from src pool
rados ls objects loop | filter-obj-id | while read obj; do
# export $obj to local disk
rados -p pool-wth-too-many-pgs get $obj
# import $obj from local disk to new pool
rados -p better-sized-pool put $obj
done
You would also have issues with snapshots if you do this on an RBDpool. That's unfortunately not feasible.
What isn’t possible, export-import objects out-and-in of pools or snapshots issues?
/Steffen |
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