Caius why not submit that patch to openstack review for cinder? I'm sure more than a few of us would be glad to voice our desire for it or something much like it to land in liberty.
-Matt On Wed, Jul 29, 2015 at 10:36 AM, Caius Howcroft <caius.howcr...@gmail.com> wrote: > Hi, > > We (bloomberg) are preparing to roll out kilo into production and one > thing is causing a lot of grief. I wonder if anyone else has > encountered it. > > We run BCPC (https://github.com/bloomberg/chef-bcpc) which is ceph > backed. When we boot an instance from volume the cinder create volume > from image function ( > > https://github.com/openstack/cinder/blob/stable/kilo/cinder/volume/drivers/rbd.py#L850 > ) > ends up pulling the entire image through the glance API, so lots of > tenants doing this creates quite a bit of load on our API nodes. > > We were confused why it did this, when its way more efficient to go > directly via rbd clone, we created a patch and tested and it seems to > work just fine (and an order of magnitude faster) > https://github.com/bloomberg/chef-bcpc/pull/742 > > So, the question is: what are other ceph backed installations doing ? > > Caius > > > -- > Caius Howcroft > @caiushowcroft > http://www.linkedin.com/in/caius > > _______________________________________________ > OpenStack-operators mailing list > OpenStack-operators@lists.openstack.org > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators >
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