I actually have a card in my trello board to implement live snapshots, pointing to this link http://www.sebastien-han.fr/blog/2015/02/09/openstack-perform-consistent-snapshots-with-qemu-guest-agent/
However, I haven't tested it yet. If you test it let me know how it goes. .a. On Sun, Apr 24, 2016 at 9:09 AM, Saverio Proto <[email protected]> wrote: >> We are in an even worst situation: we have flavors with 256GB of ram >> but only 100GB on the local hard disk, which means that we cannot >> snapshot VMs with this flavor. >> >> If there is any way to avoid saving the content of the ram to disk (or >> maybe there is a way to snapshot the ram to, e.g., ceph), we would be >> very happy. > > Hello Antonio, > > I received a new feedback in the Openstack patch review > (https://review.openstack.org/#/c/295865/) pointing me to this: > > https://github.com/openstack/nova/blob/82a684fb1ae1dd1bd49e2a8792a2456b4d3ab037/nova/conf/workarounds.py#L72 > > so it looks like live snapshots are disabled because of an old buggy > libvirt. So actually this process of dumping all the RAM to disk is > not a bad design, but it is a necessary workaround because of libvirt > not being stable. It makes sense now. > > At the moment I am running libvirt version 1.2.12-0ubuntu14.4~cloud0. > Maybe I can disable the workaround and try to do faster snapshots ? > > Any other operator has feedback about this ? > > Thank you > > Saverio -- [email protected] [email protected] +41 (0)44 635 42 22 S3IT: Service and Support for Science IT http://www.s3it.uzh.ch/ University of Zurich Winterthurerstrasse 190 CH-8057 Zurich Switzerland _______________________________________________ OpenStack-operators mailing list [email protected] http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators
