Il 11/Feb/2015 19:10 "Adam Litke" <alitke(a)redhat.com> ha scritto:
On 11/02/15 17:30 +0000, Soeren Malchow wrote:
>
> Dear all,
>
> i am a little lost, i tried quite a few things with the snapshots, so
> far with python scripts I can iterate through the existing machines,
> take one, make a snapshot and all this.
>
> However, there are 2 problems I can not get around:
>
> 1. even when on 3.5.1 I can not delete a snapshot on a running VM, if
> I understood that correctly this relies on the Live Merge Feature
> where the code is available in vdsm already but it needs a certain
> libvirt version !?!? So question here is, can I delete a snapshot or
> not ? can I use only the rest API not python (excuse me I am not a
> developer)
I can answer this one at least. For now, Centos 7 is lacking a new
enough version of libvirt to support Live Merge (> 1.2.7). The
virt-preview repository for Fedora is shipping a newer libvirt. You
can check if vdsm will support live merge by executing the following
on the host in question:
sudo vdsClient -s 0 getVdsCaps | grep liveMerge
RHEL 7.1 will be shipping a version with the neccessary backports to
support live merge so I imagine Centos 7.1 will pick those up
automatically?
--
Adam Litke
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I confirm that at least on f21 tc3 I was able to live delete snapshots,
also into the active layer.
See:
http://lists.ovirt.org/pipermail/users/2014-November/029450.html
and the whole thread.
I hope that RHEL 7.1 (and CentOS) will have the merging into the active
layer too.... and not only into the chain history.
Gianluca