[Pkg-libvirt-maintainers] Bug#833866: Bug#833866: please consider adding an option to suspend/resume all domains

[Guido Günther]

On Tue, Aug 09, 2016 at 05:51:10PM +0200, Marc Haber wrote:
> Package: libvirt-daemon
> Version: 2.1.0-1
> Severity: wishlist
> File: /usr/lib/libvirt/libvirt-guests.sh
> 
> Hi,
> 
> the script /usr/lib/libvirt/libvirt-guests.sh is used to shut down or
> suspend domains when the host goes down. This works like a charm.
> 
> However, currently, KVM has the issue that the host going to _sleep_
> sometimes affects the running domains: It sometimes happens that the
> domains become unresponsive CPU-hogs. I think that it might help to
> suspend the KVM domains before the host sleeps. systemd provides a
> mechanism to do that by means of /lib/systemd/system-sleep/.
> 
> /usr/lib/libvirt/libvirt-guests.sh contains most of the code needed to
> suspend all running domains, but it doesn't expose those mechanisms to
> the public.
> 
> Please consider adding a "suspend" and a "resume" option to
> /usr/lib/libvirt/libvirt-guests.sh that applies the respective
> operation to all domains even if the selected shutdown operation is
> "shutdown".
> 
> I am willing to provide a patch if you indicate that you would accept
> it.

It would make sense to propose this upstream. If it goes in there I'm
happy to apply it and the libvir-list at redhat.com folks are very friendly
people.

Cheers,
 -- Guido