Re: [libvirt] [Patch v5 0/4] Add new feature into live migration
On Tue, Jan 11, 2011 at 09:58:21AM +0800, Wen Congyang wrote:
At 01/05/2011 10:53 AM, Wen Congyang Write:
> If the memory of guest OS is changed constantly, the live migration
> can not be ended ever for ever.
>
> We can use the command 'virsh migrate-setmaxdowntime' to control the
> live migration. But the value of maxdowntime is diffcult to calculate
> because it depends on the transfer speed of network and constantly
> changing memroy size. We need a easy way to control the live migration.
>
> This patch set add the support of forcing guest to suspend at timeout.
> With this patch set, when we migrate the guest OS, we can specify a
> timeout. If the live migration timeouts, auto-suspend the guest OS,
> where the migration will complete offline.
>
>
Ping
Hi, eric and Daniel P. Berrange
do you have time to review this patch set?
Any comment or suggestion to this patch set?
Both your patch, and Hu Tao's patch[1] for migration cancellation
are touching the same piece of code, in incompatible ways. We
want to have both your feature and Hu Tao's feature, so I think
one of you needs to merge the others' patch, and post a resulting
combined patch.
I mentioned in this posting, one possible architecture which
could address both the migrate cancel feature, and the migrate
auto-suspend / timeout feature:
http://www.redhat.com/archives/libvir-list/2011-January/msg00178.html
There may be other solutions too.
Regards,
Daniel
[1] http://www.redhat.com/archives/libvir-list/2011-January/msg00440.html