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Re: [libvirt] [PATCH 3/6] Introduce yet another migration version in API.



On Thu, Apr 21, 2011 at 09:33:42AM -0400, Stefan Berger wrote:
> On 04/21/2011 07:43 AM, Daniel P. Berrange wrote:
> >On Thu, Apr 21, 2011 at 07:37:30AM -0400, Stefan Berger wrote:
> >>
> >>and simply doesn't start the VM. After this function is called all
> >>sockets are closed and the communication with the source host is
> >>cut. I don't think it allows for fall-back at this point.
> >Sure it does. As long as the destination QEMU CPUs have not been
> >started, you can fallback by simply killing the dest QEMU and
> >restarting CPUs on the src QEMU.
> >
> FWIW, I did a test and disabled the starting of the CPUs on the
> destination side and
> did a sleep() instead. Before the sleep() was over the Qemu on the
> source side had already disappeared.

That is with the old v2 migration protocol. In the new v3 protocol
that has changed to work as I described.


Daniel
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