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

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.