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Date: Mon, 23 Nov 2009 10:19:46 -0600
From: Anthony Liguori <anthony@codemonkey.ws>
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Subject: [Qemu-devel] Re: Live migration protocol, device features,
	ABIs and   other beasts
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To: Gleb Natapov <gleb@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>, Juan Quintela <quintela@trasno.org>, qemu-devel@nongnu.org

Gleb Natapov wrote:
> I am OK with management being responsible to sort things out. Juan
> said that destination can't abort migration in the middle, so I pointed
> out easy solution that will work in 99.999% cases.
>   

I think there's something elegant about doing migration in a 
unidirectional stream.  It makes live migration work to a file, to a 
qcow2 file, etc. with no protocol change.

The ack'ing bits can be done by a live migration transport since it 
happens entirely at the end of the stream.  The old ssh: migration used 
to do this and provided a simple means that worked 99.999% of the time :-)

Regards,

Anthony Liguori

> --
> 			Gleb.
>