Re: [Qemu-devel] [RFC] New Migration Protocol using Visitor Interface

[Anthony Liguori]

On 10/03/2011 10:45 AM, Michael S. Tsirkin wrote:
> > BTW, putting this info properly into migration stats would probably
> > be pretty useful.
> >
> > Regards,
> >
> > Anthony Liguori
>
> Problem is adding anything to monitor makes me worry
> about future compatibility so much I usually just give up.
> IMO we really need a namespace for in-development experimental
> commands, like "unsupported-XXX", this would belong.

Or just make all of QMP unsupported across any given version.  I'm not kidding 
about that actually.

If we document what the protocol is for any given version, then a layer like 
libvirt can deal with providing a consistent interface.

I often wonder who we're trying to preserve compatibility for.  Part of 
libvirt's mission statement is providing a stable API so why not leverage that 
mission and get us out of the compatibility business.

Regards,

Anthony Liguori

>