[Linux-HA] Xen multiple resource instance prevention

Andrew Beekhof beekhof at gmail.com
Mon Oct 1 11:16:25 MDT 2007


On 10/1/07, Dominik Klein <dk at in-telegence.net> wrote:
> >> I love the fact that when I force migrate a resource to the other node
> >> it sets automatically up a -INFINITY to the other node doing exactly
> >> what I want.
> >>
> >> I tried setting up the preferred node with INFINITY and the other with
> >> -INFINITY but then the migration didn't work.
> >
> > odd, it probably should.  can you include logs?
>
> Not odd, imho. When migrating via a constraint that sets -inf for the
> current host, then both hosts are scored -inf so the rsc cannot run

oh, i missed this second half

> anywhere. At least thats my understanding of this case.
>
> Regards
> Dominik
>
> ps. I do the same thing with Xen domU using a DRBD device. There, DRBD
> makes sure the domU does not run on more than one host at a time.
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