[ClusterLabs] qnetd and booth arbitrator running together in a 3rd geo site

[Rohit Saini]

Thanks Honja. That's helpful.
Let's say I don't use qnetd, can I achieve same with booth arbitrator?
Booth arbitrator works for geo-clusters, can the same arbitrator be reused
for local clusters as well?
Is it even possible technically?

Regards,
Rohit

On Tue, Jul 14, 2020 at 3:32 PM Jan Friesse <jfriesse at redhat.com> wrote:

> Rohit,
>
> > Hi Team,
> > Can I execute corosync-qnetd and booth-arbitrator on the same VM in a
> > different geo site? What's the recommendation? Will it have any
> limitations
> > in a production deployment?
>
> There is no technical limitation. Both qnetd and booth are very
> lightweight and work just fine with high latency links.
>
> But I don't really have any real-life experiences with deployment where
> both booth and qnetd are used. It should work, but I would recommend
> proper testing - especially what happens when arbitrator node disappears.
>
> > Due to my architecture limitation, I have only one arbitrator available
> > which is on a 3rd site. To handle cluster split-brain errors, I am
> thinking
> > to use same arbitrator for local cluster as well.
> > STONITH is not useful in my case as it is limited only to ILO and VIRT.
>
> Keep in mind that neither qdevice nor booth is "replacement" for stonith.
>
> Regards,
>    Honza
>
> >
> > [image: image.png]
> >
> > Thanks,
> > Rohit
> >
> >
> >
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