Rohit,
Also, " Keep in mind that neither qdevice nor booth is "replacement" for
stonith. "
Why not? qdevice/booth are handling the split-brain scenario, keeping one
master only even in case of local/geo network disjoints. Can you please
clarify more on this.
Yeah, you are right. I don't really want to go to much deeps of this
discussion, because opinions there seems to be like emacs/vi wars. Let's
say I'm standing more on "stonith (ideally HW) as a hard requirement" side.
Honza
Thanks,
Rohit
On Tue, Jul 14, 2020 at 3:40 PM Rohit Saini <rohitsaini111.fo...@gmail.com>
wrote:
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 <jfrie...@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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