[ClusterLabs] How many nodes redhat cluster does supports

[Umar Draz]

@Ken

Now what is the solution? Do I need to communicate with Redhat commercial
support on this issue?

Regards,

Umar


On Thu, Apr 28, 2022 at 3:28 AM Ken Gaillot <kgaillot at redhat.com> wrote:

> On Wed, 2022-04-27 at 22:10 +0200, Valentin Vidić via Users wrote:
> > On Thu, Apr 28, 2022 at 12:25:37AM +0500, Umar Draz wrote:
> > > * sharedfs1_start_0 on g2fs-1 'error' (1): call=158,
> > > status='complete',
> > > exitreason='Couldn't mount device [/dev/shared_vg1/shared_lv1] as
> > > /mnt/webgfs', last-rc-change='Tue Apr 26 01:07:45 2022',
> > > queued=0ms,
> > > exec=806ms
> >
> > Maybe the gfs2 filesystem was created with 2 journals so it only
> > supports 2 hosts at the same time?
> >
>
> This does seem unrelated to the cluster software per se, and more
> likely to be a GFS2 issue.
>
> But for the record, the upstream software has no official limit on node
> count; the only limits are in practice (network capabilities vs.
> Corosync's token passing algorithm). Commercial support like RHEL
> generally imposes their own limits based on practicality -- often 16 or
> 32 full cluster nodes (more are possible with Pacemaker Remote).
> --
> Ken Gaillot <kgaillot at redhat.com>
>
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-- 
Umar Draz
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