[Pacemaker] Question: How many nodes can join a cluster?

[Pavlos Parissis]

On 18 October 2010 10:52, Florian Haas <florian.haas at linbit.com> wrote:

> ----- Original Message -----
> > From: "Andreas Vogelsang" <a.vogelsang at uni-muenster.de>
> > To: pacemaker at oss.clusterlabs.org
> > Sent: Monday, October 18, 2010 9:46:12 AM
> > Subject: [Pacemaker] Question: How many nodes can join a cluster?
> > Hello,
> >
> >
> >
> > I’m creating a presentation about a virtual Linux-HA Cluster. I just
> > asked me how many nodes pacemaker can handle. Mr. Schwartzkopff wrote
> > in his Book that Linux-HA version 2 can handle up to 16 Nodes. Is this
> > also true for pacemaker?
>

I have been asked the same question and I said to them, let's say it is 126,
what is the use of having 126 nodes in the cluster?
Can someone imagine himself going through the logs to find why the
resource-XXX failed while there are 200 resources?!!

The only use of having 126 nodes is if you want to have HPC, but HPC is
total different story than high available clusters.
Even in N+N setup I would go with more than 4 or 6 nodes.


My 2 cents,
Pavlos
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