[Linux-cluster] Cluster node without access to all resources - trouble

Lon Hohberger lhh at redhat.com
Fri Jul 6 16:23:35 UTC 2007


On Thu, Jun 28, 2007 at 09:40:54PM +0300, Janne Peltonen wrote:
> On Thu, Jun 28, 2007 at 02:33:42PM -0400, Lon Hohberger wrote:
> > (1) don't start rgmanager on the fifth node :), or
> 
> ...now there's an idea :)
> 
> > (2) if you do start rgmanager on the fifth node, make all services be
> > part of a "restricted" failover domain comprised of the other four
> > nodes.
> > 
> > > Or
> > > should I just make sure that the fifth member always comes up last (that
> > > is, won't be running while the others are coming up)? Or should I aceept
> > > that I'm going to create more harm than avoiding by letting the fifth
> > > node belong to the cluster, and just run it outside the cluster?
> > 
> > If the above two don't work, it's a bug.
> 
> If (2) means /all/ the services, even the one that should be running on
> the fifth node, it's more or less equal to (1), isn't it? That is, the
> service that I want to be running on node five can't be a clustered
> service (which is, come to think of it, exactly what I want...)

I missed the fact that there was a service you had on the fifth node.

You can either start rgmanager on the fifth node and use a 1-node
restricted domain for the service, or... start the service via init and
save a couple of MB of memory. :)

-- 
Lon Hohberger - Software Engineer - Red Hat, Inc.




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