RE: [gentoo-cluster] Cluster config tool?

From: Donnie Berkholz; Thursday, April 22, 2004 11:35 AM
> On Thu, 2004-04-22 at 14:00, Lombard, David N wrote:
> > > Anyone know of a meta-tool designed to configure a large number of
> > > different programs for clusters?
> >
> > Could you expand on this?
>
> Programs using different mechanisms for clustering generally don't
have
> the same configuration file (MPICH, LAM-MPI, etc.). The point would be
> to have one tool that would maintain a consistent cluster
configuration
> for all the necessary programs.
>
> It occurred to me that cfengine might do this well, but I haven't had
a
> chnce to look into it.

I would certainly agree that cfengine would be an outstanding solution.
You can use on of the config files (or even some alternate neutral
format file) to drive the others.  The nice thing about this solution is
that the supporting stanza for each package is independent of the
others, and the absence of the package on the node, e.g., LAM/MPI is not
installed on the cluster, is easily handled.

Alternatively, a cluster stack like OSCAR uses its infrastructure (DB,
API, &etc) to have package-specific scripts respond to events like
add-node, delete-node, add-package, &etc.  This maintains host lists (as
you suggest above), ssh keys, and whatever else is needed by each
package that is aware of the existence of the cluster.  You could pursue
this by proposing to add and maintain Gentoo support in OSCAR.  You can
start with oscar-devel@×××××××××××××××××.net

NPACI Rocks is an alternate cluster stack, but it embeds RH. OSCAR
currently works for RH and Mandrake, with efforts to extend to Debian
currently underway.

-- 
David N. Lombard
My comments represent my opinions, not those of Intel Corporation.



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