Mariposa (http://mariposa.CS.Berkeley.EDU/download.html) has a BSD licence 
but it refers to Postgres95.
Mariposa is a patch aganist postgres sources and alpha release, there are a 
lot of Papers describing this.
I've compiled under linux but no success.

It's possible that there isn't a solution or a trick to load-balance 
postgres (at least cpu load balancing with a central high speed location for 
data-bases) ?


thank you for your reply.

valter

>From: Zeugswetter Andreas SB <ZeugswetterA@wien.spardat.at>
>To: "'Tom Samplonius'" <tom@sdf.com>, Valter Mazzola <txian@hotmail.com>
>CC: pgsql-hackers@postgresql.org
>Subject: AW: [HACKERS] Scalability, Clustering
>Date: Mon, 11 Sep 2000 10:41:50 +0200
>
>
> >   I know that someone was working on a commercial extension to 
>PostgreSQL
> > to add clustering based on a shared disk system.  Basically he was added 
>a
> > raw storage manager to PostgreSQL plus a lock manager to co-oridinate
> > access to the shared disk.  That way the two nodes could co-ordinate
> > access to the shared disk.  This is very similar to Oracle Parallel
>Server.
>
>This is sad. Good Cluster DB design is based on shared nothing architecture
>and "function shipping". OPS is known to have a bad and antiquated
>architecture
>that only works well with extremely well thought out application design.
>
>Andreas

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Mon, 11 Sep 2000 13:33:26 CEST
"Valter Mazzola" <txian@hotmail.com>
Re: AW: Scalability, Clustering