Re: PostgreSQL in Cluster

From: Jonathan Bartlett <johnnyb(at)eskimo(dot)com>
To: Luiz Guilherme Freitas de Paula <luiz(at)auge(dot)com(dot)br>
Cc: Richard Huxton <dev(at)archonet(dot)com>, pgsql-general(at)postgresql(dot)org
Subject: Re: PostgreSQL in Cluster
Date: 2004-02-27 20:38:21
Message-ID: Pine.SUN.4.58.0402271237100.2605@eskimo.com
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> Is there any way to use PostgreSQL in a cluster configuration or have
> redundancy?
> How can I have my DB to not stop on hardware failure?

You can have a fail-over cluster by having an external disk array
connected to two machines, where machine B is activated, mounts the
disks, and switches off power from machine A if it fails.

Jon

>
> Thank you,
>
> Luiz
>
> > On Friday 27 February 2004 18:31, Luiz Guilherme Freitas de Paula wrote:
> > > Hi everyone,
> > >
> > > Anyone have PostgreSQL running on a cluster?
> > > I'm trying to run on a OpenMosix 2-machine cluster but the processes are
> > > not migrating. All the load is concentrating in one machine.
> >
> > I don't think openmosix allows shared memory to migrate. Since PG uses
> shared
> > memory to communicate between backends, this will cause you problems.
> >
> > > And, how can I have fail over?
> >
> > More information?
> >
> > --
> > Richard Huxton
> > Archonet Ltd
> >
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