Re: Slightly OT.

From: "Joshua D(dot) Drake" <jd(at)commandprompt(dot)com>
To: Alexander Staubo <alex(at)purefiction(dot)net>
Cc: "gonzales(at)linuxlouis(dot)net" <gonzales(at)linuxlouis(dot)net>, Guillaume Lelarge <guillaume(at)lelarge(dot)info>, Kenneth Downs <ken(at)secdat(dot)com>, nikolay(at)samokhvalov(dot)com, pgsql-general(at)postgresql(dot)org
Subject: Re: Slightly OT.
Date: 2007-06-01 15:08:44
Message-ID: 4660367C.4050905@commandprompt.com
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Alexander Staubo wrote:
> On 6/1/07, gonzales(at)linuxlouis(dot)net <gonzales(at)linuxlouis(dot)net> wrote:
>> I'm disappointed because SLONY-II has not been released yet to support
>> multi-master replication!
>
> I wouldn't pin all my hopes on a project still under development. (For
> me, personally, add the fact that Slony-I still has not solved
> single-master replication in a way that doesn't burden the
> developer/DBA with lots of unnecessary extra maintenance; I am not
> counting on its developers to fix this issue in Slony-II.)
>
> In the meantime, Cybertec (http://www.postgresql.at/, an Austrian
> company) just announced a commercial synchronous multimaster
> replication product based on 2-phase commit. It's expensive, and I
> can't speak for its maturity, and it may or may not scale as well as
> the projected Slony-II design, but the setup seems dead simple, and
> from the docs I have found it seems to transparently replicate schema
> changes, unlike Slony-I. So that's something.

I could be completely cranked but I believe that product is based on
PgCluster which is horrendously slow.

To be fair, it is still under heavy development and does show promise.

Joshua D. Drake

>
> Alexander.
>
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