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Re: Core team statement on replication in PostgreSQL

From: David Fetter <david(at)fetter(dot)org>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Peter Eisentraut <peter_e(at)gmx(dot)net>, pgsql-hackers(at)postgresql(dot)org,Bruce Momjian <bruce(at)momjian(dot)us>, Josh Berkus <josh(at)agliodbs(dot)com>,Marko Kreen <markokr(at)gmail(dot)com>
Subject: Re: Core team statement on replication in PostgreSQL
Date: 2008-05-29 20:50:51
Message-ID: 20080529205051.GB31478@fetter.org (view raw or flat)
Thread:
Lists: pgsql-advocacypgsql-hackers
On Thu, May 29, 2008 at 04:44:19PM -0400, Tom Lane wrote:
> David Fetter <david(at)fetter(dot)org> writes:
> > On Thu, May 29, 2008 at 09:54:03PM +0200, Peter Eisentraut wrote:
> >> I think the consensus in the core team was that having
> >> synchronous log shipping in 8.4 would already be a worthwhile
> >> feature by itself.

I'm sorry if I was unclear on this.  I don't disagree that it would be
a worthy feature.  I do disagree with the idea, given this goal, that
we can expect to ship 8.4 without a built-in replication and have that
be good enough by itself.

> > If that was in fact the consensus of the core team, and what I've
> > been seeing from several core members in this thread makes that
> > idea unclear, it's out of step with the stated goal of the
> > feature.  Having some kind of half-way,
> > doesn't-actually-quite-work-out-of-the-box "replication" will make
> > things worse and not better.
> 
> What is your justification for denigrating this plan with that?  Or
> are you merely complaining because we know we won't be all the way
> there in 8.4?

Again, just my humble opinion, but given the stated goal, which I
agree with, I'd say it's worth holding up 8.4 until some kind of
out-of-the-box replication advances that goal, where Yet Another
Toolkit Suitable For People Who Are Already Database Kernel Hackers To
Build Replication Systems On Top Of does not.

Cheers,
David.
-- 
David Fetter <david(at)fetter(dot)org> http://fetter.org/
Phone: +1 415 235 3778  AIM: dfetter666  Yahoo!: dfetter
Skype: davidfetter      XMPP: david(dot)fetter(at)gmail(dot)com

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