Date: Fri, 20 Jul 2001 22:12:04 -0700
From: Sean Chittenden <sean-pgsql-hackers@chittenden.org>
To: Darren Johnson <djohnson@greatbridge.org>
Cc: pgsql-hackers@postgresql.org
Subject: Re: IDEA: Multi-master replication possible through spread (or even
	master-slave)...
Message-ID: <20010720221204.M5160@rand.tgd.net>
References: <20010720203243.J5160@rand.tgd.net>
	<3B590CC6.5040506@greatbridge.org>
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	from "djohnson@greatbridge.org" on Sat, Jul 21, 2001 at =
	01:01:58AM

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	Howdy.  Darren, I'd reply in person, but there are issues with
your mail account.  ;~)  At anyrate, is there a mailing list that the
Postgres-R development is happening on so that I could drop in and
either listen/contribute? Thanks.  -sc

<djohnson@greatbridge.org>:
63.136.234.38 does not like recipient.
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Giving up on 63.136.234.38.
=20=20=20=20=20
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Date: Fri, 20 Jul 2001 22:09:21 -0700
From: Sean Chittenden <sean@chittenden.org>
To: Darren Johnson <djohnson@greatbridge.org>
Subject: Re: [HACKERS] IDEA: Multi-master replication possible through=20
spread=20=20
+(or even master-slave)...
Message-ID: <20010720220921.L5160@rand.tgd.net>
References: <20010720203243.J5160@rand.tgd.net>=20=20
+<3B590CC6.5040506@greatbridge.org>
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"djohnson@greatbridge.org"
+on Sat, Jul 21, 2001 at =3D 01:01:58AM


On Sat, Jul 21, 2001 at 01:01:58AM -0400, Darren Johnson wrote:
> Delivered-To: chittenden.org-sean-pgsql-hackers@chittenden.org
> Date: Sat, 21 Jul 2001 01:01:58 -0400
> From: Darren Johnson <djohnson@greatbridge.org>
> User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; m18) Gecko/20=
010131 Netscape6/6.01
> X-Accept-Language: en
> To: Sean Chittenden <sean-pgsql-hackers@chittenden.org>
> CC: pgsql-hackers@postgresql.org
> Subject: Re: [HACKERS] IDEA: Multi-master replication possible through sp=
read (or even master-slave)...
>=20
> Sean Chittenden wrote:
>=20
> >         Has anyone here thought about using the spread libraries for WAL
> > replication amongst mutliple hosts?  With this library I think it'd be
> > possible to have a multi-master replication system..
>=20
> Yes, there is some work being done to use Spread as the group=20
> communication system
> for Postgres-R, but we are just getting started with this software.=20=20
> Using a group
> communication system to establish  total order messages is one of  the=20
> basic principles for
> synchronous multi-master replication with Postgres-R.  Currently=20
> Ensemble (form Cornell
> University) is used, but Spread looks to be more robust and it appears=20
> to be supported
> on most if not all of the PostgreSQL  supported platforms.=20
>=20
> It's very cool to see positive testimony for Spread, and I hope I will=20
> feel the same way
> as I become more familiar with it.

--=20
Sean Chittenden

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