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From: Mischa Sandberg <[email protected]>
To: Bruce Momjian <[email protected]>
Cc: Joshua D. Drake <[email protected]>
Cc: Jeff Davis <[email protected]>
Cc: Marc G. Fournier <[email protected]>
Cc: Robert Treat <[email protected]>
Cc: PostgreSQL-documentation <[email protected]>
Subject: Re: [COMMITTERS] pgsql: Remove replicaiton FAQ item.
Date: Sun, 24 Apr 2005 17:04:21 -0700
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
References: <[email protected]>

Quoting Bruce Momjian <[email protected]>: 
 
> Mischa Sandberg wrote: 
> > About all you can say is, it is not possible to implement 
> synchronous  
> > master-master replication, because of conflict resolution of  
> > simultaneous transactions.  
>  
> You mean asynchronous master-master?  There are some implementations 
> (Sybase?, pgreplicator) that do this and have conflict resolution. 
 
Forgive my kibitz, then; perhaps my head has been stuck in sand a 
while. You're right, I forgot about the nicer bits of Sybase 
RepServer. Synchronous replication was scratched early in the project, 
because two-phase commit took too long across a dozen db servers. 
 
Pgreplicator advertises itself as a "store-and-forward asynch replica 
(sic) engine." (quoth http://pgreplicator.sourceforge.net/ ) 
--  
"Dreams come true, not free." -- S.Sondheim, ITW  

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