Re: Database Synchronization

From: "Jyoti Seth" <jyotiseth2001(at)gmail(dot)com>
To: "'Richard Huxton'" <dev(at)archonet(dot)com>
Cc: <pgsql-sql(at)postgresql(dot)org>
Subject: Re: Database Synchronization
Date: 2007-07-19 04:31:14
Message-ID: 004f01c7c9bd$a657c3c0$f3074b40$@com
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Thanks a lot for your suggestions. I have ony single master.

-----Original Message-----
From: pgsql-sql-owner(at)postgresql(dot)org [mailto:pgsql-sql-owner(at)postgresql(dot)org]
On Behalf Of Richard Huxton
Sent: Wednesday, July 18, 2007 9:13 PM
To: Chris Browne
Cc: pgsql-sql(at)postgresql(dot)org
Subject: Re: [SQL] Database Synchronization

Chris Browne wrote:
> dev(at)archonet(dot)com (Richard Huxton) writes:
>>
>> http://www.slony.info/

> But it is worth noting one thing about the synchronization...
>
> Slony-I's strategy is pretty simple: One node is considered the
> "master," and the other node is forcibly made to conform to what is on
> the master.
>
> If you want to synchronize back and forth (e.g. - multimaster
> replication of some sort), Slony-I is not suitable...

Except in the case when you can have separate tables for the data. If
you have a london_sales table only updated in London and a paris_sales
table only updated in Paris then you have something inching towards
multi-master.

--
Richard Huxton
Archonet Ltd

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