Re: Replication on the backend

From: Michael Meskes <meskes(at)postgresql(dot)org>
To: pgsql-hackers(at)postgresql(dot)org
Subject: Re: Replication on the backend
Date: 2005-12-06 19:49:13
Message-ID: 200512062049.13375.meskes@postgresql.org
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> Postgres-R, pgcluster, Slony-II. Some more advanced, some less. But
> certainly nothing I would send into the ring against Oracle-Grid.

Assuming that you mean Oracle Real Application Cluster (the Grid is more,
right?) I wonder if this technology technically still counts as replication.
AFAIK they do not replicate data but share a common data pool among different
servers. You still have communication overhead but you write a tuple only
once for all servers involved. Takes away a lot of overhead on a system
that's heavily written too.

Michael
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Michael Meskes
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