| 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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| Lists: | pgsql-hackers |
> 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
--
Michael Meskes
Email: Michael at Fam-Meskes dot De, Michael at Meskes dot (De|Com|Net|Org)
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