Re: Multiple DB join - Mailing list pgsql-sql

From Andrew Sullivan
Subject Re: Multiple DB join
Date
Msg-id 20060815131820.GA21939@phlogiston.dyndns.org
Whole thread Raw
In response to Re: Multiple DB join  (Jorge Godoy <jgodoy@gmail.com>)
Responses Re: Multiple DB join  (Jorge Godoy <jgodoy@gmail.com>)
List pgsql-sql
On Tue, Aug 15, 2006 at 09:01:03AM -0300, Jorge Godoy wrote:
> I can think that spreading processing requirements should be one.  And
> distributing load another one.  Disk space can be solved with new disks and
> tablespaces, but we can't yet distribute the load through several servers
> without partitioning.

The cost of inter-node communication isn't nothing, though.  It
strikes me as at least possible that the overhead of dblink is going
to be larger than whatever gains one makes from adding a new server. 
For only 20M rows, I find it pretty hard to believe the gain is going
to be demonstrable.

A

-- 
Andrew Sullivan  | ajs@crankycanuck.ca
Everything that happens in the world happens at some place.    --Jane Jacobs 


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