Re: Question about load balance

From: John R Pierce <pierce(at)hogranch(dot)com>
To: PostgreSQL <pgsql-general(at)postgresql(dot)org>
Subject: Re: Question about load balance
Date: 2012-06-12 07:48:08
Message-ID: 4FD6F438.9080500@hogranch.com
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On 06/11/12 11:29 PM, Condor wrote:
> I think I'm trying to learn information what is the technique for
> managing large databases
> not to philosophize what was my server.

you handle large databases with a lot of fast disk, and memory, this
gets you into the terabytes.

clustering/load balancing would not do for this, other than needing MORE
fast disk (N replicas require N times the disk system of one
database). clustering can provide active/slave failover for high
availability, or it can provide replicas for balancing read queries.
updates have to be made to all the replicas, so they wont be any faster
than a single server (in fact, will be slower due to the overhead of
replication

--
john r pierce N 37, W 122
santa cruz ca mid-left coast

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