From: Vivek Khera <khera@kcilink.com>
To: pgsql-performance@postgresql.org
Subject: Re: Data Warehouse Reevaluation - MySQL vs Postgres -- merge tables
Date: Tue, 14 Sep 2004 14:27:46 -0400
Message-ID: <x7pt4ou2n1.fsf@yertle.int.kciLink.com> (raw)
References: <20040914073943.95193.qmail@web41502.mail.yahoo.com>
>>>>> "MC" == Mark Cotner <mcotner@yahoo.com> writes:
MC> I've finished porting the schema and am importing the
MC> data now. My estimates for just two-thirds(60 of the
MC> 90 days) of one of our 30 cable systems(MySQL dbs) is
MC> estimated to take about 16 hours. This may seem like
MC> a lot, but I'm satisfied with the performance. I've
be sure to load your data without indexes defined for your initial
import.
check your logs to see if increasing checkpoint_segments is
recommended. I found that bumping it up to 50 helped speed up my
data loads (restore from dump) significantly.
--
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Vivek Khera, Ph.D. Khera Communications, Inc.
Internet: khera@kciLink.com Rockville, MD +1-301-869-4449 x806
AIM: vivekkhera Y!: vivek_khera http://www.khera.org/~vivek/
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To: pgsql-performance@postgresql.org
Cc: khera@kcilink.com
Subject: Re: Data Warehouse Reevaluation - MySQL vs Postgres -- merge tables
In-Reply-To: <x7pt4ou2n1.fsf@yertle.int.kciLink.com>
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