| From: | Richard Huxton <dev(at)archonet(dot)com> |
|---|---|
| To: | Alex Hochberger <alex(at)dsgi(dot)us> |
| Cc: | pgsql-performance(at)postgresql(dot)org |
| Subject: | Re: Configuring a Large RAM PostgreSQL Server |
| Date: | 2007-11-29 19:15:15 |
| Message-ID: | 474F0FC3.4000109@archonet.com |
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| Lists: | pgsql-performance |
Alex Hochberger wrote:
> Does anyone have any white papers or basic guides for a large RAM server?
>
> We are consolidating two databases to enable better data-mining that
> currently run on a 4 GB and 2 GB machine. The data issues on the 4 GB
> machine are numerous, things like "create index" fail and update queries
> fail from out of memory issues.
> Problem Usage: we have a 20GB table with 120m rows that we are
> splitting into some sub-tables. Generally, we do large data pulls from
> here, 1 million - 4 million records at a time, stored in a new table for
> export. These queries are problematic because we are unable to index
> the database for the queries that we run because we get out of memory
> errors.
Would it not make sense to find out why you are getting these errors first?
It's not normal to get "out of memory" when rebuilding an index.
--
Richard Huxton
Archonet Ltd
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