Re: Problems with PostGreSQL and Windows 2003 - Mailing list pgsql-performance

From Heikki Linnakangas
Subject Re: Problems with PostGreSQL and Windows 2003
Date
Msg-id [email protected]
Whole thread Raw
In response to Problems with PostGreSQL and Windows 2003  ([email protected])
Responses Re: Problems with PostGreSQL and Windows 2003
List pgsql-performance
[email protected] wrote:
> I'm having serious peformance problems with PostGreSQL and Windows Server 2003
> Enterprise Edition. The PostgreSQL Server don't starts if I set the shared
> buffers high than
> 1GB. All my programs can use only 3 GB of RAM and I have 8GB of RAM.
> When I try to execute a query in a table about 4 milion registers, my
> application crashes with an error memory message.

What error message do you get if setting shared_buffers higher than 1GB?
Exactly what error message do you get when the application crashes?

> work_mem =512MB                # min 64kB

That's way too high for most applications. In a complex query, each sort
or hash node can will use up work_mem amount of memory. That means that
if you have a very complex query with several such nodes, it will run
out of memory. Try something like 16MB.


--
   Heikki Linnakangas
   EnterpriseDB   http://www.enterprisedb.com

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