From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
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To: | Kishore B <kishorebh(at)gmail(dot)com> |
Cc: | "pgsql-admin(at)postgresql(dot)org" <pgsql-admin(at)postgresql(dot)org> |
Subject: | Re: Help needed to set the Optimal Value for shared_buffers. |
Date: | 2005-07-02 13:52:32 |
Message-ID: | 25021.1120312352@sss.pgh.pa.us |
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Lists: | pgsql-admin |
Kishore B <kishorebh(at)gmail(dot)com> writes:
> 1) I am new to administering postgresql. When I was wandering
> through the configuration files for the PostgreSQL, I observed the
> 'fsync' file. This file is almost identical to the postgresql.conf
> file, but with differing values for parameters and some new / deleted
> parameters when compared with the postgresql.conf file. What is the
> file for? Does it have any specific importance to be taken care of?
There is no such file in any standard distribution of Postgres. I guess
that some previous admin of your machine made it as a copy of one set of
config parameters that he was experimenting with.
> 2) What is the optimall value for shared_buffers parameter to be set
> for a huge database that contains a table with upto '4GB' data.
Opinions vary, but I would say that 10000-50000 buffers is a reasonable
range to be working in.
regards, tom lane
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