tuning our database by increasing shared buffer

From: Barbara Stephenson <barbara(at)turbocorp(dot)com>
To: pgsql-admin(at)postgresql(dot)org
Subject: tuning our database by increasing shared buffer
Date: 2009-06-23 19:02:30
Message-ID: 200906231502.30337.barbara@turbocorp.com
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Hello,
We will be consolidating from 4 databases to 2 and want to make sure that
these parameters are the only ones that need changing. Please advise.

Current Future
===== =====
Max_connection = 50 125
Shared_buffers = 16MB 48MB

My concern is that max_locks_per_transaction and max_prepared_transaction are
still set as default??

Shouldn't we increase the max_locks_per_transaction from 64 to 100 or 128
since we have more than doubled the # of connections?

max_prepared_transaction is set at default of 5 which is says if we use it to
set it to max_connection.

Or leaving those 2 max parameters as default would be ok?
--
Regards,

Barbara Stephenson
EDI Specialist/Programmer
Turbo, division of OHL
2251 Jesse Jewell Pkwy
Gainesville, GA 30507
tel: (678)989-3020 fax: (404)935-6171
barbara(at)turbocorp(dot)com
www.ohl.com

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