From: Tom Lane <tgl@sss.pgh.pa.us>
To: Potentialtech <wmoran@potentialtech.com>
Cc: Prabhjot Sheena <prabhjot.sheena@rivalwatch.com>
Cc: Forums postgresql <pgsql-general@postgresql.org>
Subject: Re: Checkpoint_segments optimal value
Date: Thu, 17 Jul 2014 14:06:28 -0400
Message-ID: <7639.1405620388@sss.pgh.pa.us> (raw)
In-Reply-To: <20140717140103.4e8c05e8ef5b89817b4d160a@potentialtech.com>
References: <CAOf_bQYehfKp7CNRa_pYQ+-SmHyDSYJ8bddbaixXUcWmSjH6wA@mail.gmail.com>
<20140717140103.4e8c05e8ef5b89817b4d160a@potentialtech.com>
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Potentialtech <wmoran@potentialtech.com> writes:
> If the warning isn't happening too often, I would try increasing it only a
> little and see if it helps. If it's not enough you can then increase it some
> more. Various sources around the Internet suggest that you don't want to go
> much larger than 256 for this (if only because it's uncommon to do so and is
> probably indicative of other tuning that you need to do). Unfortunatley, you
> need to restart PG for the change to take effect, so you have to balance
> experimenting with your tuning against how often you can get away with a server
> restart.
Huh? You don't need a restart, just a reload (SIGHUP) to change that.
regards, tom lane
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Subject: Re: Checkpoint_segments optimal value
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