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Date: Wed, 11 Feb 2009 21:07:07 +0530
Message-ID: <a97c77030902110737v1321d2d5va32daee833a0ad50@mail.gmail.com>
Subject: Re: controlling autovacuum during the day.
From: Rajesh Kumar Mallah <mallah.rajesh@gmail.com>
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: John Lister <john.lister-ps@kickstone.com>, pgsql-admin@postgresql.org
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On Wed, Dec 17, 2008 at 7:17 PM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
> "John Lister" <john.lister-ps@kickstone.com> writes:
>> I'd like to use autovacuum to clean up the tables rather than schedule a
>> full vacuum with cron as it will be more selective/intelligent about what
>> gets cleaned. But is it possible to stop it running during peak/office
>> hours?
>
> No.  Instead, set the vacuum cost parameters to make it run slow enough
> to not interfere too much with your work.

is it a bad idea to have such a feature ?
i was going through ./src/backend/postmaster/autovacuum.c
looks like  subroutine autovac_start can be modfied to
for the said feature. In case it does not have negative implication
can i submit a patch ?

regds
-- mallah.


>
>                        regards, tom lane
>
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