Re: Logging pg_autovacuum

From: "Larry Rosenman" <lrosenman(at)pervasive(dot)com>
To: "Jim Nasby" <jnasby(at)pervasive(dot)com>
Cc: <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Logging pg_autovacuum
Date: 2006-05-01 18:15:13
Message-ID: F6616E0E81AC0841B1F9DD252F7C4B55041A4D@ausmaildd.aus.pervasive.com
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Jim C. Nasby wrote:
> On Mon, May 01, 2006 at 12:28:21PM -0500, Larry Rosenman wrote:
>> Since both vacuum and autovacuum will be cutting stats records, do we
>> want to just have the autovacuum
>> stats record have the fact that it was autovacuum that did the
>> vacuum?
>>
>> Or, is there a way when vacuum is run by autovacuum that I can get a
>> flag to set that says this (vacuum|analyze) was done by the
>> autovacuum daemon?
>>
>> I agree that the existing stats calls are good, but I'm still reading
>> code to see whether I can determine
>> at the time they are cut that this was autovacuum that did it.
>
> I think noting autovac vacuums/analyzes seperately is 'nice-to-have'
> but not all that important. It'd probably be pretty easy to tell the
> difference just knowing what (if any) manual vacuums your system runs.
>
> While we're looking at logging, are you going to add stats stuff for
> the bgwriter as well, or should we add this to the TODO?

I was going to do that after I got some comfort with what I'm doing
here.

--
Larry Rosenman
Database Support Engineer

PERVASIVE SOFTWARE. INC.
12365B RIATA TRACE PKWY
3015
AUSTIN TX 78727-6531

Tel: 512.231.6173
Fax: 512.231.6597
Email: Larry(dot)Rosenman(at)pervasive(dot)com
Web: www.pervasive.com

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