From: Alvaro Herrera <alvherre@2ndquadrant.com>
To: Robert Haas <robertmhaas@gmail.com>
Cc: Stephen Frost <sfrost@snowman.net>
Cc: Thomas Munro <thomas.munro@enterprisedb.com>
Cc: Andres Freund <andres@anarazel.de>
Cc: Evan Rempel <erempel@uvic.ca>
Cc: pgsql-admin@postgresql.org <pgsql-admin@postgresql.org>
Cc: Pg Hackers <pgsql-hackers@postgresql.org>
Subject: Re: [HACKERS] 9.5 new setting "cluster name" and logging
Date: Tue, 18 Oct 2016 15:38:52 -0300
Message-ID: <20161018183852.3grybpr3qbyyho33@alvherre.pgsql> (raw)
In-Reply-To: <CA+TgmoaAJMZ6kuapWbWPorz0wk5BqdTqWSkwD=_T1UZB3hYfEQ@mail.gmail.com>
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Robert Haas wrote:
> On Mon, Oct 17, 2016 at 6:24 PM, Stephen Frost <sfrost@snowman.net> wrote:
> > I'm with Thomas on this and I disagree that the "csvlog bloat" argument
> > has merit. If we're worried about bloat in csv then we should provide a
> > way for users to control what goes into the csvlog, not argue that
> > something which is clearly useful be excluded.
>
> I agree, but I think if we do that it would be highly desirable do
> something to make the format discoverable. For example, at the
> beginning of each file and whenever the format changes, we write some
> kind of unmistakable header line into the file identifying what fields
> will be present on each line thereafter. It's undesirable for log
> analysis tools to need to contain logic that tries (imperfectly, no
> doubt) to reverse-engineer the field list.
Hmm, I wouldn't use the same file for different formats. If the format
is changed, a different file should be used.
--
Álvaro Herrera https://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
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Cc: alvherre@2ndquadrant.com, robertmhaas@gmail.com, sfrost@snowman.net, thomas.munro@enterprisedb.com, andres@anarazel.de, erempel@uvic.ca, pgsql-hackers@postgresql.org
Subject: Re: [HACKERS] 9.5 new setting "cluster name" and logging
In-Reply-To: <20161018183852.3grybpr3qbyyho33@alvherre.pgsql>
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