From:
"Matthew T(dot) O'Connor" <matthew(at)zeut(dot)net>
To:
Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc:
Alvaro Herrera <alvherre(at)commandprompt(dot)com>,
Heikki Linnakangas <heikki(at)enterprisedb(dot)com>,
Gregory Stark <stark(at)enterprisedb(dot)com>,
Stefan Kaltenbrunner <stefan(at)kaltenbrunner(dot)cc>,
Guillaume Smet <guillaume(dot)smet(at)gmail(dot)com>,
PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject:
Re: First steps with 8.3 and autovacuum launcher
Date:
2007-10-01 20:40:21
Message-ID:
47015B35.6000600@zeut.net (view raw or flat )
Thread:
2007-09-18 16:51:04 from "Guillaume Smet" <guillaume(dot)smet(at)gmail(dot)com>
2007-09-19 03:30:05 from Decibel! <decibel(at)decibel(dot)org>
2007-09-19 07:08:58 from "Guillaume Smet" <guillaume(dot)smet(at)gmail(dot)com>
2007-09-19 14:53:29 from Decibel! <decibel(at)decibel(dot)org>
2007-09-22 10:06:57 from "Guillaume Smet" <guillaume(dot)smet(at)gmail(dot)com>
2007-09-22 15:38:52 from Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
2007-09-22 16:17:37 from "Guillaume Smet" <guillaume(dot)smet(at)gmail(dot)com>
2007-09-30 18:26:46 from Stefan Kaltenbrunner <stefan(at)kaltenbrunner(dot)cc>
2007-10-01 13:58:44 from "Guillaume Smet" <guillaume(dot)smet(at)gmail(dot)com>
2007-10-01 15:44:02 from Stefan Kaltenbrunner <stefan(at)kaltenbrunner(dot)cc>
2007-10-01 17:15:08 from Gregory Stark <stark(at)enterprisedb(dot)com>
2007-10-01 17:35:41 from Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
2007-10-01 17:42:41 from Heikki Linnakangas <heikki(at)enterprisedb(dot)com>
2007-10-01 19:59:16 from Alvaro Herrera <alvherre(at)commandprompt(dot)com>
2007-10-01 20:26:00 from Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
2007-10-01 20:40:21 from "Matthew T(dot) O'Connor" <matthew(at)zeut(dot)net>
2007-10-01 20:50:07 from Alvaro Herrera <alvherre(at)commandprompt(dot)com>
2007-10-01 21:33:42 from Simon Riggs <simon(at)2ndquadrant(dot)com>
2007-10-01 22:53:40 from Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
2007-10-01 22:56:55 from Alvaro Herrera <alvherre(at)commandprompt(dot)com>
2007-10-01 23:14:21 from Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
2007-10-02 09:23:12 from Michael Paesold <mpaesold(at)gmx(dot)at>
2007-10-01 23:04:39 from "Matthew T(dot) O'Connor" <matthew(at)zeut(dot)net>
2007-10-01 23:28:02 from Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
2007-10-01 23:35:36 from Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
2007-10-01 23:43:45 from Alvaro Herrera <alvherre(at)commandprompt(dot)com>
2007-10-01 23:48:27 from Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
2007-10-02 09:19:54 from Michael Paesold <mpaesold(at)gmx(dot)at>
2007-10-02 14:55:00 from Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
2007-10-02 14:58:22 from Alvaro Herrera <alvherre(at)commandprompt(dot)com>
2007-10-02 15:17:47 from Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
2007-10-03 14:02:28 from Alvaro Herrera <alvherre(at)commandprompt(dot)com>
2007-10-03 16:42:30 from Alvaro Herrera <alvherre(at)commandprompt(dot)com>
2007-10-03 23:21:09 from Alvaro Herrera <alvherre(at)commandprompt(dot)com>
2007-10-04 09:01:41 from Heikki Linnakangas <heikki(at)enterprisedb(dot)com>
2007-10-04 12:53:16 from "Guillaume Smet" <guillaume(dot)smet(at)gmail(dot)com>
2007-10-04 13:04:06 from Alvaro Herrera <alvherre(at)commandprompt(dot)com>
2007-10-04 15:07:02 from Gregory Stark <stark(at)enterprisedb(dot)com>
2007-10-04 15:10:31 from Simon Riggs <simon(at)2ndquadrant(dot)com>
2007-10-04 15:45:46 from Heikki Linnakangas <heikki(at)enterprisedb(dot)com>
2007-10-04 16:55:57 from Alvaro Herrera <alvherre(at)commandprompt(dot)com>
2007-10-04 17:30:55 from Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
2007-10-04 18:33:16 from Alvaro Herrera <alvherre(at)commandprompt(dot)com>
2007-10-04 18:40:46 from Simon Riggs <simon(at)2ndquadrant(dot)com>
2007-10-04 19:32:07 from Simon Riggs <simon(at)2ndquadrant(dot)com>
2007-10-04 21:33:42 from Alvaro Herrera <alvherre(at)commandprompt(dot)com>
2007-10-05 12:27:54 from Simon Riggs <simon(at)2ndquadrant(dot)com>
2007-10-09 20:10:01 from Simon Riggs <simon(at)2ndquadrant(dot)com>
2007-10-10 03:52:15 from Alvaro Herrera <alvherre(at)commandprompt(dot)com>
2007-10-10 09:04:34 from Michael Paesold <mpaesold(at)gmx(dot)at>
2007-10-10 09:53:47 from Simon Riggs <simon(at)2ndquadrant(dot)com>
2007-10-10 10:17:43 from "Heikki Linnakangas" <heikki(at)enterprisedb(dot)com>
2007-10-10 10:48:56 from Simon Riggs <simon(at)2ndquadrant(dot)com>
2007-10-11 19:59:08 from Michael Paesold <mpaesold(at)gmx(dot)at>
2007-10-11 20:22:46 from Simon Riggs <simon(at)2ndquadrant(dot)com>
2007-10-12 05:24:29 from Alvaro Herrera <alvherre(at)commandprompt(dot)com>
2007-10-12 06:17:51 from Simon Riggs <simon(at)2ndquadrant(dot)com>
2007-10-12 06:40:25 from Simon Riggs <simon(at)2ndquadrant(dot)com>
2007-10-12 07:23:57 from Deblauwe Gino <gino(at)useitgroup(dot)com>
2007-10-12 09:08:21 from Michael Paesold <mpaesold(at)gmx(dot)at>
2007-10-12 14:19:57 from Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
2007-10-12 15:02:02 from Simon Riggs <simon(at)2ndquadrant(dot)com>
2007-10-12 15:26:20 from Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
2007-10-12 16:32:47 from Simon Riggs <simon(at)2ndquadrant(dot)com>
2007-10-12 16:42:48 from Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
2007-10-12 17:30:30 from Simon Riggs <simon(at)2ndquadrant(dot)com>
2007-10-12 17:51:42 from Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
2007-10-12 18:16:55 from Simon Riggs <simon(at)2ndquadrant(dot)com>
2007-10-12 09:44:20 from Michael Paesold <mpaesold(at)gmx(dot)at>
2007-10-12 11:00:54 from Simon Riggs <simon(at)2ndquadrant(dot)com>
2007-10-12 12:27:31 from Deblauwe Gino <gino(at)useitgroup(dot)com>
2007-10-04 18:42:10 from Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
2007-10-11 13:57:22 from Gregory Stark <stark(at)enterprisedb(dot)com>
2007-10-04 14:27:52 from Simon Riggs <simon(at)2ndquadrant(dot)com>
2007-10-04 14:43:16 from Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
2007-10-04 15:03:00 from Simon Riggs <simon(at)2ndquadrant(dot)com>
2007-10-01 15:57:03 from "Guillaume Smet" <guillaume(dot)smet(at)gmail(dot)com>
Lists:
pgsql-hackers
Tom Lane wrote:
> Alvaro Herrera <alvherre(at)commandprompt(dot)com> writes:
>
>> This is an interesting idea, but I think it's attacking the wrong
>> problem. To me, the problem here is that an ANALYZE should not block
>> CREATE INDEX or certain forms of ALTER TABLE.
>>
>
> I doubt that that will work; in particular I'm pretty dubious that you
> can safely make CREATE INDEX and VACUUM run together. Since they'd be
> unlikely to be using the identical OldestXmin horizon, you'd likely end
> up with dangling index entries (ie, CREATE INDEX indexes a tuple that
> the VACUUM removes shortly afterward).
I think the main issue is ANALYZE not VACUUM (at least in this thread)
since it's DB load times that are in question. Can CREATE INDEX and
ANALYZE be made to run concurrently?
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Next :From: Alvaro HerreraDate: 2007-10-01 20:50:07Subject : Re: First steps with 8.3 and autovacuum launcherPrevious :From : Magnus HaganderDate : 2007-10-01 20:30:06Subject : pgsql: Use BIO functions to avoid passing FILE * pointers to OpenSSL
