From: | Mike Broers <mbroers(at)gmail(dot)com> |
---|---|
To: | Kevin Grittner <kgrittn(at)ymail(dot)com> |
Cc: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, "pgsql-admin(at)postgresql(dot)org" <pgsql-admin(at)postgresql(dot)org>, "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org>, Jan Wieck <JanWieck(at)yahoo(dot)com> |
Subject: | Re: [ADMIN] after 9.2.4 patch vacuumdb -avz not analyzing all tables |
Date: | 2013-04-12 14:10:53 |
Message-ID: | CAB9893gZ3k6PYm7NRsWHm3vzBGUQ-UuorCHVfDN_gDDaFstF4A@mail.gmail.com |
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Lists: | pgsql-admin pgsql-hackers |
On further review this particular server skipped from 9.2.2 to 9.2.4. This
is my most busy and downtime sensitive server and I was waiting on a
maintenance window to patch to 9.2.3 when 9.2.4 dropped and bumped up the
urgency. However, I have 3 other less busy production servers that were
all running 9.2.3 for a while, didnt exhibit the problem, and still dont on
9.2.4.
psql> analyze seems to work ok in the meantime, I'll report back if I
notice any problems with that.
Thanks very much for the response and investigation, it is much
appreciated!
On Thu, Apr 11, 2013 at 8:48 PM, Kevin Grittner <kgrittn(at)ymail(dot)com> wrote:
> Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
>
> > However I've got to say that both of those side-effects of
> > exclusive-lock abandonment seem absolutely brain dead now that I
> > see them. Why would we not bother to tell the stats collector
> > what we've done? Why would we think we should not do ANALYZE
> > when we were told to?
> >
> > Would someone care to step forward and defend this behavior?
> > Because it's not going to be there very long otherwise.
>
> I'm pretty sure that nobody involved noticed the impact on VACUUM
> ANALYZE command; all discussion was around autovacuum impact; and
> Jan argued that this was leaving things in a status quo for that,
> so I conceded the point and left it for a follow-on patch if
> someone felt the behavior needed to change. Sorry for the miss.
>
> http://www.postgresql.org/message-id/50BB700E.8060404@Yahoo.com
>
> As far as I'm concerned all effects on the explicit command were
> unintended and should be reverted.
>
> --
> Kevin Grittner
> EnterpriseDB: http://www.enterprisedb.com
> The Enterprise PostgreSQL Company
>
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