Re: pg_upgrade from 9.1 to 9.2 takes a really long time (compared to previous versions)?

From: Bruce Momjian <bruce(at)momjian(dot)us>
To: Lonni J Friedman <netllama(at)gmail(dot)com>
Cc: pgsql-admin(at)postgresql(dot)org
Subject: Re: pg_upgrade from 9.1 to 9.2 takes a really long time (compared to previous versions)?
Date: 2012-11-07 20:59:50
Message-ID: 20121107205950.GE26215@momjian.us
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On Wed, Nov 7, 2012 at 10:44:12AM -0800, Lonni J Friedman wrote:
> On Wed, Nov 7, 2012 at 10:42 AM, Bruce Momjian <bruce(at)momjian(dot)us> wrote:
> > On Fri, Oct 19, 2012 at 02:44:05PM -0700, Lonni J Friedman wrote:
> >> Greetings,
> >> I'm in the process of planning for a production upgrade from 9.1.6 to
> >> 9.2.x (all Linux-x86-64). In my staging environment (which has the
> >> same versions), I kicked off pg_upgrade about 5 hours ago, and its
> >> still not done. It is making progress, so I don't think anything has
> >> gone wrong, beyond it taking much longer than anticipated.
> >>
> >> When I used pg_upgrade to go from 9.0.x to 9.1.x, it finished in just
> >> under an hour. There is admittedly about three times as much data (in
> >> terms of disk usage) now than when I upgraded from 9.0.x. Would that
> >> explain the increased time needed to do the upgrade? Or is there
> >> something about the upgrade to 9.2.x that requires a lot more time?
> >>
> >> I'm trying to understand if what I'm seeing is expected, normal
> >> behavior, or if something might not be right.
> >
> > Odd. How many object/tables do you have? I have just patched 9.2 to
> > improve upgrades for clusters with many objects.
>
> about 5000 tables spread across 5 databases.

That should not take very long. Are you using link mode?

--
Bruce Momjian <bruce(at)momjian(dot)us> http://momjian.us
EnterpriseDB http://enterprisedb.com

+ It's impossible for everything to be true. +

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