Re: [PROPOSAL] VACUUM Progress Checker.

From: Mike Blackwell <mike(dot)blackwell(at)rrd(dot)com>
To: Josh Berkus <josh(at)agliodbs(dot)com>
Cc: PgHacker <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: [PROPOSAL] VACUUM Progress Checker.
Date: 2015-07-25 00:21:32
Message-ID: CANPAkgsaqq7Gzu8zDWQQ6jC3Gsu8c12rLv75WHdjgUrGqZuJkA@mail.gmail.com
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​Something like that would be helpful. I just had to stop one after an
hour and have no idea how much longer it would have taken.​

__________________________________________________________________________________
*Mike Blackwell | Technical Analyst, Distribution Services/Rollout
Management | RR Donnelley*
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Office: 630.313.7818
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<http://www.rrdonnelley.com/>
* <Mike(dot)Blackwell(at)rrd(dot)com>*

On Fri, Jul 24, 2015 at 5:41 PM, Josh Berkus <josh(at)agliodbs(dot)com> wrote:

> On 07/24/2015 11:06 AM, Jim Nasby wrote:
> > On 7/23/15 5:18 AM, Thakur, Sameer wrote:
> >> Hello,
> >>> >logged > 25 times
> >> Sorry, it is much lower at 7 times. Does not change overall point though
> >
> > I think it's related to the problem of figuring out how many dead tuples
> > you expect to find in the overall heap, which you need to do to have any
> > hope of this being a comprehensive estimate.
>
> What about just reporting scanned pages/total pages ? That would be
> easy and cheap to track. It would result in some herky-jerky
> "progress", but would still be an improvement over the feedback we don't
> have now.
>
> --
> Josh Berkus
> PostgreSQL Experts Inc.
> http://pgexperts.com
>
>
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