Re: Why is parula failing?

From: David Rowley <dgrowleyml(at)gmail(dot)com>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: pgsql-hackers(at)lists(dot)postgresql(dot)org, tharar(at)amazon(dot)com
Subject: Re: Why is parula failing?
Date: 2024-05-13 23:24:53
Message-ID: CAApHDvqyLF881EvDtXT=ossa0i4ioJBtW2c0Wbouzt5d3HDb5Q@mail.gmail.com
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On Thu, 21 Mar 2024 at 13:53, David Rowley <dgrowleyml(at)gmail(dot)com> wrote:
>
> On Thu, 21 Mar 2024 at 12:36, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> > So yeah, if we could have log_autovacuum_min_duration = 0 perhaps
> > that would yield a clue.
>
> FWIW, I agree with your earlier statement about it looking very much
> like auto-vacuum has run on that table, but equally, if something like
> the pg_index record was damaged we could get the same plan change.
>
> We could also do something like the attached just in case we're
> barking up the wrong tree.

I've not seen any recent failures from Parula that relate to this
issue. The last one seems to have been about 4 weeks ago.

I'm now wondering if it's time to revert the debugging code added in
1db689715. Does anyone think differently?

David

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