Re: Reduce logging during prepared transaction recovery

From: Ashutosh Sharma <ashu(dot)coek88(at)gmail(dot)com>
To: Fujii Masao <masao(dot)fujii(at)gmail(dot)com>
Cc: Pierre Forstmann <pierre(dot)forstmann(at)gmail(dot)com>, pgsql-hackers(at)lists(dot)postgresql(dot)org
Subject: Re: Reduce logging during prepared transaction recovery
Date: 2026-10-29 05:30:00
Message-ID: CAE9k0PnQ6pxKukmg2euq2qkzBFFqMD2dkpdfoVpEoPPouun7iA@mail.gmail.com
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Hi,

Thanks for your review comments/suggestions.

On Wed, Oct 28, 2026 at 5:15 PM Fujii Masao <masao(dot)fujii(at)gmail(dot)com> wrote:
>
> On Wed, Oct 28, 2026 at 7:15 PM Ashutosh Sharma <ashu(dot)coek88(at)gmail(dot)com> wrote:
> > Thanks for the review and suggestions. I agree that we can verify
> > these changes by adding log checks to the existing TAP test for
> > two-phase transactions. I’ve done that in the attached patch, which is
> > based on the changes suggested in your earlier patch. Please take a
> > look and let me know if you have any other comments.
>
> Thanks for updating the patch!
>
> - ereport(LOG,
> + ereport(DEBUG1,
>
> Do we want to keep this debug message translatable? If not, we could
> simplify this to elog().
>
> Also, DEBUG2 might be more consistent with per-transaction messages
> in PrepareRedoAdd() and PrepareRedoRemoveFull()? Those use elog(DEBUG2, ...).
> This would also avoid flooding the log at DEBUG1.
>

It's a developer-facing message, so I agree that it doesn't need to be
translatable. I've changed it to elog(DEBUG2, ...) in the attached
patch, consistent with PrepareRedoAdd() and PrepareRedoRemoveFull().

--
With Regards,
Ashutosh Sharma.

Attachment Content-Type Size
v3-0001-Reduce-logging-during-prepared-transaction-recovery.patch application/octet-stream 4.3 KB

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