On Tue, May 14, 2024 at 10:07:14AM +0000, Bertrand Drouvot wrote:
> While resuming the work on refilenode stats (mentioned in [1] but did not 
> share
> the patch yet), I realized that my current POC patch is buggy enough to 
> produce
> things like:
> 
> 024-05-14 09:51:14.783 UTC [1788714] FATAL:  can only drop stats once
> 
> While the CONTEXT provides the list of dropped stats:
> 
> 2024-05-14 09:51:14.783 UTC [1788714] CONTEXT:  WAL redo at 0/D75F478 for 
> Transaction/ABORT: 2024-05-14 09:51:14.782223+00; dropped stats: 
> 2/16384/27512/0 2/16384/27515/0 2/16384/27516/0

Can refcount be useful to know in this errcontext?

> Attached a tiny patch to report the stat that generates the error. The patch 
> uses
> errdetail_internal() as the extra details don't seem to be useful to average
> users.

I think that's fine.  Overall that looks like useful information for
debugging, so no objections from here.
--
Michael

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