From: Tom Lane <tgl@sss.pgh.pa.us>
To: Andres Freund <andres@anarazel.de>
cc: Noah Misch <noah@leadboat.com>, Peter Geoghegan <pg@bowt.ie>,
        David Rowley <dgrowleyml@gmail.com>,
        PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>
Subject: Re: Intermittent buildfarm failures on wrasse
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Comments: In-reply-to Andres Freund <andres@anarazel.de>
	message dated "Thu, 14 Apr 2022 09:18:50 -0700"
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Date: Thu, 14 Apr 2022 12:26:20 -0400
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Andres Freund <andres@anarazel.de> writes:
> Thanks! Can you repro the problem manually on wrasse, perhaps even
> outside the buildfarm script?

I'm working on that right now, actually...

> I wonder if we should make VACUUM log the VERBOSE output at DEBUG1
> unconditionally. This is like the third bug where we needed that
> information, and it's practically impossible to include in regression
> output. Then we'd know what the xid horizon is, whether pages were
> skipped, etc.

Right at the moment it seems like we also need visibility into what
CREATE INDEX is doing.

I'm not sure I'd buy into permanent changes here (at least not ones made
in haste), but temporarily adding more logging seems perfectly reasonable.

			regards, tom lane