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From: Nathan Bossart <nathandbossart@gmail.com>
To: Robert Haas <robertmhaas@gmail.com>
Cc: Matthias van de Meent <boekewurm+postgres@gmail.com>
Cc: PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>
Subject: Re: cleanup patches for incremental backup
Date: Wed, 24 Jan 2024 13:39:22 -0600
Message-ID: <20240124193922.GA2711912@nathanxps13> (raw)
In-Reply-To: <CA+TgmobWwfMpog9Yz=krBT1=sobGzWNxuEiCXg4Hh92fNOMHJw@mail.gmail.com>
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	<CA+TgmobTfzrnBesboXutZmrABdP79mO2HhXupY5YOdZ9VLWFog@mail.gmail.com>
	<CAEze2WjhdVCqEe_qqEok3NA6DwUdOGSBjAxzmYdAqiaaH1uRcg@mail.gmail.com>
	<CA+TgmoaQHtGNFczJzSO5sMobUpuikSHphtFPZpdLmjzwdmM1DQ@mail.gmail.com>
	<20240124170846.GA2643050@nathanxps13>
	<CA+TgmoZusu5g3rM1k=UB29Sf53c1OKjm1uFw9uo-sSXBLFZJiQ@mail.gmail.com>
	<20240124180515.GA2709722@nathanxps13>
	<CA+TgmobWwfMpog9Yz=krBT1=sobGzWNxuEiCXg4Hh92fNOMHJw@mail.gmail.com>

On Wed, Jan 24, 2024 at 02:08:08PM -0500, Robert Haas wrote:
> On Wed, Jan 24, 2024 at 1:05 PM Nathan Bossart <nathandbossart@gmail.com> wrote:
>> Otherwise, I think we'll probably need to add some additional logging to
>> figure out what is happening...
> 
> Where, though? I suppose we could:
> 
> 1. Change the server code so that it logs each WAL summary file
> removed at a log level high enough to show up in the test logs.
> 
> 2. Change the TAP test so that it prints out readdir(WAL summary
> directory) at various points in the test.

That seems like a reasonable starting point.  Even if it doesn't help
determine the root cause, it should at least help rule out concurrent
summary removal.

-- 
Nathan Bossart
Amazon Web Services: https://aws.amazon.com





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