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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Peter Geoghegan <pg@bowt.ie>
Cc: Andres Freund <andres@anarazel.de>
Cc: Noah Misch <noah@leadboat.com>
Cc: David Rowley <dgrowleyml@gmail.com>
Cc: PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>
Subject: Re: Intermittent buildfarm failures on wrasse
Date: Fri, 15 Apr 2022 13:15:49 -0400
Message-ID: <1653799.1650042949@sss.pgh.pa.us> (raw)
In-Reply-To: <CAH2-WzmPesOe=pAHnPfiBhYUjz=+yxDEawLpBBkdL-+w=E3bJQ@mail.gmail.com>
References: <CAH2-WzngTjUk_65ESmrMf40WTqasrmWG0gpwnvcN+mXsoXT7qQ@mail.gmail.com>
	<CAH2-WznXXkkfE_y9ieaHkEQj31HeMAqJBtJPmDY+EpyVg1QywQ@mail.gmail.com>
	<1570894.1649986347@sss.pgh.pa.us>
	<20220415015249.kfsqxujrf2bn2wz6@alap3.anarazel.de>
	<20220415024515.GA862547@rfd.leadboat.com>
	<20220415051205.6abhlilh6fnjgohr@alap3.anarazel.de>
	<20220415052125.GD862547@rfd.leadboat.com>
	<1637671.1650032132@sss.pgh.pa.us>
	<1643035.1650035653@sss.pgh.pa.us>
	<CAH2-Wzm-rZnt5fpgsaAngCDj+Gy6O4_Vxp9msQ_oD6UOLcqPpQ@mail.gmail.com>
	<20220415170542.hkwqvyshhg2bjfcd@alap3.anarazel.de>
	<CAH2-WzmPesOe=pAHnPfiBhYUjz=+yxDEawLpBBkdL-+w=E3bJQ@mail.gmail.com>

Peter Geoghegan <pg@bowt.ie> writes:
> On Fri, Apr 15, 2022 at 10:05 AM Andres Freund <andres@anarazel.de> wrote:
>> The other shows
>> the age of OldestXmin at the end of the vacuum. Which is influenced by
>> what's currently running.

> As well as the age of OldestXmin at the start of VACUUM.

Is it worth capturing and logging both of those numbers?  Why is
the age at the end more interesting than the age at the start?

			regards, tom lane





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