Re: Add a perl function in Cluster.pm to generate WAL

From: Michael Paquier <michael(at)paquier(dot)xyz>
To: Alexander Lakhin <exclusion(at)gmail(dot)com>
Cc: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Euler Taveira <euler(at)eulerto(dot)com>, Bharath Rupireddy <bharath(dot)rupireddyforpostgres(at)gmail(dot)com>, Kyotaro Horiguchi <horikyota(dot)ntt(at)gmail(dot)com>, Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org>, Andrew Dunstan <andrew(at)dunslane(dot)net>, pgsql-hackers(at)lists(dot)postgresql(dot)org
Subject: Re: Add a perl function in Cluster.pm to generate WAL
Date: 2024-01-04 23:48:33
Message-ID: ZZdD0U0_cSZT4ZhA@paquier.xyz
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On Thu, Jan 04, 2024 at 04:00:01PM +0300, Alexander Lakhin wrote:
> Reproduced here.

Did you just make the run slow enough to show the failure with
valgrind?

> As I can see in the failure logs you referenced, the first problem is:
> #   Failed test 'inactiveslot slot invalidation is logged with vacuum on pg_authid'
> #   at t/035_standby_logical_decoding.pl line 224.
> It reminded me of:
> https://www.postgresql.org/message-id/b2a1f7d0-7629-72c0-2da7-e9c4e336b010%40gmail.com
>
> It seems that it's not something new, and maybe that my analysis is still
> valid. If so, VACUUM FREEZE/autovacuum = off should fix the issue.

Not sure about that yet.
--
Michael

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