Re: Assertion failure when autovacuum drops orphan temp indexes.

From: Michael Paquier <michael(at)paquier(dot)xyz>
To: Masahiko Sawada <sawada(dot)mshk(at)gmail(dot)com>
Cc: Stepan Neretin <sndcppg(at)gmail(dot)com>, Nathan Bossart <nathandbossart(at)gmail(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Assertion failure when autovacuum drops orphan temp indexes.
Date: 2024-10-28 00:50:36
Message-ID: Zx7f3GAAAbZBIyGu@paquier.xyz
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On Sun, Oct 27, 2024 at 05:19:45PM -0700, Masahiko Sawada wrote:
> my $psql1 = $node->interactive_psql('postgres');
> $psql1->query("create temp table test (a int primary key);");
> sleep(3);
>
> $node->stop('immediate');
> $node->start();
> $node->safe_psql('postgres', 'select 1');
>
> sleep(5);
> $node->safe_psql('postgres', 'select 1');
>
> ok(1);
> done_testing();

The assertion failure happens in an autovacuum worker. So if you are
looking for a test that can be integrated in the tree, you could get
some inspiration from 006_signal_autovacuum.pl and rely on an
injection point wait with the existing autovacuum-worker-start. My
2c, as it looks easy enough to avoid the hardcoded waits.
--
Michael

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