Re: [HACKERS] WAL logging problem in 9.4.3?

From: Bruce Momjian <bruce(at)momjian(dot)us>
To: Noah Misch <noah(at)leadboat(dot)com>
Cc: Kyotaro Horiguchi <horikyota(dot)ntt(at)gmail(dot)com>, robertmhaas(at)gmail(dot)com, pgsql-hackers(at)postgresql(dot)org, 9erthalion6(at)gmail(dot)com, andrew(dot)dunstan(at)2ndquadrant(dot)com, hlinnaka(at)iki(dot)fi, michael(at)paquier(dot)xyz
Subject: Re: [HACKERS] WAL logging problem in 9.4.3?
Date: 2020-03-21 19:04:50
Message-ID: 20200321190450.GL10066@momjian.us
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Wow, this thread started in 2015. :-O

Date: Fri, 3 Jul 2015 00:05:24 +0200

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On Sat, Mar 21, 2020 at 12:01:27PM -0700, Noah Misch wrote:
> On Sun, Mar 15, 2020 at 08:46:47PM -0700, Noah Misch wrote:
> > On Wed, Mar 04, 2020 at 04:29:19PM +0900, Kyotaro Horiguchi wrote:
> > > The attached is back-patches from 9.5 through master.
> >
> > Thanks. I've made some edits. I'll plan to push the attached patches on
> > Friday or Saturday.
>
> Pushed, after adding a missing "break" to gist_identify() and tweaking two
> more comments. However, a diverse minority of buildfarm members are failing
> like this, in most branches:
>
> Mar 21 13:16:37 # Failed test 'wal_level = minimal, SET TABLESPACE, hint bit'
> Mar 21 13:16:37 # at t/018_wal_optimize.pl line 231.
> Mar 21 13:16:37 # got: '1'
> Mar 21 13:16:37 # expected: '2'
> Mar 21 13:16:46 # Looks like you failed 1 test of 34.
> Mar 21 13:16:46 [13:16:46] t/018_wal_optimize.pl ................
> -- https://buildfarm.postgresql.org/cgi-bin/show_log.pl?nm=crake&dt=2020-03-21%2016%3A52%3A05
>
> Since I run two of the failing animals, I expect to reproduce this soon.
>
> fairywren failed differently on 9.5; I have not yet studied it:
> https://buildfarm.postgresql.org/cgi-bin/show_log.pl?nm=fairywren&dt=2020-03-21%2018%3A01%3A10
>
> > > It lacks a part of TAP infrastructure nowadays we have, but I
> > > want to have the test (and it actually found a bug I made during this
> > > work). So I added a patch to back-patch TestLib.pm, PostgresNode.pm
> > > and RecursiveCopy.pm along with 018_wal_optimize.pl.
> > > (0004-Add-TAP-test-for-WAL-skipping-feature.patch)
> >
> > That is a good idea. Rather than make it specific to this test, I would like
> > to back-patch all applicable test files from 9.6 src/test/recovery. I'll plan
> > to push that one part on Thursday.
>
> That push did not cause failures.
>
>

--
Bruce Momjian <bruce(at)momjian(dot)us> https://momjian.us
EnterpriseDB https://enterprisedb.com

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