From: Alexander Korotkov <akorotkov@postgresql.org>
To: pgsql-committers@lists.postgresql.org
Subject: pgsql: Improve runtime and output of tests for replication slots checkp
Date: Thu, 19 Jun 2025 23:31:07 +0000
Message-ID: <E1uSOip-002TUa-0p@gemulon.postgresql.org> (raw)
Improve runtime and output of tests for replication slots checkpointing.
The TAP tests that verify logical and physical replication slot behavior
during checkpoints (046_checkpoint_logical_slot.pl and
047_checkpoint_physical_slot.pl) inserted two batches of 2 million rows each,
generating approximately 520 MB of WAL. On slow machines, or when compiled
with '-DRELCACHE_FORCE_RELEASE -DCATCACHE_FORCE_RELEASE', this caused the
tests to run for 8-9 minutes and occasionally time out, as seen on the
buildfarm animal prion.
This commit modifies the mentioned tests to utilize the $node->advance_wal()
function, thereby reducing runtime. Once we do not use the generated data,
the proposed function is a good alternative, which cuts the total wall-clock
run time.
While here, remove superfluous '\n' characters from several note() calls;
these appeared literally in the build-farm logs and looked odd. Also, remove
excessive 'shared_preload_libraries' GUC from the config and add a check for
'injection_points' extension availability.
Reported-by: Alexander Lakhin <exclusion@gmail.com>
Reported-by: Tom Lane <tgl@sss.pgh.pa.us>
Author: Alexander Korotkov <aekorotkov@gmail.com>
Author: Vitaly Davydov <v.davydov@postgrespro.ru>
Reviewed-by: Hayato Kuroda <kuroda.hayato@fujitsu.com>
Discussion: https://postgr.es/m/fbc5d94e-6fbd-4a64-85d4-c9e284a58eb2%40gmail.com
Backpatch-through: 17
Branch
------
REL_17_STABLE
Details
-------
https://git.postgresql.org/pg/commitdiff/5ed50f9386f04d9b8a88af8902b06cb747db7b54
Modified Files
--------------
src/test/recovery/t/046_checkpoint_logical_slot.pl | 34 +++++++++++-----------
.../recovery/t/047_checkpoint_physical_slot.pl | 26 +++++++++--------
2 files changed, 31 insertions(+), 29 deletions(-)
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To: pgsql-committers@postgresql.org
Cc: akorotkov@postgresql.org, pgsql-committers@lists.postgresql.org
Subject: Re: pgsql: Improve runtime and output of tests for replication slots checkp
In-Reply-To: <E1uSOip-002TUa-0p@gemulon.postgresql.org>
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