From e435946a545d2312d71987517936a6f61db23deb Mon Sep 17 00:00:00 2001 From: Potapov Alexander Date: Tue, 25 Nov 2025 07:36:29 +0300 Subject: [PATCH] Improve the test src/test/postmaster/t/003_start_stop.pl Calculate the number of iterations on base of max_connections and max_wal_senders to be in sync with backend pool size: 2 * (max_connections + max_wal_senders) --- src/test/postmaster/t/003_start_stop.pl | 15 +++++++++++---- 1 file changed, 11 insertions(+), 4 deletions(-) diff --git a/src/test/postmaster/t/003_start_stop.pl b/src/test/postmaster/t/003_start_stop.pl index 58e7ba6cc42..92ba96a4342 100644 --- a/src/test/postmaster/t/003_start_stop.pl +++ b/src/test/postmaster/t/003_start_stop.pl @@ -48,10 +48,17 @@ if (!$node->raw_connect_works()) my @raw_connections = (); -# Open a lot of TCP (or Unix domain socket) connections to use up all -# the connection slots. Beyond a certain number (roughly 2x -# max_connections), they will be "dead-end backends". -for (my $i = 0; $i <= 20; $i++) +my $max_connections = $node->safe_psql( + 'postgres', qq{select setting::int max_conn from pg_settings + where name=\$\$max_connections\$\$}); +my $max_wal_senders = $node->safe_psql( + 'postgres', qq{select setting::int max_conn from pg_settings + where name=\$\$max_wal_senders\$\$}); +my $backend_pool_size = 2 * ($max_connections + $max_wal_senders); + +# Open as much as possible TCP (or Unix domain socket) connections to use up all +# the connection slots. Beyond the backend pool, they will be "dead-end backends". +for (my $i = 0; $i < $backend_pool_size; $i++) { my $sock = $node->raw_connect(); -- 2.40.1