From 7936fc4ad60e40b38629f372bff397bc42a0a7f5 Mon Sep 17 00:00:00 2001 From: Jeremy Schneider Date: Wed, 4 Feb 2026 21:08:32 -0800 Subject: [PATCH] Change default client_connection_check_interval to 2000ms The default value of client_connection_check_interval is changed from 0 (disabled) to 2000ms (2 seconds). This enables periodic checking for client disconnection during long-running queries by default, which can help detect and clean up queries from disconnected clients more promptly. A value of 0 continues to disable connection checking for users who prefer the previous behavior. --- src/backend/utils/misc/guc_parameters.dat | 2 +- src/backend/utils/misc/postgresql.conf.sample | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/src/backend/utils/misc/guc_parameters.dat b/src/backend/utils/misc/guc_parameters.dat index f0260e6e412..91c0d740ce5 100644 --- a/src/backend/utils/misc/guc_parameters.dat +++ b/src/backend/utils/misc/guc_parameters.dat @@ -403,7 +403,7 @@ long_desc => '0 disables connection checks.', flags => 'GUC_UNIT_MS', variable => 'client_connection_check_interval', - boot_val => '0', + boot_val => '2000', min => '0', max => 'INT_MAX', check_hook => 'check_client_connection_check_interval', diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample index c4f92fcdac8..8dd89d6da4e 100644 --- a/src/backend/utils/misc/postgresql.conf.sample +++ b/src/backend/utils/misc/postgresql.conf.sample @@ -87,7 +87,7 @@ #tcp_user_timeout = 0 # TCP_USER_TIMEOUT, in milliseconds; # 0 selects the system default -#client_connection_check_interval = 0 # time between checks for client +#client_connection_check_interval = 2000 # time between checks for client # disconnection while running queries; # 0 for never -- 2.43.0