From 2cdf131c46e631addfc386f6106e52a1b8cc3a70 Mon Sep 17 00:00:00 2001 From: Alexander Korotkov Date: Wed, 29 Nov 2023 01:41:48 +0200 Subject: Use larger segment file names for pg_notify This avoids the wraparound in async.c and removes the corresponding code complexity. The maximum amount of allocated SLRU pages for NOTIFY / LISTEN queue is now determined by the max_notify_queue_pages GUC. The default value is 1048576. It allows to consume up to 8 GB of disk space which is exactly the limit we had previously. Author: Maxim Orlov, Aleksander Alekseev, Alexander Korotkov, Teodor Sigaev Author: Nikita Glukhov, Pavel Borisov, Yura Sokolov Reviewed-by: Jacob Champion, Heikki Linnakangas, Alexander Korotkov Reviewed-by: Japin Li, Pavel Borisov, Tom Lane, Peter Eisentraut, Andres Freund Reviewed-by: Andrey Borodin, Dilip Kumar, Aleksander Alekseev Discussion: https://postgr.es/m/CACG%3DezZe1NQSCnfHOr78AtAZxJZeCvxrts0ygrxYwe%3DpyyjVWA%40mail.gmail.com Discussion: https://postgr.es/m/CAJ7c6TPDOYBYrnCAeyndkBktO0WG2xSdYduTF0nxq%2BvfkmTF5Q%40mail.gmail.com --- src/backend/utils/misc/postgresql.conf.sample | 3 +++ 1 file changed, 3 insertions(+) (limited to 'src/backend/utils/misc/postgresql.conf.sample') diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample index e48c066a5b1..cf9f283cfee 100644 --- a/src/backend/utils/misc/postgresql.conf.sample +++ b/src/backend/utils/misc/postgresql.conf.sample @@ -166,6 +166,9 @@ #temp_file_limit = -1 # limits per-process temp file space # in kilobytes, or -1 for no limit +#max_notify_queue_pages = 1048576 # limits the number of SLRU pages allocated + # for NOTIFY / LISTEN queue + # - Kernel Resources - #max_files_per_process = 1000 # min 64 -- cgit v1.2.3