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| author | Alexander Korotkov <akorotkov@postgresql.org> | 2023-11-29 01:41:48 +0200 |
|---|---|---|
| committer | Alexander Korotkov <akorotkov@postgresql.org> | 2023-11-29 01:41:48 +0200 |
| commit | 2cdf131c46e631addfc386f6106e52a1b8cc3a70 (patch) | |
| tree | 5faf24c559be725f691b135118f20988f71c6bc1 /src/include/commands/async.h | |
| parent | 4ed8f0913bfdb5f3551de3c27fc2c2e880abc5a2 (diff) | |
| download | postgresql-2cdf131c46e631addfc386f6106e52a1b8cc3a70.tar.gz postgresql-2cdf131c46e631addfc386f6106e52a1b8cc3a70.zip | |
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
Diffstat (limited to 'src/include/commands/async.h')
| -rw-r--r-- | src/include/commands/async.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/include/commands/async.h b/src/include/commands/async.h index 02da6ba7e11..a44472b3526 100644 --- a/src/include/commands/async.h +++ b/src/include/commands/async.h @@ -21,6 +21,7 @@ #define NUM_NOTIFY_BUFFERS 8 extern PGDLLIMPORT bool Trace_notify; +extern PGDLLIMPORT int max_notify_queue_pages; extern PGDLLIMPORT volatile sig_atomic_t notifyInterruptPending; extern Size AsyncShmemSize(void); |