From: | Heikki Linnakangas <heikki(dot)linnakangas(at)iki(dot)fi> |
---|---|
To: | pgsql-committers(at)lists(dot)postgresql(dot)org |
Subject: | pgsql: Clamp result of MultiXactMemberFreezeThreshold |
Date: | 2024-06-13 16:04:15 |
Message-ID: | E1sHmvu-001LPh-7M@gemulon.postgresql.org |
Views: | Raw Message | Whole Thread | Download mbox | Resend email |
Thread: | |
Lists: | pgsql-committers |
Clamp result of MultiXactMemberFreezeThreshold
The purpose of the function is to reduce the effective
autovacuum_multixact_freeze_max_age if the multixact members SLRU is
approaching wraparound, to make multixid freezing more aggressive.
The returned value should therefore never be greater than plain
autovacuum_multixact_freeze_max_age.
Reviewed-by: Robert Haas
Discussion: https://www.postgresql.org/message-id/85fb354c-f89f-4d47-b3a2-3cbd461c90a3@iki.fi
Backpatch-through: 12, all supported versions
Branch
------
REL_13_STABLE
Details
-------
https://git.postgresql.org/pg/commitdiff/b91b3f045abeaad4599bdac9ad7d7f55d7ff234c
Modified Files
--------------
src/backend/access/transam/multixact.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
From | Date | Subject | |
---|---|---|---|
Next Message | Tom Lane | 2024-06-13 17:38:13 | pgsql: When replanning a plpgsql "simple expression", check it's still |
Previous Message | Andrew Dunstan | 2024-06-13 12:12:29 | pgsql: Skip some permissions checks on Cygwin |