| 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-001LPd-6S@gemulon.postgresql.org |
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| 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_15_STABLE
Details
-------
https://git.postgresql.org/pg/commitdiff/7768ac1c17f0ec7883825e8768ab480caa7842ec
Modified Files
--------------
src/backend/access/transam/multixact.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
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