Horton

Use a WaitLatch for vacuum/autovacuum sleeping

Stephen Frost <sfrost@snowman.net>

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Commit: 4753ef37e0eda4ba0af614022d18fcbc5a946cc9
Author: Stephen Frost <sfrost@snowman.net>
Date: 2021-03-30T16:52:56Z
Releases: 14.0 
Use a WaitLatch for vacuum/autovacuum sleeping

Instead of using pg_usleep() in vacuum_delay_point(), use a WaitLatch.
This has the advantage that we will realize if the postmaster has been
killed since the last time we decided to sleep while vacuuming.

Reviewed-by: Thomas Munro
Discussion: https://postgr.es/m/CAFh8B=kcdk8k-Y21RfXPu5dX=bgPqJ8TC3p_qxR_ygdBS=JN5w@mail.gmail.com

Files

PathChange+/−
src/backend/commands/vacuum.c modified +5 −3

Discussion