Remove promote_trigger_file. Previously, an idle startup (recovery) process would wake up every 5 seconds to have a chance to poll for promote_trigger_file, even if that GUC was not configured. That promotion triggering mechanism was effectively superseded by pg_ctl promote and pg_promote() a long time ago. There probably aren't many users left and it's very easy to change to the modern mechanisms, so we agreed to remove the feature.
This is part of a campaign to reduce wakeups on idle systems. Author: Simon Riggs <[email protected]> Reviewed-by: Bharath Rupireddy <[email protected]> Reviewed-by: Robert Haas <[email protected]> Reviewed-by: Thomas Munro <[email protected]> Reviewed-by: Tom Lane <[email protected]> Reviewed-by: Ian Lawrence Barwick <[email protected]> Discussion: https://postgr.es/m/CANbhV-FsjnzVOQGBpQ589%3DnWuL1Ex0Ykn74Nh1hEjp2usZSR5g%40mail.gmail.com Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/cd4329d9393f84dce34f0bd2dd936adc8ffaa213 Modified Files -------------- .../sgml/appendix-obsolete-recovery-config.sgml | 13 ++--- doc/src/sgml/config.sgml | 18 ------- doc/src/sgml/high-availability.sgml | 22 +++------ src/backend/access/transam/xlogrecovery.c | 57 ++++++---------------- src/backend/utils/misc/guc_tables.c | 10 ---- src/backend/utils/misc/postgresql.conf.sample | 1 - src/include/access/xlogrecovery.h | 1 - 7 files changed, 29 insertions(+), 93 deletions(-)
