Resume conflict-relevant data retention automatically.
This commit resumes automatic retention of conflict-relevant data for a
subscription. Previously, retention would stop if the apply process failed
to advance its xmin (oldest_nonremovable_xid) within the configured
max_retention_duration and user needs to manually re-enable
retain_dead_tuples option. With this change, retention will resume
automatically once the apply worker catches up and begins advancing its
xmin (oldest_nonremovable_xid) within the configured threshold.
Author: Zhijie Hou <houzj.fnst@fujitsu.com>
Reviewed-by: shveta malik <shveta.malik@gmail.com>
Reviewed-by: Amit Kapila <amit.kapila16@gmail.com>
Reviewed-by: Dilip Kumar <dilipbalaut@gmail.com>
Reviewed-by: Masahiko Sawada <sawada.mshk@gmail.com>
Discussion: https://postgr.es/m/OS0PR01MB5716BE80DAEB0EE2A6A5D1F5949D2@OS0PR01MB5716.jpnprd01.prod.outlook.com
Branch
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master
Details
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https://git.postgresql.org/pg/commitdiff/0d48d393d465b6f1abe18b86bd5ac2de0636a40e
Modified Files
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doc/src/sgml/ref/create_subscription.sgml | 9 +-
src/backend/replication/logical/launcher.c | 10 +-
src/backend/replication/logical/worker.c | 200 ++++++++++++++++++++++-------
src/test/subscription/t/035_conflicts.pl | 27 ++++
4 files changed, 196 insertions(+), 50 deletions(-)
