Hi, On 2013-02-04 10:35:31 +0000, Simon Riggs wrote: > Reset master xmin when hot_standby_feedback disabled. > If walsender has xmin of standby then ensure we > reset the value to 0 when we change from hot_standby_feedback=on > to hot_standby_feedback=off.
Unless somebody protests I'd like to backpatch this change to 9.2 and 9.1. This imo is a bugfix, not a new feature. What currently happens < 9.3 when hot_standby_feedback is disabled after being enabled is that the walsender's xmin horizon doesn't increase until disconnected. That's pretty hard to diagnose and can cause severe problems. Greetings, Andres Freund -- Andres Freund http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Training & Services -- Sent via pgsql-committers mailing list ([email protected]) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-committers
