On 28 May 2014 23:36, Andres Freund <[email protected]> wrote: > 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.
Good thought. I'll backpatch. -- Simon Riggs 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
