On 2014-09-25 11:13:50 -0400, Robert Haas wrote:
> On Wed, Sep 24, 2014 at 4:36 PM, Simon Riggs <simon@2ndquadrant.com> wrote:
> >> To me, being able to say "pg_ctl promote_right_now -m yes_i_mean_it"
> >> seems like a friendlier interface than making somebody shut down the
> >> server, run pg_resetxlog, and start it up again.
> >
> > It makes sense to go from paused --> promoted.
>
> Well, we could certainly require that people call
> pg_xlog_replay_pause() before they call pg_promote_now(). I don't
> think I like that better, but it beats not having pg_promote_now().
FWIW I think it's a mistake to only allow this on a hot standby. This
should be doable using pg_ctl alone. a) works with wal_level=archive, b)
sometimes hot_standby=off is a good bit more efficient c) sometimes you
don't want to allow connections.
Greetings,
Andres Freund
-- Andres Freund http://www.2ndQuadrant.com/PostgreSQL Development, 24x7 Support, Training &
Services