I found something else on the web.
update pg_database set datallowconn = false where datname = 'foo';
update pg_database set datallowconn = true where datname = 'foo';
Seems to have worked OK.
Thanks for the pg_hab.conf suggestion. I'll add that to my notes.
-----Original Message-----
From: Scott Marlowe [mailto:scott.marlowe@gmail.com]
Sent: Thursday, January 26, 2012 5:39 PM
To: Gauthier, Dave
Cc: pgsql-general@postgresql.org
Subject: Re: [GENERAL] Preventing access temporarily.
On Thu, Jan 26, 2012 at 3:05 PM, Gauthier, Dave <dave.gauthier@intel.com> wrote:
> PG V9.0.1 on Linux
>
>
>
> I want to temporarily prevent users from connecting to a DB, let the
> existing connections finish, <do some work>, re-enable connections.
>
> What's the best way to do that?
Edit pg_hba.conf to reject all connections and reload. current
connections will stay connected, new ones will be refused. use
pg_stat_activity to monitor connections til they're all gone / idle.