* Use PostgreSQL's fast shutdown mode. In the default

smart shutdown mode, Postgres waits until all 
  active connections have closed, which can take an
  unbounded amount of time.

svn path=/nixos/trunk/; revision=33959

modules/services/databases/postgresql.nix

@@ -188,8 +188,12 @@ in
 
         extraConfig =
           ''
+            # Shut down Postgres using SIGINT ("Fast Shutdown mode").  See 
+            # http://www.postgresql.org/docs/current/static/server-shutdown.html
+            kill signal INT
+
             # Give Postgres a decent amount of time to clean up after
-            # receiving Upstart's SIGTERM.
+            # receiving Upstart's SIGINT.
             kill timeout 60
           '';
       };