Insufficient privilege when initiating backup

[Cody Caughlan <toolbag@xxxxxxxxx>]

I am attempting to run

select pg_start_backup('backup-2011-11-09');

But it is just hanging, I've given it 3 minutes. When I view pg_stat_activity I see "<insufficient privilege>" in the current_query column.

I've quadruple checked that the user (postgres) has the Replication role:

batch_api_production=> \du+

                                     List of roles

 Role name  |                   Attributes                   | Member of | Description 

------------+------------------------------------------------+-----------+-------------

 batch      | Create DB                                      | {}        | 

 postgres   | Superuser, Create role, Create DB, Replication | {}        | 

 replicator | Replication                                   +| {}        | 

            | 2 connections                                  |           | 

Any help would be appreciated.

/Cody