queue_classic is a postgresql job queue that can use listen/notify. http://www.postgresql.org/docs/9.1/static/sql-notify.html http://www.postgresql.org/docs/9.1

queue_classic is a postgresql job queue that can use listen/notify. http://www.postgresql.org/docs/9.1/static/sql-notify.html http://www.postgresql.org/docs/9.1/static/sql-notify.html Although queue_classic doesn't use listen/notify by default, and I'm not sure why. I think it should, it seems to perform better.