MB-8903: Open stream to producer *not* consumer

Change-Id: Ie195016f3facf890a16639424f1e5175e5ad5c23
Reviewed-on: http://review.couchbase.org/30886
Reviewed-by: Filipe David Borba Manana <fdmanana@gmail.com>
Tested-by: buildbot <build@couchbase.com>