CBLT-254:  some more DEBUG output

Change-Id: I4f24181b7b81d78d943d9899e5761e3ee6ec68a9
Reviewed-on: http://review.couchbase.org/35537
Reviewed-by: Philip Labee <philip@couchbase.com>
Tested-by: Philip Labee <philip@couchbase.com>