We are storing the Site-Article wise Inventory Stock and Sales in Hbase Table. With rowkey is a combination of Site+Article. There will be only one distinct record per Site-Article. However this gives a poor performance while performing Hbase Scans. If my Site=A,Article=100 my currenr rowkey design is A100. My table contains 40 million records. What can be a better rowkey design for faster scans in this usecase ?