scan 'JOB_INFO', {FILTER => org.apache.hadoop.hbase.filter.PrefixFilter.new(org.apache.hadoop.hbase.util.Bytes.toBytes('21'))}
scan 'JOB_INFO', {FILTER => org.apache.hadoop.hbase.filter.PrefixFilter.new(org.apache.hadoop.hbase.util.Bytes.toBytes('21'))}