private Scan createScanForReadLogTimestampMap(String backupRoot) {
    Scan scan = new Scan();
    scan.setStartStopRowForPrefixScan(rowkey(TABLE_RS_LOG_MAP_PREFIX, backupRoot, NULL));
    scan.addFamily(BackupSystemTable.META_FAMILY);

    return scan;
  }
Creates Scan to load table-> { RS -> ts} map of maps
@return scan operation
hbase-backup/src/main/java/org/apache/hadoop/hbase/backup/impl/BackupSystemTable.java