public void writeRegionServerLogTimestamp(Set<TableName> tables, Map<String, Long> newTimestamps)
    throws IOException {
    systemTable.writeRegionServerLogTimestamp(tables, newTimestamps, backupInfo.getBackupRootDir());
  }
Write the current timestamps for each regionserver to backup system table after a successful
full or incremental backup. Each table may have a different set of log timestamps. The saved
timestamp is of the last log file that was backed up already.
@param tables tables
@throws IOException exception
hbase-backup/src/main/java/org/apache/hadoop/hbase/backup/impl/BackupManager.java