@Override
  public boolean deleteBackupSet(String name) throws IOException {
    try (final BackupSystemTable table = new BackupSystemTable(conn)) {
      if (table.describeBackupSet(name) == null) {
        return false;
      }
      table.deleteBackupSet(name);
      return true;
    }
  }
Clean up the data at target directory
@throws IOException if cleaning up the backup directory fails
hbase-backup/src/main/java/org/apache/hadoop/hbase/backup/impl/BackupAdminImpl.java