@Override
  protected void processOptions(CommandLine cmd) {
    numRegionServers =
      Integer.parseInt(cmd.getOptionValue(OPT_NUM_RS, String.valueOf(DEFAULT_NUM_RS)));
  }
Loads data into the table using the multi-threaded writer.
hbase-diagnostics/src/test/java/org/apache/hadoop/hbase/util/RestartMetaTest.java