code: public static void main(String argv[]) {
      StringUtils.startupShutdownMessage(HourGlass.class, argv, LOG);
      try {
        HourGlass hourGlass = new HourGlass(new Configuration());
        hourGlass.run();
      } catch (Throwable e) {
        LOG.fatal(StringUtils.stringifyException(e));
        System.exit(-1);
      }
    }
docs: Start the HourGlass process