@Override
        public void run() {
          LOG.info(toStartupShutdownString("SHUTDOWN_MSG: ", new String[]{
            "Shutting down " + classname + " at " + hostname}));
        }
Print a log message for starting up and shutting down
@param clazz the class of the server
@param args arguments
@param LOG the target log object
common/src/java/org/apache/hive/common/util/HiveStringUtils.java