public static void main(String[] args) throws Exception {
Configuration conf = new Configuration();
Job job = new Job(conf, "macID");
job.setJarByClass(MacFilter.class);
//job.setOutputKeyClass(Text.class);
//job.setOutputValueClass(IntWritable.class);
job.setMapperClass(Map.class);
job.setReducerClass(Reduce.class);
job.setInputFormatClass(KeyValueInputFormat.class);
job.setOutputFormatClass(TextOutputFormat.class);