我想我的代码一定有问题，但我找不到。
在我的课程中，我有：

public static class BrowserMapper extends
        Mapper<LongWritable, Text, Text, IntWritable>

和

public static class BrowserReduce extends
        Reducer<Text, IntWritable, IntWritable, Text> {
    private IntWritable result = new IntWritable();

    public void reduce(Text key, Iterable<IntWritable> values,
            Context context) throws IOException, InterruptedException {
        int sum = 0;
        for (IntWritable val : values) {
            sum += val.get();
        }
        result.set(sum);
        context.write(result, key);
    }
}

我的工作如下：

public int run(String[] args) throws Exception {
    Job job = Job.getInstance();

    job.setMapOutputKeyClass(Text.class);
    job.setMapOutputValueClass(IntWritable.class);

    job.setOutputKeyClass(IntWritable.class);
    job.setOutputValueClass(Text.class);

    job.setMapperClass(BrowserMapper.class);
    job.setReducerClass(BrowserReduce.class);

    job.setInputFormatClass(TextInputFormat.class);
    job.setOutputFormatClass(TextOutputFormat.class);

    FileInputFormat.setInputPaths(job, new Path(args[0]));
    FileOutputFormat.setOutputPath(job, new Path(args[1]));

    job.setJarByClass(LogAnalysis.class);

    job.waitForCompletion(true);

    return 0;
}

当我运行这个作业时，得到的结果如下：

175394  IE
1475014 chrome
508390  firefox
23566   opera
421729  other
1266627 safari

但预期结果如下：

1475014 chrome
1266627 safari
508390  firefox
421729  other
175394  IE
23566   opera

你知道吗？非常感谢