Call From DESKTOP-2UEFCGD/192.168.51.5 to localhost:9000 failed on connection exception: java.net.ConnectException: Connection refused: no further information; For more details see:

遇到这个问题是：

public static void main(String[] args) throws IOException, ClassNotFoundException, InterruptedException {
    Configuration conf = new Configuration();
    Job job = new Job(conf, "OneSort");
    job.setJarByClass(OneSort.class);
    job.setMapperClass(Map.class);
    job.setReducerClass(Reduce.class);
    job.setOutputKeyClass(IntWritable.class);
    job.setOutputValueClass(Text.class);
    job.setInputFormatClass(TextInputFormat.class);
    job.setOutputFormatClass(TextOutputFormat.class);
    Path in = new Path("hdfs://node01:8020/kkb/data/mapreduce3/in/goods_visit1.txt");
    Path out = new Path("hdfs://node01:8020/kkb/data/mapreduce3/out");
    FileInputFormat.addInputPath(job, in);
    FileOutputFormat.setOutputPath(job, out);
    System.exit(job.waitForCompletion(true) ? 0 : 1);
}

Path in = new Path("hdfs://node01:8020/kkb/data/mapreduce3/in/goods_visit1.txt");
    Path out = new Path("hdfs://node01:8020/kkb/data/mapreduce3/out");

主要是：

hdfs://node01:8020/kkb/data/mapreduce3/in/goods_visit1.txt

node01:8020：写的是hdfs的，可以看一下：

 

 

 

 

后面这些是文件的路径：/kkb/data/mapreduce3/in/goods_visit1.txt：