通过官网配置 运行一些提供的示例 PI ： [hyxy@master hadoop]$ hadoop jar /home/hyxy/soft/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-examples-2.7.3.jar pi 10 5
运行一些提供的示例 词频统计上传集群： 1）本地创建aaa.txt文件 hello world hello hyxy
2)通过hadoop指令上传到伪分模式下 [hyxy@master hadoop]$ hadoop fs -put ~/Desktop/aaa.txt /wordcount.txt
3）查看上传数据，对应webUI 查看 [hyxy@master hadoop]$ hadoop fs -ls /
4)运行案例 将结果输出到outwordcount文件夹中 [hyxy@master hadoop]$ hadoop jar /home/hyxy/soft/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-examples-2.7.3.jar wordcount /wordcount.txt outwordcount
5)查看MR运行结果 [hyxy@master hadoop]$ hadoop fs -ls -R/ [hyxy@master hadoop]$ hadoop fs -ls /outwordcount
6）查看运行结果: [hyxy@master hadoop]$ hadoop fs -cat /outwordcount.txt/part-r-00000 hello 2 hyxy 1 world 1
hdfsWebUI --> http://master:50070 可以去这里查看自己的hdfs操作结果
