Hadoop_04 验证Hadoop安装成功

[root@master ~]# cd hadoop-2.7.7/
[root@master hadoop-2.7.7]# cd etc
[root@master etc]# cd hadoop/
[root@master hadoop]# hadoop jar ~/hadoop-2.7.7/share/hadoop/mapreduce/hadoop-mapreduce-examples-2.7.7.jar pi 10 10

http://master:50070/