12.3.2打开浏览器新标签页,地址栏中输入:18088,检查Yarn是否正常,如下图所示。
12.4运行PI实例检查集群是否成功 12.4.1执行下面的命令:
[zkpk@master~]$ hadoop jar ~/hadoop-2.7.3/share/hadoop/mapreduce/hadoop-mapreduce-examples-2.7.3.jar pi 10 10
12.4.2会看到如下的执行结果:12.4.3最后输出:Estimated value of Pi is 3.20000000000000000000