配置

xshell配置：

https://blog.csdn.net/qq_27749859/article/details/79006469

hadoop配置：

http://www.powerxing.com/install-hadoop-cluster/

https://www.cnblogs.com/shoufengwei/p/5867375.html

https://www.linuxidc.com/Linux/2013-07/87423p2.htm