tez

参考:

原理: 

https://www.cnblogs.com/rongfengliang/p/6991020.html

https://www.cnblogs.com/hankedang/p/4210598.html

就在作业中set hive.execution.engine=tez;?
将tez下的jar和tez下的lib下的jar包复制到hive的$HIVE_HOME/lib目录下即可, tez引擎少了mp中间落盘的环节

CDH5.9.2 整合TEZ

https://www.jianshu.com/p/b587c2e5d170

https://www.iteye.com/blog/duguyiren3476-2214549