Hive 调优-存储篇

环境:

Hadoop 3.1.3

Hive:hive-3.1.2

环境准备:

1 hive> set hive.merge.mapfiles=true;
2 hive> set hive.merge.orcfile.stripe.level=true;
3 hive> set hive.merge.size.per.task=268435456;
4 hive> set hive.merge.smallfiles.avgsize=16777216;
5 hive> create table student_tb_orc like student stored as orc;

hive> insert into student_tb_orc
> select * from student;

 

 

 

 

posted @ 2020-12-06 21:43  lenomail  阅读(82)  评论(0编辑  收藏  举报