spark precompiled installation

1. Download:

　　http://mirrors.tuna.tsinghua.edu.cn/apache/spark/spark-3.0.0-preview/spark-3.0.0-preview-bin-hadoop2.7.tgz

Upload a virtual machine or server

2. Unzip the file

　　tar -xzvf spark-3.0.0-preview-bin-hadoop2.7.tgz

3. Set Environment Variables

　　vi / etc / profile 

　　

 

 

　　source /etc/profile

4. Start spark 

spark-shell local[4]

local [n] n is the number of threads that can be added from time to see the scene plus

 

 

sprk RDD operation