Spark 常用的讀取數據api

Spark讀取數據API spark.read.format("json").load(path) spark.read.format("text").load(path) spark.rea ...

Spark DataFrame常用API

Spark DataFrame常用API package com.imooc.bigdata.chapter04 import org.apache.spark.sql.{DataFram ...

spark-shell和spark-sql

1.啟動spark-shell ./spark-shell --master local[2] --jars /usr/local/jar/mysql-connector-java-5.1.4 ...