1,Spark 基本概念:https://blog.csdn.net/liuxiangke0210/article/details/79687240
2,Spark sql和Spark stream进一步理解:
http://www.sohu.com/a/270444235_494938
https://www.cnblogs.com/qingyunzong/p/8899715.html
3,Spark中Task,Partition,RDD、节点数、Executor数、core数目的关系和Application,Driver,Job,Task,Stage理解
https://blog.csdn.net/u013013024/article/details/72876427
4,单机部署并运行spark任务