Spark资料

宽依赖窄依赖

https://blog.csdn.net/houmou/article/details/52531205

hadoop／spark面试

https://blog.csdn.net/qq1010885678/article/details/46916857

spark基本概念

https://blog.csdn.net/u011317245/article/details/52422703

Stage划分

https://blog.csdn.net/sinat_25306771/article/details/51429984