亚马孙EMR学习网站

https://docs.aws.amazon.com/zh_cn/emr/latest/ManagementGuide/emr-what-is-emr.html

https://docs.aws.amazon.com/zh_cn/emr/latest/ReleaseGuide/emr-release-3x.html

https://blog.csdn.net/Agony__X/article/details/78707927