数据分析

BI基本架构和ETL理解

https://blog.csdn.net/duqiangatom/article/details/8308985

ETL

https://blog.csdn.net/zhongguomao/article/details/53769919

大并发数据优化

https://www.cnblogs.com/chuncn/archive/2009/04/21/1440233.html