缓存和数据库一致性问题
JWT authentication.
The possible challenges and solutions of the e-commerce system with high concurrency
Transaction Propagation
Use Redis to solve the over-sell problem
MySQL的EXPLAIN指令参考.
Use BitMap to hold/search billions of data in a limited memory.
LinkedHashMap删除第一个元素
B+树的插入和删除流程介绍
Apache Hadoop reference