Nginx+Keepalived高可用集群 http://blog.51cto.com/superpcm/2095395
ReentrantLock实现原理深入探究
MapReduce程序开发中的FileInputFormat与TextInputFormat
https://blog.youkuaiyun.com/a2011480169/article/details/51051815
Data 注解引出的 lombok 小辣椒
https://www.cnblogs.com/daimajun/p/7136078.html
JVM调优—常用JVM配置参数
https://www.cnblogs.com/cheyunhua/p/8144556.html