1.Phoenix二级索引机制
http://www.tuicool.com/articles/FfMz6bq
http://itindex.net/detail/50681-phoenix-sql-hbase/
Phoenix SQL Grammer
http://forcedotcom.github.io/phoenix/index.html
2.Hive
Hive语法
http://www.cnblogs.com/linjiqin/archive/2013/03/05/2944510.html
Hive over HBase和Hive over HDFS性能比较分析（目前见过最完善的）
http://superlxw1234.iteye.com/blog/2008274
Hive语法的执行引擎详解
Hive SQL优化之 Count Distinct
http://bigdata-blog.net/2013/11/08/hive-sql优化之-count-distinct/
HiveSQL解析过程详解
http://www.xuebuyuan.com/2210261.html
hive原理-sql语句转化为MR过程
http://www.kaishigo.com/archives/1043.html
4.HBase所有二级索引方案比较（详细比较）
http://www.zuiyuemuai.com/wordpress/?p=1712
二级索引原理
http://blog.csdn.net/bluishglc/article/details/31799255
Solr与Phoenix比较
http://blog.csdn.net/u013494310/article/details/45399181
Phoenix建索引测试过程
http://blog.csdn.net/u011491148/article/details/45749807
华为二级索引细节分析
http://ju.outofmemory.cn/entry/50610
5.IBM Ambari进阶
http://www.ibm.com/developerworks/cn/opensource/os-cn-bigdata-ambari2/index.html