https://www.cnblogs.com/JetpropelledSnake/p/9887879.html
elasticsearch的Doc Values 和 Fielddata
https://blog.csdn.net/thomas0yang/article/details/64905926
Elasticsearch分布式一致性原理剖析(二)-Meta篇
https://zhuanlan.zhihu.com/p/35283785
Elasticsearch: 权威指南
https://www.elastic.co/guide/cn/elasticsearch/guide/current/index.html
Lucene 查询原理
https://zhuanlan.zhihu.com/p/35814539
时间序列数据库的秘密 (2)——索引
https://www.infoq.cn/article/database-timestamp-02/
时间序列数据库的秘密(3)——加载和分布式计算
https://www.infoq.cn/article/database-timestamp-03
https://www.elastic.co/cn/blog/frame-of-reference-and-roaring-bitmaps
Realtime Search with Lucene
http://2010.berlinbuzzwords.de/sites/2010.berlinbuzzwords.de/files/busch_bbuzz2010.pdf
https://www.elastic.co/guide/en/elasticsearch/guide/current/_finding_exact_values.html
https://www.elastic.co/blog/frame-of-reference-and-roaring-bitmaps
https://blog.madewithlove.be/post/basic-understanding-of-text-search/
https://qbox.io/blog/introduction-to-elasticsearch-analyzers
http://www.elasticsearchtutorial.com/basic-elasticsearch-concepts.html
http://2010.berlinbuzzwords.de/sites/2010.berlinbuzzwords.de/files/busch_bbuzz2010.pdf
https://www.elastic.co/blog/found-elasticsearch-from-the-bottom-up
http://blog.mikemccandless.com/2011/02/visualizing-lucenes-segment-merges.html
http://www.cnblogs.com/richaaaard/p/5254988.html
https://www.compose.com/articles/how-scoring-works-in-elasticsearch/
https://www.elastic.co/guide/cn/elasticsearch/guide/current/controlling-relevance.html