全文搜索引擎Elasticsearch，这篇文章给讲透了
https://cloud.tencent.com/developer/article/1488535
【ES】ElasticSearch 深入分片
https://www.jianshu.com/p/cc06f9adbe82
ES学习之分片路由
https://blog.csdn.net/weixin_39471249/article/details/80600176
ELK学习笔记-ES-分词
https://blog.51cto.com/u_14486455/2461406
