热温数据架构

https://www.elastic.co/cn/blog/hot-warm-architecture-in-elasticsearch-5-x

Rollover按日期、max_doc滚动索引，控制冷数据分片数量

https://www.elastic.co/cn/blog/managing-time-based-indices-efficiently

高级调优：查找并修复 Elasticsearch 慢查询

https://www.elastic.co/cn/blog/advanced-tuning-finding-and-fixing-slow-elasticsearch-queries