ElasticSearch

ElasticSearch 系列精品文章: https://zq99299.github.io/note-book/elasticsearch-core/

云原生

Java 后端

冰河: https://binghe001.github.io/md/other/guide-to-reading.html#sa%E5%AE%9E%E6%88%98
pdai: https://pdai.tech/md/resource/tools.html

java core: https://dunwu.github.io/javacore/