阿狗工具
es 7.6 集群节点配置文件
https://blog.csdn.net/ctypyb2002/article/details/106206562/
es源码笔记-7.x 选主流程
https://www.jianshu.com/p/d3ad414ed4f7
elasticsearch的master选举
https://blog.csdn.net/penriver/article/details/118940313
Important Elasticsearch configuration
https://www.elastic.co/guide/en/elasticsearch/reference/7.3/important-settings.html
Leader Election, Why Should I Care?
https://www.elastic.co/cn/blog/found-leader-election-in-general#the-zen-way
ElasticSearch 7.x之前选主流程
https://cloud.tencent.com/developer/article/1826421
ElasticSearch 7.x之后选主流程
https://cloud.tencent.com/developer/article/1826426
Discovery and cluster formation setting
https://www.elastic.co/guide/en/elasticsearch/reference/current/modules-discovery-settings.html#master-election-settings
Elasticsearch分布式一致性原理剖析(一)-节点篇
https://developer.aliyun.com/article/797303
Elasticsearch分布式一致性原理剖析(二)-Meta篇
https://developer.aliyun.com/article/797307
Elasticsearch分布式一致性原理剖析(三)-Data篇
https://zhuanlan.zhihu.com/p/35285514
ZenDiscovery是ES自己实现的一套用于节点发现和选主等功能的模块，没有依赖Zookeeper等工具
https://www.elastic.co/guide/en/elasticsearch/reference/current/modules-discovery-zen.html
