ElasticSearch单机双实例的配置方法
https://knktc.com/2016/06/10/elasticsearch-multiple-instances/
不要交叉32 GB !
https://www.elastic.co/guide/en/elasticsearch/guide/current/heap-sizing.html compressed_oops
ElasticSearch术语
https://www.cnblogs.com/chenny7/p/4311722.html
ElasticSearch安装中文分词器https://www.cnblogs.com/shaosks/p/7525060.html
