elasticsearch相关问题

 一、服务器测试是否es连接成功：

curl http://username:password@ip:port{"name" : "node-xxx","cluster_name" : "es","cluster_uuid" : "xxxxxxxx","version" : {"number" : "6.8.1","build_flavor" : "default","build_type" : "tar","build_hash" : "xxx","build_date" : "xxxxxx","build_snapshot" : false,"lucene_version" : "7.7.0","minimum_wire_compatibility_version" : "5.6.0","minimum_index_compatibility_version" : "5.0.0"},"tagline" : "You Know, for Search"
}


二、 查询语句：

聚合查询：es中叫桶聚合

转载：ES基本的聚合查询 - 简书

讲的非常详细并举例说明。

精确查询："track_total_hits":true

转载：ES命令： “track_total_hits“:true_我的博客-CSDN博客_track_total_hits

返回结果的含义：

转载：理解Elasticsearch返回结果中命中数total值的具体含义_zhaojianting的博客-CSDN博客_es hits total