ElasticSearch

CentOS 7下安装部署Elasticsearch7.3.1

ElasticSearch 索引查询使用指南——详细版

ik的es插件地址

ElasticSearch 中文分词器 es-ik，Ansj，hanlp 对比

全文搜索引擎 Elasticsearch 入门教程

ES简单实用DSL查询

安装

下载地址：
https://www.elastic.co/cn/downloads/elasticsearch
es:a-80

groupadd esearch                    创建esearch组
useradd -g esearch els              创建ela用户，并且加入ela组
passwd ela                          为ela用户设定登录密码
vim /etc/sudoers)
    root    ALL=(ALL)  ALL
    ela    ALL=(ALL)  ALL
    
chown es:esearch /home/es/data/

su es
cd /usr/local/Elasticsearch/bin
./elasticsearch7 -d                 后台运行模式
jps                                 查看后台进程
kill -9                             终止后台运行


curl localhost:9200/
查看所有索引
curl localhost:9200/_cat/indices
查看字段类型
curl localhost:9200/site_search/_mapping?pretty
curl localhost:9200/site_search/_search?pretty'-d' {
    "from": 0,
    "size": 30,
    "_soruce": {"excludes": ["content']},
    "query": {
        "filtered": {
            "filter": { "terms": ["_id": []]}
        },
        "sort": {"published": {"order": "desc"}}
    }
}

curl -XPOST localhost:9200/site_search/_search?pretty -d '
{
    "from": 0,
    "size": 8,
    "_source": {"excludes": ["content"]},
    "query": { "match_all": {}},
    "sort": {"published": {"order": "desc"}}
}'

curl -XPOST localhost:9200/site_search/_search?pretty -d '
{
    "from": 0,
    "size": 8,
    "_source": {"excludes": ["content"]},
    "query": {
        "filtered": {
           "filter": {"terms": {"_id": ["393871","393870"]}}
        }
    },
    "sort": {"published": {"order": "desc"}}
}'