ES 基本操作

Posted 2022-12-03 zeenzhou

0.查看集群是否健康
GET /_cluster/health

1.查询所有索引
GET /_cat/indices?v

 

2.查询单个索引的映射
GET /index_trans_detail/_mapping

3.删除index
DELETE /index_trans_detail,index_two

4. 添加字段映射
PUT /index_trans_detail/_mapping/type_trans_detail

"properties":
"tags":
"type": "text"

5. 索引的别名
5.1 创建索引的别名
PUT /index_trans_detail/_alias/index_trans_detail_alias

5.2 查询索引的别名
GET /index_trans_detail/_alias/*

5.3 查询别名指向哪一个索引
GET /*/_alias/index_trans_detail_alias

5.4 删除别名
DELETE /index_trans_detail/_alias/index_trans_detail_alias

6. 添加一个索引（通过mapping）
PUT /people

  "settings":
    "number_of_shards": 3,
    "number_of_replicas": 1
  ,
  "mappings":
    "man":
      "dynamic": "strict",
      "properties":
        "name":
          "type": "text"
        ,
        "age":
          "type": "integer"
        ,
        "birthday":
          "type": "date",
          "format": "yyyy-MM-dd HH:mm:ss||yyyy-MM-dd||epoch_millis"
        ,
        "address":
          "dynamic": "true",
          "type": "object"
       
     
   
 

"dynamic": "strict"  表示如果遇到陌生field会报错
"dynamic": "true"   表示如果遇到陌生字段，就进行dynamic mapping
"dynamic": "false"   表示如果遇到陌生字段，就忽略

 

7.修改字段可以排序
PUT index_trans_detail/_mapping/activity_dictionary

"properties":
"type_code":
"type": "text",
"fielddata": true

7.1 添加字段
PUT /index_trans_detail/_mapping/type_trans_detail

"properties":
"tags":
"type": "text"

 

通过别名更换索引
==========================================================
8.创建别名
POST _aliases

"actions": [

"add":
"index": "old_index",
"alias": "old_index_alias"


]

9.将老的索引中的数据复制到新的索引中：
POST _reindex

"source":
"index": "old_index"（老的索引名）
,
"dest":
"index": "new_index"（新的索引名）

10,创建映射
POST _aliases

"actions": [

"remove":
"index": "old_index",
"alias": "old_index_alias"
,

"add":
"index": "new_index",
"alias": "old_index_alias"


]

11.删除旧索引
DELETE old_index