切换到控制台 http://your_ip:5601/app/dev_tools#/console

1. 查看所有

GET _search
{
  "query": {
    "match_all": {}
  }
}

结果

#! this request accesses system indices: [.apm-agent-configuration, .apm-custom-link, .async-search, .kibana_7.12.0_001, .kibana_task_manager_7.12.0_001, .tasks], but in a future major version, direct access to system indices will be prevented by default
{
  "took" : 3,
  "timed_out" : false,
  "_shards" : {
    "total" : 38,
    "successful" : 38,
    "skipped" : 0,
    "failed" : 0
  },
  "hits" : {
    "total" : {
      "value" : 10000,
      "relation" : "gte"
    },
    "max_score" : 1.0,
    "hits" : [
      {
        "_index" : ".async-search",
        "_type" : "_doc",
        "_id" : "Fgn8lVX1RX-T07u9-YDqMg",
        "_score" : 1.0,
        "_source" : {
          "result" : "48myAwFIRmtabmJqaHNWbGd4VWxndFZEQTNkVGt0V1VSeFRXY2VXVEJQYmpkRmNtNVJlbWxuZVRObGJtVnNWbEJMZHpveE1qUTRORFUyAAEB9AUAf8AAAAAAAAABAQZsdGVybXMkNmI4OTM0NGItZTc5NC00NDBiLWEwMTgtM2VlZDk0NzQ0ZDEy//8CAQT/AgEEBQEABGJvb2wRAAAB9AUAAAAAAAAAAAAAAAIAAQEBAAAAAAAAAAAAAAAAAXqpYWJzAAABes1t5nM=",
          "headers" : { },
          "expiration_time" : 1626944169587,
          "response_headers" : { }
        }
      },
......

2. 创建索引

指定分片数量和副分片数量来创建索引

PUT /test_index
{
  "settings":{
    "index":{
      "number_of_shards" : "3",
      "number_of_replicas" : "0"
    }
  }
}

结果：

{
  "acknowledged" : true,
  "shards_acknowledged" : true,
  "index" : "test_index"
}

直接创建索引

PUT /test_index1

结果：

{
  "acknowledged" : true,
  "shards_acknowledged" : true,
  "index" : "test_index1"
}

3. 查询索引

GET /test_index

结果：

{
  "test_index" : {
    "aliases" : { },
    "mappings" : { },
    "settings" : {
      "index" : {
        "routing" : {
          "allocation" : {
            "include" : {
              "_tier_preference" : "data_content"
            }
          }
        },
        "number_of_shards" : "3",
        "provided_name" : "test_index",
        "creation_date" : "1626782384627",
        "number_of_replicas" : "1",
        "uuid" : "25Utmz-rQNOmAMjv3GxcsQ",
        "version" : {
          "created" : "7120099"
        }
      }
    }
  }
}

4. 修改索引副分片

PUT /test_index1/_settings
{
    "number_of_replicas": 1
}

结果：

{
  "acknowledged" : true
}

再次查询索引 GET /test_index，结果为：

{
  "test_index" : {
    "aliases" : { },
    "mappings" : { },
    "settings" : {
      "index" : {
        "routing" : {
          "allocation" : {
            "include" : {
              "_tier_preference" : "data_content"
            }
          }
        },
        "number_of_shards" : "3",
        "provided_name" : "test_index",
        "creation_date" : "1626782384627",
        "number_of_replicas" : "2",
        "uuid" : "25Utmz-rQNOmAMjv3GxcsQ",
        "version" : {
          "created" : "7120099"
        }
      }
    }
  }
}

number_of_replicas副分片变为2

5. 删除索引

#删除单个索引
DELETE /index_name
#一次性删除全部索引
DELETE /_all
DELETE /*