Elasticsearch 常用命令

来源：互联网发布：网络机柜的尺寸编辑：程序博客网时间：2024/05/17 01:56

1，查看文档总数
curl -XGET ‘http://localhost:9200/_count?pretty’ -d ’
{
“query”: {
“match_all”: {}
}
}
‘

2, DSL 句型 01 查询某关键字，同时，有一个范围条件

{    "query" : {        "filtered" : {            "filter" : {                "range" : {                    "age" : { "gt" : 30 }                }            },            "query" : {                "match" : {                    "last_name" : "Smith"                }            }        }    }}

3,aggs 按照某个字段聚合

# Calculate the most popular interests for all employeesGET /megacorp/employee/_search{  "aggs": {    "all_interests": {      "terms": {        "field": "interests"      }    }  }}

4, 查询某个条件，然后聚合

GET /megacorp/employee/_search{  "query": {    "match": {      "last_name": "smith"    }  },  "aggs": {    "all_interests": {      "terms": {        "field": "interests"      }    }  }}

5，查看集群健康

curl -XGET "http://localhost:9200/_cluster/health"

6，改变副本个数

PUT /blogs/_settings{   "number_of_replicas" : 2}

7, # Delete ALL DATA IN THE CLUSTER!

DELETE /_all

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