ElasticSearch 常用命令大全
1、获取索引列表
GET /_cat/indices?format=json&index=[索引名称，可使用通配符]
2、别名操作
GET /_alias/20*
POST /_aliases
{
"actions": [
{
"add": {
"alias": "logs_current",
"index": "logs_2018-10"
}
},
{
"remove": {
"alias": "logs_current",
"index": "logs_2018-09"
}
},
{
"add": {
"alias": "last_3_months",
"index": "logs_2018-10"
}
},
{
"remove": {
"alias": "last_3_months",
"index": "logs_2018-07"
}
}
]
}
3、索引操作
创建
PUT /index_name
{ "settings": { "number_of_shards": 3, "number_of_replicas": 1 } }
Response：
{ "acknowledged" : true, "shards_acknowledged" : true }
POST /_reindex?wait_for_completion=false
{
"source": {
"index": "nba"
},
"dest": {
"index": "nba_20200202"
}
}
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4、查询操作
模糊匹配
排序
5、任务管理
使用Task API获取所有运行的reindex请求的状态:
GET _tasks?detailed=true&actions=*reindex
根据id直接查找任务:
GET /_tasks/taskId:1
取消任务
POST _tasks/task_id:1/_cancel
更改requests_per_second参数的值:
POST _reindex/task_id:1/_rethrottle?requests_per_second=-1
6.最大行数设置
put /index/_settings
｛“max_result_window”：“1000000”｝
然后get查看是否生效
7.修改密码
http请求需要设置Authorization:Basic base64 encode(elastic:容器设置的密码 )
以curl -XPUT --user elastic:容器设置的密码 http://127.0.0.1:9201/_xpack/security/user/username/_password -H "Content-Type:application/json" -d { "password" : "111111" }
8.索引更新
curl -XPUT http://localhost:9200/myindex/_settings -H Content-Type: application/json -d
{
"index" : {
"number_of_replicas" : 0
}
}
9.索引迁移
创建新索引
PUT log_car_milage_1
修改map
POST /log_car_milage_1/_mapping
{
"properties" : {
"deviceId" : {
"type" : "text",
"fields" : {
"keyword" : {
"type" : "keyword",
"ignore_above" : 256
}
}
},
"device_id" : {
"type" : "text",
"fields" : {
"keyword" : {
"type" : "keyword",
"ignore_above" : 256
}
}
},
"distance" : {
"type" : "long"
},
"milage" : {
"type" : "long"
},
"timestamp" : {
"type" : "date"
}
}
}
从旧索引导入数据到新索引
POST _reindex
{
"source": {
"index": "log_car_milage"
},
"dest": {
"index": "log_car_milage_1",
}
}
删除旧索引
DELETE /log_car_milage
给新索引添加别名（旧索引的名称）
POST /_aliases
{
"actions": [
{ "add": {
"alias": "log_car_milage",
"index": "log_car_milage_1"
}}
]
}