es常用操作

1.查看所有索引

_cat/indices?v

2.删除索引

DELETE  my_index

3.查询缓存

curl -XGET  http://127.0.0.1:9200/my_index/_search?request_cache=true' -d'

4.开启缓存

#配置文件中添加
index.request.cache.enable: true

5.清空缓存

curl -XPOST 'localhost:9200/kimchy,elasticsearch/_cache/clear?request_cache=true'

6.修改index.max_result_window

curl -XPUT http://127.0.0.1:9200/_all/_settings -d '{ "index.max_result_window" :"1000000"}'

7.设置磁盘告警线

curl -XPUT "http://localhost:9200/_cluster/settings" -H 'Content-Type: application/json' -d'
{
  "transient": {
    "cluster.routing.allocation.disk.watermark.low": "100gb",
    "cluster.routing.allocation.disk.watermark.high": "50gb",
    "cluster.routing.allocation.disk.watermark.flood_stage": "10gb",
    "cluster.info.update.interval": "1m"
  }
}'

8.查看文件句柄数量

curl -XGET http://127.0.0.1:9200/_nodes/stats/process?pretty

9.修改索引副本个数

curl -XPUT "http://localhost:9200/my_index/_settings" -H 'Content-Type: application/json' -d'
{
  "number_of_replicas": 2
}'

10.修改 refresh 时间

curl -XPUT "http://localhost:9200/index/_settings" -H 'Content-Type: application/json' -d'
{
  "refresh_interval”: “10s"
  
}'

11开启慢日志查询

curl -XPUT "http://localhost:9200/index/_settings" -H 'Content-Type: application/json' -d'
{
"index.search.slowlog.threshold.query.warn" : "10s", 
"index.search.slowlog.threshold.fetch.debug": "500ms", 
"index.indexing.slowlog.threshold.index.info": "5s" 

}'

集群操作

1.查看集群健康状况

curl -XGET "http://localhost:9200/_cat/health?v"

2.查看集群各节点内存使用情况

curl -XGET "http://localhost:9200/_cat/nodes?v&h=name,port,sm"

3.查看集群节点

curl -XGET "http://localhost:9200/_cat/nodes?v"

4.查看文档数量

curl -XGET "http://localhost:9200/_cat/count?v"

5.查看集群索引

只显示状态为黄色的
curl -XGET "http://localhost:9200/_cat/indices?v&health=yellow"
根据文档降序排列
curl -XGET "http://localhost:9200/_cat/indices?v&s=docs.count:desc"
显示每个索引占用的内存
curl -XGET "http://localhost:9200/_cat/indices?v&h=i,tm&s=tm:desc"
获取每个索引所占用的磁盘空间,按照逆序排列
curl -XGET "http://localhost:9200/_cat/indices?v&h=i,store.size&s=store.size:desc"

6.获取集群的setting

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

7.查看集群所在磁盘的分配状况

curl -XGET "http://localhost:9200/_cat/allocation?v"

ES 索引管理

1.创建索引

PUT /xmc_index?pretty

2.添加文档到索引

PUT /xmc_indexa/_doc/1?pretty
{

    "name":"xmc"
    "phone":"12312312"
}

3.创建索引，设置索引分片数

PUT twitter
{
    "settings":{
        "index" :{
            "number_of_shards":3,
            "number_of_replicas":2
        }
    
    }

}

4.创建mapping映射

PUT xmc_indexa
{
    "settings":{
        "index":{
            "number_of_shards":3,
            "number_of_replicas":2
        }
    },
    "mappings":{
        "mytype":{
              "properties":{
                  "name":{"type":"text"},
                  "phone":{"type": "long"}    
        }
    }
  }
}

#判断索引是否存在

HEAD xmc_indexa

参考

https://blog.csdn.net/ZYC88888/article/details/91463253

https://www.cnblogs.com/leeSmall/p/9195782.html

https://blog.csdn.net/ifenggege/article/details/86103918  es 查询