Elasticsearch 常用 curl 命令

Posted on 2019-08-22 11:11 in Java

Elasticsearch 常用 curl 命令

虽然可以通过各种语言的 client 来操作 Elasticsearch，但是 curl 还是最方便和最常用的。

查看 Elasticsearch 版本

curl -XGET 'localhost:9200'

{
  "name" : "node-1",
  "cluster_name" : "rs-application",
  "cluster_uuid" : "ouChgr_bTKmGm4MicVEt6g",
  "version" : {
    "number" : "7.3.0",
    "build_flavor" : "default",
    "build_type" : "rpm",
    "build_hash" : "de777fa",
    "build_date" : "2019-07-24T18:30:11.767338Z",
    "build_snapshot" : false,
    "lucene_version" : "8.1.0",
    "minimum_wire_compatibility_version" : "6.8.0",
    "minimum_index_compatibility_version" : "6.0.0-beta1"
  },
  "tagline" : "You Know, for Search"
}

查看索引状态

curl -XGET 'localhost:9200/_cat/indices?v&pretty'

health status index                   uuid                   pri rep docs.count docs.deleted store.size pri.store.size
green  open   .kibana_task_manager    EYi69PoYQASniv_dTpvkdA   1   0          2            0     30.8kb         30.8kb
green  open   kibana_sample_data_logs L0oSKJgnRmOxCp3zSHZojw   1   0      14075            0     11.5mb         11.5mb
green  open   .kibana_1               SaISvKYHQ6Su72LVtLpv9A   1   0         44            1    127.7kb        127.7kb

新建 index mapping

curl -X PUT "localhost:9200/netdisk-document-v1" -H 'Content-Type: application/json' -d'
{
  "mappings": {
    "properties": {
      "docId": {"type": "long"},
      "title":   {"type": "text", "analyzer": "hanlp_index", "search_analyzer": "hanlp_nlp", "index_options" : "offsets"}, 
      "content": {"type": "text" , "analyzer": "hanlp_index", "search_analyzer": "hanlp_nlp", "index_options" : "offsets"}, 
      "uploadDate": {"type": "date"}
    }
  }
}
'

查看 index mapping

curl -XGET 'localhost:9200/netdisk-document-v1/_mapping/?pretty'

删除 index

curl -X DELETE 'localhost:9200/netdisk-document-v1?pretty'

设置 index 别名 alias

curl -X PUT "localhost:9200/netdisk-document-v1/_alias/netdisk-document?pretty"

删除 index 别名 alias

curl -X DELETE "localhost:9200/netdisk-document-v1/_alias/netdisk-document?pretty"

alias 和 index 互查

curl -X GET "localhost:9200/*/_alias/netdisk-document?pretty"

curl -X GET "localhost:9200/netdisk-document-v1/_alias/*?pretty"

返回的结果都是

{
  "netdisk-document-v1" : {
    "aliases" : {
      "netdisk-document-cn" : { }
    }
  }
}

重建索引 reindex

因为 index 的 mapping 只能新增字段，不能修改现有的字段，只能通过重建索引可以完成

curl -X POST "localhost:9200/_reindex?pretty" -H 'Content-Type: application/json' -d'
{
  "source": {
    "index": "netdisk-document-v1"
  },
  "dest": {
    "index": "netdisk-document-v2"
  }
}
'

查看 Elasticsearch 后台任务

可以查看重建索引目前的进度

curl -X GET "localhost:9200/_tasks?detailed=true&actions=*reindex&pretty"

新增记录和查询

新增和更新记录

curl -X PUT "localhost:9200/netdisk-document-v1/_doc/123" -H 'Content-Type: application/json' -d'
{
    "title": "这是一个测试标题", 
    "content": "这是一个测试内容", 
    "uploadDate": "2019-08-08T08:00:00"
}
'

删除记录

curl -X DELETE "localhost:9200/netdisk-document-v1/_doc/123"

查询 DSL

term/match/match_phrase 的区别 https://www.jianshu.com/p/eb30eee13923

设置 minimum_should_match https://my.oschina.net/u/3625378/blog/1492575

curl -XGET "http://localhost:9200/report-doc-cn/_search?pretty" -H 'Content-Type: application/json' -d'
{
    "query": {
        "match_phrase": {
            "title": {
                "query": "新能源"
            }
        }
    }
}'

测试 analyzer

curl -XPOST 'http://localhost:9200/_analyze?pretty' -H 'Content-Type: application/json' -d'
{
  "analyzer": "hanlp_index",
  "text": "5G是未来重要的趋势"
}'

java elasticsearch