ElasticSearch 學習筆記 - 4. 索引

1 建立索引

（1）簡單方式

PUT study

#! Deprecation: the default number of shards will change from [5] to [1] in 7.0.0; if you wish to continue using the default of [5] shards, you must manage this on the create index request or with an index template
{
  "acknowledged": true,
  "shards_acknowledged": true,
  "index": "study"
}

備註：索引名不能包含大些字母

（2）指定參數

PUT learn
{
  "settings": {
    "number_of_shards": 3,
    "number_of_replicas": 1
  } 
}

2 查看索引

（1）查看指定索引的配置信息

GET /learn/_settings

{
  "learn": {
    "settings": {
      "index": {
        "creation_date": "1539313402808",
        "number_of_shards": "3",
        "number_of_replicas": "1",
        "uuid": "uJaeq_ttTLKArUZNwefGeg",
        "version": {
          "created": "6040299"
        },
        "provided_name": "learn"
      }
    }
  }
}

（2）查看多個索引

GET /learn,study/_settings

3 刪除索引

DELETE test


{
  "acknowledged": true
}

4 索引的打開與關閉

（1）關閉索引

POST /learn/_close

（2）嘗試插入數據

PUT /learn/article/1
{
  "title":"kibana"
}

{
  "error": {
    "root_cause": [
      {
        "type": "index_closed_exception",
        "reason": "closed",
        "index_uuid": "uJaeq_ttTLKArUZNwefGeg",
        "index": "learn"
      }
    ],
    "type": "index_closed_exception",
    "reason": "closed",
    "index_uuid": "uJaeq_ttTLKArUZNwefGeg",
    "index": "learn"
  },
  "status": 400
}

（3）從新打開索引

POST /learn/_open

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