Search Template、Index Alias

Search Template 目标：解耦程序和搜索DSL

• 创建模板：

  POST _scripts/<templateid>
  {
  "script": {
  "lang": "mustache",
  "source": {
   "query": {
     "match": {
       "title": "{{query_string}}"
     }
   }
  }
  }
  }

  POST _scripts/tmdb
  {
  "script":{
  "lang": "mustache",
  "source": {
   "_source":["firstname","lastname","email"]
  }, 
  "query":{
   "multi_match": {
     "query": "{{q}}",
     "fields": ["firstname","lastname","email"]
   }
  }
  }
  }

• 查看：GET _scripts/tmdb

• 调用：POST tmdb/_search/template{ "id": "tmdb", "params": { "q": "strong" }}

Index Alias：实现零停机运维

POST _aliases
{
  "actions": [
    {
      "add": {
        "index": "accounts",
        "alias": "accountData"
      }
    },
    {
      "remove": {
        "index": "address",
        "alias": "addressData"
      }
    }
  ]
}