ElasticSearch [脚本] 未知字段 [文件]，未找到解析器

Question

我用script_score自定义评分：

GET /customer/_search
{
    "query": {
        "function_score": {
            "query": {
                "match": {
                    "name": "Mark"
                }
            },
            "script_score": {
              "script": {
                "lang": "painless",
                "file": "test"
              }
            }
        }
    }
}

我设置了 "file": "test"，并将 test.groovy 文件放在 config/scripts 目录中，但是我得到了这些错误：

{
  "error": {
    "root_cause": [
      {
        "type": "illegal_argument_exception",
        "reason": "[script] unknown field [file], parser not found"
      }
    ],
    "type": "illegal_argument_exception",
    "reason": "[script] unknown field [file], parser not found"
  },
  "status": 400
}

[script] unknown field [file], parser not found！为什么？我需要安装一些插件吗？

Elasticsearch 版本：6.2.3

已安装插件：None

JVM 版本：1.8.0_181

OS 版本: Ubuntu Linux 4.4.0-124-generic

Answer 1

File scripts have been removed in ES 6.0, you should now use stored scripts 代替。

您可以轻松migrate your Groovy script to Painless。

首先，存储您的脚本：

POST _scripts/test
{
  "script": {
    "lang": "painless",
    "source": "Math.log(_score * 2)"
  }
}

然后在您的查询中使用它：

GET /customer/_search
{
    "query": {
        "function_score": {
            "query": {
                "match": {
                    "name": "Mark"
                }
            },
            "script_score": {
              "script": {
                "id": "test"
              }
            }
        }
    }
}

ElasticSearch [脚本] 未知字段 [文件]，未找到解析器

ElasticSearch [script] unknown field [file], parser not found

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