使用 ElasticSearch 索引电子邮件 - 映射问题答案

【问题标题】：Index email with ElasticSearch - mapping problem使用 ElasticSearch 索引电子邮件 - 映射问题
【发布时间】：2021-05-16 00:40:50
【问题描述】：

我使用 ES v7。我想用 ElasticSearch 索引电子邮件地址，但使用 uax_url_email 标记器。我想用完整的电子邮件地址搜索 Elastic。

我尝试使用此映射：

PUT /test
{
  "settings": {
    "analysis": {
      "filter": {
        "email": {
          "type": "pattern_capture",
          "preserve_original": 1,
          "patterns": [
            "([^@]+)",
            "(\\p{L}+)",
            "(\\d+)",
            "@(.+)",
            "([^-@]+)"
          ]
        }
      },
      "analyzer": {
        "email": {
          "tokenizer": "uax_url_email",
          "filter": [
            "email",
            "lowercase",
            "unique"
          ]
        }
      }
    }
  },
  "mappings": {
    "emails": {
      "properties": {
        "email": {
          "type": "string",
          "analyzer": "email"
        }
      }
    }
  }
}

但出现错误

{
  "error": {
    "root_cause": [
      {
        "type": "illegal_argument_exception",
        "reason": "Failed to parse value [1] as only [true] or [false] are allowed."
      }
    ],
    "type": "illegal_argument_exception",
    "reason": "Failed to parse value [1] as only [true] or [false] are allowed."
  },
  "status": 400
}

它有什么问题？这个映射应该是什么样子？

【问题讨论】：

标签： elasticsearch elasticsearch-mapping

【解决方案1】：

您的请求格式不正确，您将1 传递给preserve_original 参数，该参数仅接受true 和false，如异常中所述。

除此之外，还有其他一些问题，例如您使用的 String 数据类型在 v7.1 中已被弃用，emails 在您的 JSON 中出现在 properties 之前。

在我当地测试的正确映射会喜欢

{
    "settings": {
        "analysis": {
            "filter": {
                "email": {
                    "type": "pattern_capture",
                    "preserve_original": true,
                    "patterns": [
                        "([^@]+)",
                        "(\\p{L}+)",
                        "(\\d+)",
                        "@(.+)",
                        "([^-@]+)"
                    ]
                }
            },
            "analyzer": {
                "email": {
                    "tokenizer": "uax_url_email",
                    "filter": [
                        "email",
                        "lowercase",
                        "unique"
                    ]
                }
            }
        }
    },
    "mappings": {
        "properties": {
            "email": {
                "type": "text",
                "analyzer": "email"
            }
        }
    }
}

【讨论】：

@sadhana，请点击我答案前面的向右箭头来投票并接受答案:)

【解决方案2】：

谢谢。

我插入了几封电子邮件以使用此更正后的映射进行索引。

现在，当我搜索特定电子邮件时，我会得到所有结果。我只想拥有一张唱片。我该怎么做？

http://localhost:9200/test/_search?q=email:abc@abc.net

{
  "took": 6,
  "timed_out": false,
  "_shards": {
    "total": 1,
    "successful": 1,
    "skipped": 0,
    "failed": 0
  },
  "hits": {
    "total": {
      "value": 4,
      "relation": "eq"
    },
    "max_score": 0.21149008,
    "hits": [
      {
        "_index": "test",
        "_type": "_doc",
        "_id": "0IWQlXcBnPuV0JvQXCHW",
        "_score": 0.21149008,
        "_source": {
          "email": "abc@abc.net"
        }
      },
      {
        "_index": "test",
        "_type": "_doc",
        "_id": "0oWUlXcBnPuV0JvQISFe",
        "_score": 0.21149008,
        "_source": {
          "email": "abc1@abc.net"
        }
      },
      {
        "_index": "test",
        "_type": "_doc",
        "_id": "z4WQlXcBnPuV0JvQNCGn",
        "_score": 0.19982167,
        "_source": {
          "email": "abc2@abc.net"
        }
      },
      {
        "_index": "test",
        "_type": "_doc",
        "_id": "0YWQlXcBnPuV0JvQdiHo",
        "_score": 0.19982167,
        "_source": {
          "email": "abc3@abc.net"
        }
      }
    ]
  }
}

【讨论】：