Question

我试图通过Python在Elasticsearch中创建索引。我部署了一个本地ES实例，查询运行正常。但是，我有一个架构。这是：

{
  "mappings": {
    "payment":{
      "properties":{
        "timestamp":{"type":"date"},
        "base_amount":{"type":"integer"},
        "derived_id":{"type":"keyword", "fielddata": true},
        "attempts":{"type":"integer"},
        "status":{"type":"text","fielddata":true},
        "error_code":{"type":"text","fielddata":true}
      }
    }
  }
}

以下是我用来创建此索引的代码

import json

import requests

schema = {
    "mappings": {
        "payment": {
            "properties": {
                "timestamp": {"type": "date"},
                "base_amount": {"type": "integer"},
                "derived_key": {"type": "keyword", "fielddata": True},
                "attempts": {"type": "integer"},
                "status": {"type": "text", "fielddata": True},
                "error_code": {"type": "text", "fielddata": True}
            }
        }
    }
}

index = 'http://localhost:9200/payment_index_2016_08_21'
r = requests.put(index, data=json.dumps(schema))

print r.content

我得到的错误是

{＆＃34;错误＆＃34; {＆＃34; ROOT_CAUSE＆＃34;：[{＆＃34;类型＆＃34;：＆＃34; mapper_parsing_exception＆＃34;＆＃34;理由＆＃34 ;：＆＃34;映射 [derived_key]的定义有不支持的参数：[fielddata：是]＆＃34;}]，＆＃34;输入＆＃34;：＆＃34; mapper_parsing_exception＆＃34;，＆＃34;原因＆＃34;：＆＃34;无法解析 mapping [payment]：[derived_key]的映射定义不支持的参数：[fielddata：真]＆＃34;＆＃34; caused_by＆＃34; {＆＃34;类型＆＃34;：＆＃34; mapper_parsing_exception＆＃34;＆＃34;理由＆＃34;：＆＃34;映射 [derived_key]的定义有不支持的参数：[fielddata：真]＆＃34;}}，＆＃34;状态＆＃34; 400}

我不明白fielddata = true导致问题的原因，因为我认为https://www.elastic.co/guide/en/elasticsearch/reference/current/fielddata.html允许{{1}}。有什么线索背后的问题是什么？

Answer 1

您不需要在关键字字段上启用fielddata。你可以对关键字字段进行聚合。

索引映射时不支持Elasticsearch fielddata

1 个答案: