[fieldName] 的 Elasticsearch Bulk Indexing 对象映射尝试将字段 [null] 解析为对象，但找到了具体值答案

【问题标题】：Elasticsearch Bulk Indexing object mapping for [fieldName] tried to parse field [null] as object, but found a concrete value[fieldName] 的 Elasticsearch Bulk Indexing 对象映射尝试将字段 [null] 解析为对象，但找到了具体值
【发布时间】：2018-09-07 09:47:17
【问题描述】：

问题：批量索引抛出错误：[classIds] 的对象映射尝试将字段 [null] 解析为对象，但找到了具体值

这是我要发布的 JSON：

[{'_type': 'nodelookup', '_id': '248', '_source': {'modifiedOn': datetime.datetime(2013, 8, 28, 2, 44, 5), 'name': u'Big Words for Little People', 'sourceId': '', 'createdOn': datetime.datetime(2011, 8, 26, 16, 0, 49), 'classIds': [463, 10597], 'source': '', 'wikiInfo': {'wikiText': None, 'wikiLink': None}, 'notableInfo': {'source': u'NOTABLE_FOR', 'value': u'Book'}, 'relevance': 113L, 'urlFriendlyName': u'big-words-for-little-people', 'properties': [{'classId': 463, 'properties': [{'name': u'First Published', 'value': u'2008-09-08', 'id': 1411L}, {'name': u'Author', 'value': u'Jamie Lee Curtis', 'id': 1415L}]}, {'classId': 10597}], 'ontologyId': '248'}, '_index': 'nodes_a0f37542-3d66-4c2c-ad8c-5e59d9cdfa97'}]

忽略 json 中与 python 相关的额外字符/方法，示例 datetime.datetime()、无等

尝试发布文档时出现错误响应：

Traceback (most recent call last):
  File "node_bulk_import_es.py", line 73, in <module>
    helpers.bulk(es, data)
  File "/usr/local/lib/python2.7/dist-packages/elasticsearch/helpers/__init__.py", line 188, in bulk
    for ok, item in streaming_bulk(client, actions, **kwargs):
  File "/usr/local/lib/python2.7/dist-packages/elasticsearch/helpers/__init__.py", line 160, in streaming_bulk
    for result in _process_bulk_chunk(client, bulk_actions, raise_on_exception, raise_on_error, **kwargs):
  File "/usr/local/lib/python2.7/dist-packages/elasticsearch/helpers/__init__.py", line 132, in _process_bulk_chunk
    raise BulkIndexError('%i document(s) failed to index.' % len(errors), errors)
elasticsearch.helpers.BulkIndexError: (u'1 document(s) failed to index.', [{u'index': {u'status': 400, u'_type': u'nodelookup', u'_id': u'248', u'error': {u'reason': u'object mapping for [classIds] tried to parse field [null] as object, but found a concrete value', u'type': u'mapper_parsing_exception'}, u'_index': u'nodes_a0f37542-3d66-4c2c-ad8c-5e59d9cdfa97'}}])

我已经为这个索引预定义了映射，这是我的映射：

{
   "nodes_e37a1e17-962d-40fb-bae2-ff20759ab1c6": {
      "mappings": {
         "nodelookup": {
            "properties": {
               "classIds": {
                  "type": "nested"
               },
               "createdOn": {
                  "type": "date",
                  "index": "analyzed",
                  "format": "strict_date_optional_time||epoch_millis"
               },
               "modifiedOn": {
                  "type": "date",
                  "index": "analyzed",
                  "format": "strict_date_optional_time||epoch_millis"
               },
               "name": {
                  "type": "string",
                  "index": "not_analyzed",
                  "fields": {
                     "nameSimple": {
                        "type": "string",
                        "analyzer": "simple"
                     },
                     "nameStandard": {
                        "type": "string",
                        "analyzer": "standard"
                     }
                  }
               },
               "notableInfo": {
                  "properties": {
                     "source": {
                        "type": "string"
                     },
                     "value": {
                        "type": "string"
                     }
                  }
               },
               "ontologyId": {
                  "type": "integer"
               },
               "properties": {
                  "type": "nested"
               },
               "relevance": {
                  "type": "integer",
                  "index": "analyzed"
               },
               "source": {
                  "type": "string"
               },
               "sourceId": {
                  "type": "string"
               },
               "urlFriendlyName": {
                  "type": "string"
               },
               "wikiInfo": {
                  "properties": {
                     "wikiLink": {
                        "type": "string",
                        "index": "not_analyzed"
                     },
                     "wikiText": {
                        "type": "string",
                        "index": "not_analyzed"
                     }
                  }
               }
            }
         }
      }
   }
}

不知道这里出了什么问题，我上周尝试时代码运行良好，现在它失败了，请帮助我解决问题。

提前致谢！

【问题讨论】：

您确定 classId 应该嵌套吗？从您的批量中，我看到了数值。
但是数组认为是嵌套类型对吗？
是的，但对象数组不是一无所有的数组。您的批量应该如下所示：'classIds': [{'someName': 463}, {'someName': 10597}]

标签： python json elasticsearch

【解决方案1】：

classIds 的字段类型应该是Integer，而不是Nested。

在代码中：

@Field(type = FieldType.Integer)
private List<Integer> classIds;

在 ES 中：

"classIds": {
    "type": "integer"
}

这是因为FieldType 指的是列表中包含的包含类型。顺便说一句，我正在使用 Java。

【讨论】：