问DynamoDB表-> CloudSearch ==字段"l“在域配置中不存在
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Stack Overflow用户

提问于 2020-02-05 13:23:45

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摘要

我有一个DynamoDB表，它有不到10个条目，我正在使用CloudSearch索引。CloudSearch索引器建议一个名为"l"的不存在的属性。这似乎来源于DynamoDB JSON " list“键(它存储一个列表对象数组，在我的例子中是所有字符串)。无论如何，即使在索引字段配置时删除此键，在文档上载时仍然会出现以下硬错误：

{["Field "l" does not exist in domain configuration (near operation with index 3; document_id null)",""add" operation must contain at least one "field" (near operation with index 5; document_id null)",""add" operation must contain at least one "field" (near operation with index 7; document_id null)","Field "l" does not exist in domain configuration (near operation with index 11; document_id null)",""add" operation must contain at least one "field" (near operation with index 13; document_id null)",""add" operation must contain at least one "field" (near operation with index 15; document_id null)","Field "l" does not exist in domain configuration (near operation with index 19; document_id null)",""add" operation must contain at least one "field" (near operation with index 21; document_id null)",""add" operation must contain at least one "field" (near operation with index 23; document_id null)","Field "l" does not exist in domain configuration (near operation with index 27; document_id null)",""add" operation must contain at least one "field" (near operation with index 29; document_id null)",""add" operation must contain at least one "field" (near operation with index 31; document_id null)","Field "l" does not exist in domain configuration (near operation with index 35; document_id null)",""add" operation must contain at least one "field" (near operation with index 37; document_id null)",""add" operation must contain at least one "field" (near operation with index 39; document_id null)"] }

细节

你好!我有一个DynamoDB表，它包含了少于10个具有35个不同类型属性(字符串、数字、字符串的列表和映射)的项。我正在尝试通过aws控制台gui用CloudSearch索引这个表。当我进入索引字段配置页面时，我的大部分属性都会显示--特别是缺少列表。但是，索引器确实建议使用"l"，如下所示：

我假设这是DynamoDB JSON键。我试着保留和删除这个建议，然后继续并创建搜索域。无论哪种方式，十分钟后，当我试图上传文档时，我会得到上面的错误。

我已经发现，从我的表项中删除所有列表将导致"l"建议消失，并最终按预期进行文档上传。

DynamoDB表项是通过api创建的(使用boto3 3的DynamoDB "Table“接口，如下所示：

body = {}
# body is populated as a regular python dict
dynamodb = boto3.resource('dynamodb')
table = dynamodb.Table("table_name")
table.put_item(Item = body, ConditionExpression = 'attribute_not_exists(ds_name)')