boto - DynamoDB2和Boto 2.9.5对批处理查询和单个项目的错误请求

我在使用DynamoDB2 API使用boto 2.9.5进行任何单个或批处理查询时遇到问题

我需要这样的批处理查询：

one_org = Table('[table-name]').batch_get(keys=[
        {'key': '[user-id-hash]'},
        {'key': '[user-id-hash]'},
        {'key': '[user-id-hash]'},
        {'key': '[user-id-hash]'},
    ])

for user in one_org:
    for key, value in user.items():
        print key, value

我不断收到此异常：

boto.dynamodb2.exceptions.ValidationException: ValidationException: 400 Bad Request
{
    u'message': u'The provided key element does not match the schema',
    u'__type': u'com.amazon.coral.validate#ValidationException'
}

鉴于此消息，我认为密钥的名称可能有问题，但是我们的密钥称为密钥，所以对我来说没有任何意义。

我在下面包括了堆栈跟踪：

Traceback (most recent call last):
  File "aws/interfaces.py", line 38, in <module>
    for user in one_org:
  File "/home/kasper/Falcon/thenest/venv/local/lib/python2.7/site-packages/boto/dynamodb2/results.py", line 59, in next
    self.fetch_more()
  File "/home/kasper/Falcon/thenest/venv/local/lib/python2.7/site-packages/boto/dynamodb2/results.py", line 141, in fetch_more
    results = self.the_callable(*args, **kwargs)
  File "/home/kasper/Falcon/thenest/venv/local/lib/python2.7/site-packages/boto/dynamodb2/table.py", line 949, in _batch_get
    raw_results = self.connection.batch_get_item(request_items=items)
  File "/home/kasper/Falcon/thenest/venv/local/lib/python2.7/site-packages/boto/dynamodb2/layer1.py", line 152, in batch_get_item
    body=json.dumps(params))
  File "/home/kasper/Falcon/thenest/venv/local/lib/python2.7/site-packages/boto/dynamodb2/layer1.py", line 1479, in make_request
    retry_handler=self._retry_handler)
  File "/home/kasper/Falcon/thenest/venv/local/lib/python2.7/site-packages/boto/connection.py", line 852, in _mexe
    status = retry_handler(response, i, next_sleep)
  File "/home/kasper/Falcon/thenest/venv/local/lib/python2.7/site-packages/boto/dynamodb2/layer1.py", line 1518, in _retry_handler
    response.status, response.reason, data)
boto.dynamodb2.exceptions.ValidationException: ValidationException: 400 Bad Request
{u'message': u'The provided key element does not match the schema', u'__type': u'com.amazon.coral.validate#ValidationException'}

最佳答案

我今天早上正面临着同样的问题。如果您在架构中定义了RangeKey，则还需要指定它。如果您不想指定RangeKey而仅使用HashKey来获取该项目，则可以考虑删除RangeKey。