如何處理配置的吞吐量例外dynamodb query_2

使用從文檔的例子：如何處理配置的吞吐量例外dynamodb query_2

>>> rev_with_d = users.query_2(
...  account_type__eq='standard_user', 
...  last_name__beginswith='D', 
...  reverse=True, 
...  limit=2 
...) 

>>> for user in rev_with_d: 
...  print user['first_name'] 
'John' 
'Jane'

將如何吞吐量例外，在這種情況下，如何處理？

我曾嘗試在每個循環內使用指數回退，但異常不會在那裏被捕獲。

編輯：

回溯的要求：

Traceback (most recent call last): 
    File "kgraph.py", line 51, in <module> 
    for user in rev_with_d: 
    File "/Library/Python/2.7/site-packages/boto/dynamodb2/results.py", line 62, in __next__ 
    self.fetch_more() 
    File "/Library/Python/2.7/site-packages/boto/dynamodb2/results.py", line 146, in fetch_more 
    results = self.the_callable(*args, **kwargs) 
    File "/Library/Python/2.7/site-packages/boto/dynamodb2/table.py", line 1132, in _query 
    **kwargs 
    File "/Library/Python/2.7/site-packages/boto/dynamodb2/layer1.py", line 1522, in query 
    body=json.dumps(params)) 
    File "/Library/Python/2.7/site-packages/boto/dynamodb2/layer1.py", line 2100, in make_request 
    retry_handler=self._retry_handler) 
    File "/Library/Python/2.7/site-packages/boto/connection.py", line 937, in _mexe 
    status = retry_handler(response, i, next_sleep) 
    File "/Library/Python/2.7/site-packages/boto/dynamodb2/layer1.py", line 2134, in _retry_handler 
    response.status, response.reason, data) 
boto.dynamodb2.exceptions.ProvisionedThroughputExceededException: ProvisionedThroughputExceededException: 400 Bad Request 
{u'message': u'The level of configured provisioned throughput for the table was exceeded. Consider increasing your provisioning level with the UpdateTable API', u'__type': u'com.amazonaws.dynamodb.v20120810#ProvisionedThroughputExceededException'}

來源

2014-10-03 user602525

你有沒有可以提供的回溯，還是你要求假設的情況？此外，博託已經建立了指數退避。只需設置DynamoDBConnection.NumberRetries屬性將其設置爲任何你想要的，默認值是10. – Endophage 2014-10-03 23:59:20

我認爲這是我正在尋找的答案。謝謝 – user602525 2014-10-04 16:49:32

是的，當博託引發這個錯誤時，它已經嘗試過多次運行你的查詢。 – Endophage 2014-10-06 18:21:53

我想你最好設置的query_2max_page_size參數。
您應該設置一個基於您的表的讀取吞吐量和項目大小的值。

來源

2014-11-18 08:33:27 NoamG

如何處理配置的吞吐量例外dynamodb query_2

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