DynamoDB Streams异常

Question

我正在尝试从AWS实现Dynamodb Streams Java示例。我多次重复出现以下2个错误，然后程序按预期完成。任何想法是什么原因？

[error] c.a.s.k.c.l.w.ShardSyncTask - Caught exception while sync'ing Kinesis shards and leases 
com.amazonaws.AmazonServiceException: null (Service: AmazonDynamoDBStreams; Status Code: 400; Error Code: UnknownOperationException; Request ID: VEPKVGT3GN8BSBP3A74LOEVIPVVV4KQNSO5AEMVJF66Q9ASUAAJG) 
    at com.amazonaws.http.AmazonHttpClient.handleErrorResponse(AmazonHttpClient.java:1182) ~[aws-java-sdk-core-1.10.20.jar:na] 
    at com.amazonaws.http.AmazonHttpClient.executeOneRequest(AmazonHttpClient.java:770) ~[aws-java-sdk-core-1.10.20.jar:na] 
    at com.amazonaws.http.AmazonHttpClient.executeHelper(AmazonHttpClient.java:489) ~[aws-java-sdk-core-1.10.20.jar:na] 
    at com.amazonaws.http.AmazonHttpClient.execute(AmazonHttpClient.java:310) ~[aws-java-sdk-core-1.10.20.jar:na] 
    at com.amazonaws.services.dynamodbv2.AmazonDynamoDBStreamsClient.invoke(AmazonDynamoDBStreamsClient.java:638) ~[aws-java-sdk-dynamodb-1.10.20.jar:na] 
    at com.amazonaws.services.dynamodbv2.AmazonDynamoDBStreamsClient.describeStream(AmazonDynamoDBStreamsClient.java:363) ~[aws-java-sdk-dynamodb-1.10.20.jar:na] 
[error] c.a.s.d.s.m.AmazonServiceExceptionTransformer - Could not transform a DynamoDB AmazonServiceException to a compatible Kinesis exception 
com.amazonaws.AmazonServiceException: null (Service: AmazonDynamoDBStreams; Status Code: 400; Error Code: UnknownOperationException; Request ID: JLVS3D8Q363LGGI60O42LDULBFVV4KQNSO5AEMVJF66Q9ASUAAJG) 
    at com.amazonaws.http.AmazonHttpClient.handleErrorResponse(AmazonHttpClient.java:1182) ~[aws-java-sdk-core-1.10.20.jar:na] 
    at com.amazonaws.http.AmazonHttpClient.executeOneRequest(AmazonHttpClient.java:770) ~[aws-java-sdk-core-1.10.20.jar:na] 
    at com.amazonaws.http.AmazonHttpClient.executeHelper(AmazonHttpClient.java:489) ~[aws-java-sdk-core-1.10.20.jar:na] 
    at com.amazonaws.http.AmazonHttpClient.execute(AmazonHttpClient.java:310) ~[aws-java-sdk-core-1.10.20.jar:na] 
    at com.amazonaws.services.dynamodbv2.AmazonDynamoDBStreamsClient.invoke(AmazonDynamoDBStreamsClient.java:638) ~[aws-java-sdk-dynamodb-1.10.20.jar:na] 
    at com.amazonaws.services.dynamodbv2.AmazonDynamoDBStreamsClient.describeStream(AmazonDynamoDBStreamsClient.java:363) ~[aws-java-sdk-dynamodb-1.10.20.jar:na] 

Answer 1

我们遇到了同样的问题，结果发现我们在设置中缺少区域，明确设置区域使其工作。

对于dynamodb-local，你不需要区域，所以使用它可以在没有区域的情况下工作，然后当你在AWS中部署它时，你会得到上述错误。

Answer 2

@ mikeal-sundberg提供的答案对我不起作用，我最终认为这是由于AWS与Dynamo本地提供的端点不同。

使用Dynamo local，您可以为标准的Dynamo客户端以及AmazonDynamoDBStreams客户端使用相同的端点。部署时，AmazonDynamoDBStreams客户端需要一个特定于流的端点，如https://streams.dynamodb.eu-west-1.amazonaws.com。