@SdkInternalApi
    final DescribeBackupResult executeDescribeBackup(DescribeBackupRequest describeBackupRequest) {

        ExecutionContext executionContext = createExecutionContext(describeBackupRequest);
        AWSRequestMetrics awsRequestMetrics = executionContext.getAwsRequestMetrics();
        awsRequestMetrics.startEvent(Field.ClientExecuteTime);
        Request<DescribeBackupRequest> request = null;
        Response<DescribeBackupResult> response = null;

        try {
            awsRequestMetrics.startEvent(Field.RequestMarshallTime);
            try {
                request = new DescribeBackupRequestProtocolMarshaller(protocolFactory).marshall(super.beforeMarshalling(describeBackupRequest));
                // Binds the request metrics to the current request.
                request.setAWSRequestMetrics(awsRequestMetrics);
                request.addHandlerContext(HandlerContextKey.CLIENT_ENDPOINT, endpoint);
                request.addHandlerContext(HandlerContextKey.ENDPOINT_OVERRIDDEN, isEndpointOverridden());
                request.addHandlerContext(HandlerContextKey.SIGNING_REGION, getSigningRegion());
                request.addHandlerContext(HandlerContextKey.SERVICE_ID, "DynamoDB");
                request.addHandlerContext(HandlerContextKey.OPERATION_NAME, "DescribeBackup");
                request.addHandlerContext(HandlerContextKey.ADVANCED_CONFIG, advancedConfig);

            } finally {
                awsRequestMetrics.endEvent(Field.RequestMarshallTime);
            }

            URI cachedEndpoint = null;
            if (endpointDiscoveryEnabled) {
                cachedEndpoint = cache.get(awsCredentialsProvider.getCredentials().getAWSAccessKeyId(), false, endpoint);
            }

            HttpResponseHandler<AmazonWebServiceResponse<DescribeBackupResult>> responseHandler = protocolFactory.createResponseHandler(
                    new JsonOperationMetadata().withPayloadJson(true).withHasStreamingSuccessResponse(false), new DescribeBackupResultJsonUnmarshaller());
            response = invoke(request, responseHandler, executionContext, cachedEndpoint, null);

            return response.getAwsResponse();

        } finally {

            endClientExecution(awsRequestMetrics, request, response);
        }
    }
<p>
Describes an existing backup of a table.
</p>
<p>
You can call <code>DescribeBackup</code> at a maximum rate of 10 times per second.
</p>

@param describeBackupRequest
@return Result of the DescribeBackup operation returned by the service.
@throws BackupNotFoundException
        Backup not found for the given BackupARN.
@throws InternalServerErrorException
        An error occurred on the server side.
@sample AmazonDynamoDB.DescribeBackup
@see <a href="http://docs.aws.amazon.com/goto/WebAPI/dynamodb-2012-08-10/DescribeBackup" target="_top">AWS API
     Documentation</a>
aws-java-sdk-dynamodb/src/main/java/com/amazonaws/services/dynamodbv2/AmazonDynamoDBClient.java