Amazon S3 .NET SDK只能在2个流中上传

Question

我一直在尝试从我的C＃应用程序提高S3服务器的上传速度一段时间，但是我获得的最大值是2个同时流，每个流量最高为100 kb/s。如果令人沮丧，考虑到浏览器，您可以上传到1.0 MB/s。这是我的上传代码，它消耗了UploadPartrequest，在单独的线程中调用。Nevetherless，S3仅允许同时上传2个线程：

List<UploadPartResponse> uploadResponses = new List<UploadPartResponse>();
        List<Thread> uploadThreads = new List<Thread>();
        InitiateMultipartUploadRequest initiateRequest = new InitiateMultipartUploadRequest
        {
            BucketName = BucketName,
            Key = result
        };
        InitiateMultipartUploadResponse initResponse = _S3client.InitiateMultipartUpload(initiateRequest);
        _curContentLength = new FileInfo(pathToResult + result).Length;
        long partSize = 5 * (long)Math.Pow(2, 20); // 5 MB
          long filePosition = 0;
          for (int i = 1; filePosition < _curContentLength; i++)
          {
              if ( filePosition + partSize > _curContentLength )
              {
                  partSize = _curContentLength - filePosition;
              }
              UploadPartRequest uploadRequest = new UploadPartRequest
                  {
                      BucketName = BucketName,
                      UploadId = initResponse.UploadId,
                      PartNumber = i,
                      PartSize = partSize,
                      FilePosition = filePosition,
                      Key = result,
                FilePath = (pathToResult + result)
                  };
                  uploadRequest.StreamTransferProgress += uploadFileProgressCallback;
                  // Upload part and add response to our list.
                  Thread t = new Thread(() => uploadResponses.Add(_S3client.UploadPart(uploadRequest)));
                  t.Start();
                  uploadThreads.Add(t);
                  filePosition += partSize;
              }
              foreach (var uploadThread in uploadThreads)
              {
                  uploadThread.Join();
              }
              // Step 3: complete.
              CompleteMultipartUploadRequest completeRequest = new CompleteMultipartUploadRequest
                  {
                      BucketName = BucketName,
                      UploadId = initResponse.UploadId,
                      Key = result
                      //,PartETags = new List<PartETag>(uploadResponses)
                  };
              completeRequest.AddPartETags(uploadResponses);
              _S3client.CompleteMultipartUpload(completeRequest);
              _systemEnable = true;
              WriteLineToLog("Успешно залил ролик на S3!", intId);
              break;
          }

代码有问题，或者不可能用速度大于200 kb/s的C＃上传到S3？thnks！

Answer 1

我认为这个问题不是来自亚马逊S3

您可以通过将此配置添加到您的app.config文件：

来更改它。

<configuration>  
  <system.net>
    <connectionManagement>
       <add address="*" maxconnection="20" />
    </connectionManagement>
  </system.net>
</configuration>