Hyper-V机器上的套接字异常

Question

最近,我们的整个QA环境从VMWare迁移到Hyper-V虚拟机.

我们的一个应用程序以每秒20K数据包的速率将UDP数据包发送到多播云.

虽然这在VMWare环境中运行良好,但Hyper-V使应用程序在几分钟的工作后抛出以下异常:

System.Net.Sockets.SocketException (0x80004005): An invalid argument was supplied
   at System.Net.Sockets.Socket.Send(Byte[] buffer, Int32 offset, Int32 size, SocketFlags socketFlags)

在将套接字的发送缓冲区大小定义为1,000,000字节时,我还设法立即模仿了这个问题.

我该如何解决这个问题？

更新1:一旦发生异常,这是来自事件查看器的日志条目:

Faulting application name: Agent.exe, version: 1.0.12.7366, time stamp: 0x51389f69
Faulting module name: KERNELBASE.dll, version: 6.1.7601.18015, time stamp: 0x50b83c8a
Exception code: 0xe0434352
Fault offset: 0x0000c41f
Faulting process id: 0xaf0
Faulting application start time: 0x01ce1b4ce509dc7a
Faulting application path: C:\Users\DevUser\Desktop\QA\Agent.exe
Faulting module path: C:\Windows\syswow64\KERNELBASE.dll
Report Id: d2b45dce-8740-11e2-86f9-00155d022804

更新2:UDP数据包的大小为100-200字节.

更新3:这是有问题的代码:

    m_socket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
    m_socket.Ttl = 1;

    if (GetRawParameter("send") != null)
    {
      Log("Starting sender...");

      StartSender();
    }

    ...snip...

private static void StartSender()
{
  m_lastPacketNumber = 0;

  m_socket.Connect(new IPEndPoint(m_ipAddress, m_port));

  if (m_bufferSize > 0)
    m_socket.SetSocketOption(
      SocketOptionLevel.Socket, SocketOptionName.SendBuffer, m_bufferSize);

  byte[] dataPad = null;

  if (m_packetSize > 8)
  {
    dataPad = new byte[m_packetSize - sizeof(long)];

    for (int i = 0; i < dataPad.Length; i++)
    {
      dataPad[i] = 0xFF;
    }
  }

  while (true)
  {
    Log("Sending data...");

    for (int i = 0; i < m_packetsPerSec; i++)
    {
      var data = BitConverter.GetBytes(m_lastPacketNumber.Value);

      if (dataPad != null)
        data = data.Concat(dataPad).ToArray();

      if (m_packetDump != null)
        m_packetDump.Add(m_lastPacketNumber.Value);

      m_socket.Send(data);

      if (m_usePerformanceCounters)
        IncreaseSendCounters(1);

      m_lastPacketNumber++;
    }

    Log(m_lastPacketNumber + " packets sent.");

    Thread.Sleep(1000);
  }
}

更新4:当我尝试每秒发送100K数据包时,失败的Send()似乎发生在#14156或#32485或#25412数据包(不是第一个!)上.

Answer 1

您能否“卷起”数据包，以便发送更少的较大尺寸的数据包......然后在另一侧展开它们？20k 数据包/秒对于 sendto 来说已经是很多了。