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,我也设法立即模仿了这个问题。
如何解决此问题?
UPDATE 1 :这是异常发生后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
UPDATE 2 :UDP数据包的大小为100-200字节。
更新3 :以下是有问题的代码:
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);
}
}
UPDATE 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。
答案 0 :(得分:-1)
你可以“卷起”数据包,这样你就可以发送更少大包的数据包......然后在另一面展开它们吗? 20k包/秒是很多sendto的。