Question

我正在使用WCF双工通道进行服务回调交互，另外我在另一个端口上使用另一个服务。一段时间后，双工通道出现故障但是当我尝试使用它时，我得到一个通信异常（我不知道通道何时出现故障，我不能使用SessionFaulted事件）。接收超时是无限的，setTimeout是30秒。

问题是我找不到办法处理这个异常，没有堆栈跟踪，我无法在任何地方捕获它。

我使用行为扩展进行诊断/错误处理来调查，但没有运气。

例外：

2013-12-23 11:00:34,514 ERROR General - An exception was thrown during a service call. 
Details: System.ServiceModel.CommunicationException: The socket connection was aborted. 
This could be caused by an error processing your message or a receive timeout being exceeded by the remote host, or an underlying network resource issue. 
Local socket timeout was '10675199.02:48:05.4775807'. ---> System.Net.Sockets.SocketException: An established connection was aborted by the software in your host machine
   at System.ServiceModel.Channels.SocketConnection.HandleReceiveAsyncCompleted()
   at System.ServiceModel.Channels.SocketConnection.OnReceiveAsync(Object sender, SocketAsyncEventArgs eventArgs)
   --- End of inner exception stack trace ---
   at System.Runtime.AsyncResult.End[TAsyncResult](IAsyncResult result)
   at System.ServiceModel.Channels.TransportDuplexSessionChannel.TryReceiveAsyncResult.End(IAsyncResult result, Message& message)
   at System.ServiceModel.Channels.TransportDuplexSessionChannel.EndTryReceive(IAsyncResult result, Message& message)
   at System.ServiceModel.Dispatcher.DuplexChannelBinder.EndTryReceive(IAsyncResult result, RequestContext& requestContext)
   at System.ServiceModel.Dispatcher.ErrorHandlingReceiver.EndTryReceive(IAsyncResult result, RequestContext& requestContext)

有什么想法吗？

Answer 1

经过长时间的研究，由于我没有其他选择，我决定比较新旧回调的参考，如果它们不同，则替换旧的回调。

接收到故障后，另一侧将关闭连接侧。

这不是最好的解决方案，因为它会扼杀通信合同，但它可以完成工作。

使用双工通道的未处理通信异常

1 个答案: