WCF服務通道中的CommunicationObjectAbortedException，同時多個數據加載

Question

我在客戶端服務器應用程序中使用WCF服務，並且在服務器和客戶端之間進行通信時遇到以下錯誤。

Error Message =>> System.ServiceModel.CommunicationObjectAbortedException: The communication object, System.ServiceModel.Channels.ServiceChannel, cannot be used for communication because it has been Aborted. 

Server stack trace: 
    at System.ServiceModel.Channels.CommunicationObject.ThrowIfDisposedOrNotOpen() 
    at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs, TimeSpan timeout) 
    at System.ServiceModel.Channels.ServiceChannelProxy.InvokeService(IMethodCallMessage methodCall, ProxyOperationRuntime operation) 
    at System.ServiceModel.Channels.ServiceChannelProxy.Invoke(IMessage message) 

Exception rethrown at [0]: 
    at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg) 
    at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type) 
    at ServiceLib.ServiceCallbackInterfaces.IHostServiceCallback.SendEventAndStatus(String message, Boolean isBackupGenerated) 
    at ServiceLib.Services.DriversService.objDriver_EventReceived(Object sender, EventReceivedEventArgs e) 

應用場景：客戶端通過WCF服務正從服務器的數據，並使用nettcp結合。服務器與真實設備連接，每秒生成20-30個事件。使用WCF的回調接口將生成的事件作爲字符串消息推送到所有連接的客戶端。如果客戶端沒有任何進程負載（只是接收事件和顯示），它工作正常。但是當我們在客戶端執行一些加載過程並且在一段時間內忙碌時，它會給出錯誤。

注意：我已經在nettcp綁定中設置了最大的所有超時如下，但仍然沒有解決問題。

NetTcpBinding tcpBinding = new NetTcpBinding(SecurityMode.None); 
       tcpBinding.MaxBufferPoolSize = 2147483647; 
       tcpBinding.MaxReceivedMessageSize = 2147483647; 
       tcpBinding.MaxBufferSize = 2147483647; 
       tcpBinding.ReaderQuotas.MaxStringContentLength = 2147483647; 
       tcpBinding.ReaderQuotas.MaxDepth = 2147483647; 
       tcpBinding.ReaderQuotas.MaxBytesPerRead = 2147483647; 
       tcpBinding.ReaderQuotas.MaxNameTableCharCount = 2147483647; 
       tcpBinding.ReaderQuotas.MaxArrayLength = 2147483647; 
       tcpBinding.SendTimeout = TimeSpan.MaxValue; 
       tcpBinding.ReceiveTimeout = TimeSpan.MaxValue; 
       tcpBinding.ReliableSession.InactivityTimeout = TimeSpan.MaxValue; 

請指導我是否有任何其他需要與通信通道或綁定相關的設置？

UPDATE：錯誤的SVC示蹤拋出：

<E2ETraceEvent xmlns="http://schemas.microsoft.com/2004/06/E2ETraceEvent"> 
<System xmlns="http://schemas.microsoft.com/2004/06/windows/eventlog/system"> 
<EventID>131075</EventID> 
<Type>3</Type> 
<SubType Name="Error">0</SubType> 
<Level>2</Level> 
<TimeCreated SystemTime="2011-09-30T08:37:01.5691715Z" /> 
<Source Name="System.ServiceModel" /> 
<Correlation ActivityID="{00000000-0000-0000-0000-000000000000}" /> 
<Execution ProcessName="ServerUtility" ProcessID="2396" ThreadID="5" /> 
<Channel /> 
<Computer>TEST</Computer> 
</System> 
<ApplicationData> 
<TraceData> 
<DataItem> 
<TraceRecord xmlns="http://schemas.microsoft.com/2004/10/E2ETraceEvent/TraceRecord" Severity="Error"> 
<TraceIdentifier>http://msdn.microsoft.com/it-IT/library/System.ServiceModel.Diagnostics.ThrowingException.aspx</TraceIdentifier> 
<Description>Throwing an exception.</Description> 
<AppDomain>ServerUtility.exe</AppDomain> 
<Exception> 
<ExceptionType>System.ServiceModel.CommunicationException, System.ServiceModel, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</ExceptionType> 
<Message>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'.</Message> 
<StackTrace> 
at System.ServiceModel.Channels.SocketConnection.EndRead() 
at System.ServiceModel.Channels.DelegatingConnection.EndRead() 
at System.ServiceModel.Channels.SessionConnectionReader.OnAsyncReadComplete(Object state) 
at System.ServiceModel.Channels.SocketConnection.FinishRead() 
at System.ServiceModel.Channels.SocketConnection.AsyncReadCallback(Boolean haveResult, Int32 error, Int32 bytesRead) 
at System.ServiceModel.Channels.OverlappedContext.CompleteCallback(UInt32 error, UInt32 numBytes, NativeOverlapped* nativeOverlapped) 
at System.Runtime.Fx.IOCompletionThunk.UnhandledExceptionFrame(UInt32 error, UInt32 bytesRead, NativeOverlapped* nativeOverlapped) 
at System.Threading._IOCompletionCallback.PerformIOCompletionCallback(UInt32 errorCode, UInt32 numBytes, NativeOverlapped* pOVERLAP) 
</StackTrace> 
<ExceptionString>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'. ---&gt; System.Net.Sockets.SocketException: An existing connection was forcibly closed by the remote host 
    --- End of inner exception stack trace ---</ExceptionString> 
<InnerException> 
<ExceptionType>System.Net.Sockets.SocketException, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</ExceptionType> 
<Message>An existing connection was forcibly closed by the remote host</Message> 
<StackTrace> 
at System.ServiceModel.Channels.SocketConnection.EndRead() 
at System.ServiceModel.Channels.DelegatingConnection.EndRead() 
at System.ServiceModel.Channels.SessionConnectionReader.OnAsyncReadComplete(Object state) 
at System.ServiceModel.Channels.SocketConnection.FinishRead() 
at System.ServiceModel.Channels.SocketConnection.AsyncReadCallback(Boolean haveResult, Int32 error, Int32 bytesRead) 
at System.ServiceModel.Channels.OverlappedContext.CompleteCallback(UInt32 error, UInt32 numBytes, NativeOverlapped* nativeOverlapped) 
at System.Runtime.Fx.IOCompletionThunk.UnhandledExceptionFrame(UInt32 error, UInt32 bytesRead, NativeOverlapped* nativeOverlapped) 
at System.Threading._IOCompletionCallback.PerformIOCompletionCallback(UInt32 errorCode, UInt32 numBytes, NativeOverlapped* pOVERLAP) 
</StackTrace> 
<ExceptionString>System.Net.Sockets.SocketException (0x80004005): An existing connection was forcibly closed by the remote host</ExceptionString> 
<NativeErrorCode>2746</NativeErrorCode> 
</InnerException> 
</Exception> 
</TraceRecord> 
</DataItem> 
</TraceData> 
<System.Diagnostics xmlns="http://schemas.microsoft.com/2004/08/System.Diagnostics"> 
<LogicalOperationStack></LogicalOperationStack> 
<Timestamp>4730654290080</Timestamp> 
</System.Diagnostics> 
</ApplicationData> 
</E2ETraceEvent> 

Answer 1

正如你在你的問題中提到，您已經將所有超時最大。所以根據我的觀點，在您定義的InstanceContextMode中應該存在問題。您在服務中定義了哪種模式？ PerSession，PerCall或Single。可能存在PerCall，您可以通過同一對象（全局聲明的服務對象）定義和調用服務，那麼可能會導致進入故障狀態或斷開連接。

因此，如果您定義了PerSession模式，則使用客戶端的單個對象（全局聲明）從服務中獲取數據。如果您定義了PerCall選項，那麼每次都創建一個新對象。

希望對你有所幫助。請隨時詢問任何疑問...