Dear All,

We have a WCF Service deployed on Windows Server 2003 that handles file transfers. When file is in Unix format, I am converting it to Dos format in the initialization stage using System.Diagnostics.Process (.WaitForExit()). Client calls the service:

    obj_DataSenderService = New DataSendClient()
    obj_DataSenderService.InnerChannel.OperationTimeout = New TimeSpan(0, System.Configuration.ConfigurationManager.AppSettings("DatasenderServiceOperationTimeout"), 0)
    str_DataSenderGUID = obj_DataSenderService.Initialize(xe_InitDetails.GetXMLNode)

This works fine, however for large files the conversion takes more than 10 minutes and I am getting exception:

A first chance exception of type 'System.ServiceModel.CommunicationException' occurred in mscorlib.dll

Additional information: 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 '00:59:59.8749992'.

I tried configuring both client:

<system.serviceModel>
  <bindings>
   <netTcpBinding>
    <binding name="NetTcpBinding_IDataSend" closeTimeout="01:00:00"
                    openTimeout="01:00:00" receiveTimeout="01:00:00" sendTimeout="01:00:00"
                    transactionFlow="false" transferMode="Buffered" transactionProtocol="OleTransactions"
                    hostNameComparisonMode="StrongWildcard" listenBacklog="10"
                    maxBufferPoolSize="524288" maxBufferSize="65536" maxConnections="10"
                    maxReceivedMessageSize="65536">
     <readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384"
                        maxBytesPerRead="4096" maxNameTableCharCount="16384" />
     <reliableSession ordered="true" inactivityTimeout="00:10:00"
                        enabled="false" />
     <security mode="None">
      <transport clientCredentialType="Windows" protectionLevel="EncryptAndSign" />
      <message clientCredentialType="Windows" />
     </security>
    </binding>
   </netTcpBinding>
  </bindings>
  <client>
   <endpoint address="net.tcp://localhost:4000/DataSenderEndPoint"
                binding="netTcpBinding" bindingConfiguration="NetTcpBinding_IDataSend"
                contract="IDataSend" name="NetTcpBinding_IDataSend">
    <identity>
     <servicePrincipalName value="host/localhost" />
     <!--<servicePrincipalName value="host/axopwrapp01.Corp.Acxiom.net" />-->
    </identity>
   </endpoint>
  </client>
 </system.serviceModel>

And service:

<system.serviceModel>
    <bindings>
      <netTcpBinding>
        <binding name="NetTcpBinding_IDataSend" closeTimeout="01:00:00"
                    openTimeout="01:00:00" receiveTimeout="01:00:00" sendTimeout="01:00:00"
                    transactionFlow="false" transferMode="Buffered" transactionProtocol="OleTransactions"
                    hostNameComparisonMode="StrongWildcard" listenBacklog="10"
                    maxBufferPoolSize="524288" maxBufferSize="65536" maxConnections="10"
                    maxReceivedMessageSize="65536">
        </binding>
      </netTcpBinding>
    </bindings>
  </system.serviceModel>

but without luck. In the Service trace viewer I can see:

Close process timed out waiting for service dispatch to complete.

with stack trace:

System.ServiceModel.ServiceChannelManager.CloseInput(TimeSpan timeout) System.ServiceModel.Dispatcher.InstanceContextManager.CloseInput(TimeSpan timeout) System.ServiceModel.ServiceHostBase.OnClose(TimeSpan timeout) System.ServiceModel.Channels.CommunicationObject.Close(TimeSpan timeout) System.ServiceModel.Channels.CommunicationObject.Close() DataSenderService.DataSender.OnStop() System.ServiceProcess.ServiceBase.DeferredStop() System.Runtime.Remoting.Messaging.StackBuilderSink._PrivateProcessMessage(IntPtr md, Object[] args, Object server, Int32 methodPtr, Boolean fExecuteInContext, Object[]& outArgs) System.Runtime.Remoting.Messaging.StackBuilderSink.PrivateProcessMessage(RuntimeMethodHandle md, Object[] args, Object server, Int32 methodPtr, Boolean fExecuteInContext, Object[]& outArgs) System.Runtime.Remoting.Messaging.StackBuilderSink.AsyncProcessMessage(IMessage msg, IMessageSink replySink) System.Runtime.Remoting.Proxies.AgileAsyncWorkerItem.DoAsyncCall() System.Runtime.Remoting.Proxies.AgileAsyncWorkerItem.ThreadPoolCallBack(Object o) System.Threading._ThreadPoolWaitCallback.WaitCallback_Context(Object state) System.Threading.ExecutionContext.runTryCode(Object userData) System.Runtime.CompilerServices.RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(TryCode code, CleanupCode backoutCode, Object userData) System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state) System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state) System.Threading._ThreadPoolWaitCallback.PerformWaitCallbackInternal(_ThreadPoolWaitCallback tpWaitCallBack) System.Threading._ThreadPoolWaitCallback.PerformWaitCallback(Object state)

Many thanks Bartek