Закрытие соединения с клиентом веб-службы

Question

У меня есть приложение .Net 3.5 с веб-службой, которая наследует от System.ServiceModel.ClientBase <>, а после того, как я делаю 300-400 вызовов метода webservice, я получаю следующее исключение:

System.ServiceModel.CommunicationException: The underlying connection was closed: A connection that was expected to be kept alive was closed by the server. ---> System.Net.WebException: The underlying connection was closed: A connection that was expected to be kept alive was closed by the server. ---> System.IO.IOException: Unable to read data from the transport connection: An existing connection was forcibly closed by the remote host. ---> System.Net.Sockets.SocketException: An existing connection was forcibly closed by the remote host 
at System.Net.Sockets.Socket.Receive(Byte[] buffer, Int32 offset, Int32 size, SocketFlags socketFlags) 
at System.Net.Sockets.NetworkStream.Read(Byte[] buffer, Int32 offset, Int32 size) 
--- End of inner exception stack trace --- 
at System.Net.Sockets.NetworkStream.Read(Byte[] buffer, Int32 offset, Int32 size) 
at System.Net.FixedSizeReader.ReadPacket(Byte[] buffer, Int32 offset, Int32 count) 
at System.Net.Security._SslStream.StartFrameHeader(Byte[] buffer, Int32 offset, Int32 count, AsyncProtocolRequest asyncRequest) 
at System.Net.Security._SslStream.StartReading(Byte[] buffer, Int32 offset, Int32 count, AsyncProtocolRequest asyncRequest) 
at System.Net.Security._SslStream.ProcessRead(Byte[] buffer, Int32 offset, Int32 count, AsyncProtocolRequest asyncRequest) 
at System.Net.TlsStream.Read(Byte[] buffer, Int32 offset, Int32 size) 
at System.Net.PooledStream.Read(Byte[] buffer, Int32 offset, Int32 size) 
at System.Net.Connection.SyncRead(HttpWebRequest request, Boolean userRetrievedStream, Boolean probeRead) 
--- End of inner exception stack trace --- 
at System.Net.HttpWebRequest.GetResponse() 
at System.ServiceModel.Channels.HttpChannelFactory.HttpRequestChannel.HttpChannelRequest.WaitForReply(TimeSpan timeout) 
--- End of inner exception stack trace --- 

Server stack trace: 
at System.ServiceModel.Channels.HttpChannelUtilities.ProcessGetResponseWebException(WebException webException, HttpWebRequest request, HttpAbortReason abortReason) 
at System.ServiceModel.Channels.HttpChannelFactory.HttpRequestChannel.HttpChannelRequest.WaitForReply(TimeSpan timeout) 
at System.ServiceModel.Channels.RequestChannel.Request(Message message, TimeSpan timeout) 
at System.ServiceModel.Dispatcher.RequestChannelBinder.Request(Message message, TimeSpan timeout) 
at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs, TimeSpan timeout) 
at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs) 
at System.ServiceModel.Channels.ServiceChannelProxy.InvokeService(IMethodCallMessage methodCall, ProxyOperationRuntime operation) 
at System.ServiceModel.Channels.ServiceChannelProxy.Invoke(IMessage message) 

Кто-нибудь знает, как решить эту проблему?

Answer 1

Соединение было закрыто сервером. Если вы не знаете, что заставляет сервер отключиться (возможно, потому что он разбился), вы не можете ничего сделать, кроме исключения исключения и повторите попытку, возможно, после небольшой задержки.

Answer 2

Есть ряд вещей, которые вы можете сделать, если вы еще не:

• Любой шанс иметь быстрый взгляд на файлы журнала службы или журнал событий на сервере.

• Включить WCF Ведение журнала трассировки - см http://msdn.microsoft.com/en-us/library/ms732023(v=vs.100).aspx

• Правильная обработка ошибок веб-сервиса - см https://codereview.stackexchange.com/questions/18319/recommended-method-to-use-a-wcf-service-client-and-handling-its-exceptions