Webサービスクライアントで接続を閉じる

Question

System.ServiceModel.ClientBase <を継承するWebサービスを持つ.Net 3.5アプリケーションがあり、Webサービスメソッドで300〜400の呼び出しを行った後、次の例外が発生します。

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) 

誰でもこの問題の解決方法を知っていますか？

Answer 1

サーバーによって接続が閉じられました。何が原因でサーバーが切断されたのか分からない場合（おそらくクラッシュしたため）、例外をキャッチしてもう一度やり直す以外は何もできません。

Answer 2

お持ちでない場合は、あなたができることの数は、あります

• サーバー上のサービスのログファイルまたはイベントログにのぞき見を持つ任意のチャンスが。

• WCFトレースログを有効にする - Webサービス・エラーのhttp://msdn.microsoft.com/en-us/library/ms732023(v=vs.100).aspx

• 適切な取り扱いを参照してください - https://codereview.stackexchange.com/questions/18319/recommended-method-to-use-a-wcf-service-client-and-handling-its-exceptions