wcf warnings and error <p>I am trying to debug why my WCF service seems to randomly hang under high load. I added some trace and got the warings and errors below:</p> <pre><code>warning: PipeConnetion aborted warning: Failed to open System.ServiceModel.Channels.ServerSessionPreambleConnectionReader+ServerFramingDuplexSessionChannel warning: Faulted System.ServiceModel.Channels.ServerSessionPreambleConnectionReader+ServerFramingDuplexSessionChannel warning: An incoming channel was disposed because there was an error while attempting to open it. error: System.IO.PipeException, System.ServiceModel, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 There was an error writing to the pipe: The pipe is being closed. (232, 0xe8). </code></pre> <p>the stacktrace for the error is:</p> <pre><code>System.ServiceModel.Channels.PipeConnection.WriteHelper(Byte[] buffer, Int32 offset, Int32 size, Boolean immediate, TimeSpan timeout, Object&amp;amp; holder) System.ServiceModel.Channels.PipeConnection.Write(Byte[] buffer, Int32 offset, Int32 size, Boolean immediate, TimeSpan timeout) System.ServiceModel.Channels.BufferedConnection.WriteNow(Byte[] buffer, Int32 offset, Int32 size, TimeSpan timeout, BufferManager bufferManager) System.ServiceModel.Channels.BufferedConnection.Write(Byte[] buffer, Int32 offset, Int32 size, Boolean immediate, TimeSpan timeout) System.ServiceModel.Channels.ServerSessionPreambleConnectionReader.ServerFramingDuplexSessionChannel.OnOpen(TimeSpan timeout) System.ServiceModel.Channels.CommunicationObject.Open(TimeSpan timeout) System.ServiceModel.Dispatcher.ChannelHandler.OpenAndEnsurePump() System.Runtime.IOThreadScheduler.ScheduledOverlapped.IOCallback(UInt32 errorCode, UInt32 numBytes, NativeOverlapped* nativeOverlapped) System.Runtime.Fx.IOCompletionThunk.UnhandledExceptionFrame(UInt32 error, UInt32 bytesRead, NativeOverlapped* nativeOverlapped) System.Threading._IOCompletionCallback.PerformIOCompletionCallback(UInt32 errorCode, UInt32 numBytes, NativeOverlapped* pOVERLAP) </code></pre> <p>I cannot find any information related to these errors. Anybody have an idea or some pointers as to where I should start looking?</p> <p>edit: This service is hosted within a Windows service, and is a InstanceContextMode.Single. The client making these calls creates and disposes of the proxy after each call.</p>