HI Remco- we at times get NCrunch connectivity error during execution of a test suite.
After sometime, it gets reconnected and continues with the execution. Looking at the stack trace, what could be the possible reason for this issue:
1.
[07:59:57.9585-?-254]
Ceasing to send messages because of an error (was the connection closed?): System.NullReferenceException: Object reference not set to an instance of an object.Server stack trace:
at .Write(Byte[] , Int32 , Int32 )
at nCrunch.Core.Grid.Connectivity.Zlib.DeflateStream.Write(Byte[] buffer, Int32 offset, Int32 count)
at nCrunch.Core.Grid.Connectivity.BidirectionalStream.Write(Byte[] buffer, Int32 offset, Int32 count)
at System.Runtime.Remoting.Messaging.StackBuilderSink._PrivateProcessMessage(IntPtr md, Object[] args, Object server, Object[]& outArgs)
at System.Runtime.Remoting.Messaging.StackBuilderSink.AsyncProcessMessage(IMessage msg, IMessageSink replySink)
Exception rethrown at [0]:
at System.Runtime.Remoting.Proxies.RealProxy.EndInvokeHelper(Message reqMsg, Boolean bProxyCase)
at nCrunch.Core.Grid.Connectivity.BidirectionalStream..EndInvoke(IAsyncResult )
at nCrunch.Core.Grid.Connectivity.BidirectionalStream.EndWrite(IAsyncResult asyncResult)
at nCrunch.Core.Grid.Connectivity.GridMessageSender.(IAsyncResult )
[07:59:57.9595-?-206] Ceasing to send messages because of an error (was the connection closed?): System.NullReferenceException: Object reference not set to an instance of an object.
2.
Quote:Quote:Quote:20:29:36.097-?-22] Unable to read data from a socket because of an exception: 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 nCrunch.Core.Grid.Connectivity.DecryptorStream.Read(Byte[] buffer, Int32 offset, Int32 count)
at nCrunch.Core.Grid.Connectivity.BidirectionalStream.Read(Byte[] buffer, Int32 offset, Int32 count)
at .Read(Byte[] , Int32 , Int32 )
at nCrunch.Core.Grid.Connectivity.Zlib.DeflateStream.Read(Byte[] buffer, Int32 offset, Int32 count)
at nCrunch.Core.Grid.Connectivity.BidirectionalStream.Read(Byte[] buffer, Int32 offset, Int32 count)
at System.IO.Stream.<>c.<BeginReadInternal>b__39_0(Object )
at System.Threading.Tasks.Task`1.InnerInvoke()
at System.Threading.Tasks.Task.Execute()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at System.IO.Stream.EndRead(IAsyncResult asyncResult)
at nCrunch.Core.Grid.Connectivity.OpenConnection..()
[20:29:36.2376-?-38] Ceasing to send messages because of an error (was the connection closed?): System.IO.IOException: Unable to write data to 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.Send(Byte[] buffer, Int32 offset, Int32 size, SocketFlags socketFlags)
at System.Net.Sockets.NetworkStream.Write(Byte[] buffer, Int32 offset, Int32 size)
--- End of inner exception stack trace ---
3.
[09:02:17.2295-?-373] Ceasing to send messages because of an error (was the connection closed?): nCrunch.Core.Grid.Connectivity.Zlib.ZlibException:
Something is fishy. [stream error]
Server stack trace:
at .(FlushType )
at nCrunch.Core.Grid.Connectivity.Zlib.ZlibCodec.Deflate(FlushType flush)
at .Write(Byte[] , Int32 , Int32 )
at nCrunch.Core.Grid.Connectivity.Zlib.DeflateStream.Write(Byte[] buffer, Int32 offset, Int32 count)
at nCrunch.Core.Grid.Connectivity.BidirectionalStream.Write(Byte[] buffer, Int32 offset, Int32 count)
at System.Runtime.Remoting.Messaging.StackBuilderSink._PrivateProcessMessage(IntPtr md, Object[] args, Object server, Object[]& outArgs)
at System.Runtime.Remoting.Messaging.StackBuilderSink.AsyncProcessMessage(IMessage msg, IMessageSink replySink)
Exception rethrown at [0]:
at System.Runtime.Remoting.Proxies.RealProxy.EndInvokeHelper(Message reqMsg, Boolean bProxyCase)
at nCrunch.Core.Grid.Connectivity.BidirectionalStream..EndInvoke(IAsyncResult )
at nCrunch.Core.Grid.Connectivity.BidirectionalStream.EndWrite(IAsyncResult asyncResult)
at nCrunch.Core.Grid.Connectivity.GridMessageSender.(IAsyncResult )
