WCF: socket connection was interrupted

Question

CommunicationException was unhandled by user code
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 '02:48:04.9840000'.

I tested this application for several months and just saw this error after making a small change to one of the services. It is only a few seconds, so I do not think this is a timeout problem.

InnerException: System.IO.IOException: read operation failed, see internal exception

(Inner) InnerException: System.Net.Sockets.SocketException - An existing connection was forcibly closed by the remote host.

Any suggestions are welcome!

Thanks in advance

Answer 1

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MaxItemsInObjectGraph, .

Answer 2

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Answer 3

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, MaxReceivedMessageSize, MaxArrayLength, MaxStringContentLength, MaxItemsInObjectGraph, ...

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Answer 4

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using System;

namespace Playground
{
    internal class Program
    {
        private static void Main(string[] args)
        {
            Console.WriteLine((int)new SomeResponse().Enum);
            Console.ReadLine();
        }

        public enum SomeEnum
        {
            Value1 = 1,
            Value2 = 2,
            Value3 = 3
        }

        public class SomeResponse
        {
            public SomeEnum Enum { get; set; }
        }
    }
}

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SomeResponse WCF, , , .

Answer 5

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Answer 6

- remoteSystem clientSystem

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• dev.clientSubsystem.acme dev.clientSubsystem.acme

,

Test-NetConnection -Port 808 -ComputerName dev.remote-system.acme-corp.net-InformationLevel Detailed

It turned out that this error occurred when the clientSystem was configured for authentication using a private certificate ( dev.clientSubsystem.acme), but the certificate does not exist - or in our case referred to an invalid certificate for authentication.