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Editorial Team
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Asked: 2026-06-02T20:39:37+00:00

[ServiceContract] public interface Service { [OperationContract(IsOneWay = true)] void ServiceMethod(); } I set server’s

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[ServiceContract]
public interface Service
{
   [OperationContract(IsOneWay = true)]
   void ServiceMethod();
}

I set server’s code with IsOneWay = true, because the client does not care about the server’s result and the server’s method may need run a long time (e.g.30 mins) in some cases.

But I found the client still waits for the server’s method to be finished. After the server finished in 30 mins, client requests again, report the CommunicationException:

“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 ’00:01:00′”.

I think the client still wait the result (default receiveTimeOut is 10 mins), then lead to timeout. I use WCF 3.0.

Can you help me? Thank you!

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1 Answer

  1. Editorial Team

    A one-way call in WCF is not the same thing as an asynchronous call.

    Even though the client making a one-way call will not receive a response from the service, if the service does not have a thread available to dispatch or queue the incoming client request then the client will hang and eventually timeout if no dispatcher thread becomes available within the timeout period.

    The number of available threads and the size of the request queue are managed by WCF and are determined by the service concurrency mode, session mode, and whether the service was configured with reliable messaging, amongst other factors.

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