Change WCF default timeout

Question

I have here a WCF Duplex Service, the requierement is that the Callback to the client should have a timeout of 10 seconds, therefor my web.config file of the Service looks like this:

        <bindings>
        <basicHttpBinding>
            <binding name="simulatorEndpoint" closeTimeout="00:00:10" openTimeout="00:00:10" 
                receiveTimeout="00:00:10" sendTimeout="00:00:10" allowCookies="false"
                bypassProxyOnLocal="false" hostNameComparisonMode="StrongWildcard"
                maxBufferSize="65536" maxBufferPoolSize="524288" maxReceivedMessageSize="65536"
                messageEncoding="Text" textEncoding="utf-8" transferMode="Buffered"
                useDefaultWebProxy="true">

                <readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384"
                    maxBytesPerRead="4096" maxNameTableCharCount="16384" />
                <security mode="None">
                    <transport clientCredentialType="None" proxyCredentialType="None"
                        realm="" />
                    <message clientCredentialType="UserName" algorithmSuite="Default" />
                </security>
            </binding>
        </basicHttpBinding>
        <wsDualHttpBinding>
            <binding name="wsdualEndpoint" closeTimeout="00:00:10" openTimeout="00:00:10"
                receiveTimeout="00:00:10" sendTimeout="00:00:10" bypassProxyOnLocal="false"
                transactionFlow="false" hostNameComparisonMode="StrongWildcard"
                maxBufferPoolSize="524288" maxReceivedMessageSize="65536" clientBaseAddress="http://localhost:1235"
                messageEncoding="Text" textEncoding="utf-8" useDefaultWebProxy="true">
                <readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384"
                    maxBytesPerRead="4096" maxNameTableCharCount="16384" />
                <reliableSession ordered="true" inactivityTimeout="00:00:10"  />
                <security mode="Message">
                    <message clientCredentialType="Windows" negotiateServiceCredential="true"
                        algorithmSuite="Default" />
                </security>
            </binding>
        </wsDualHttpBinding>
    </bindings>

on the client side the bindings in the app.config file are the same with the same timeout values.

The effects are now that if the client sends a request to the server the Timeout is 10seconds. But on the other side if the service sends a callback to the client the timeout is 1minute. Thats very strange...obviously the timeout is correctly set on the client side..but not on the service...How can i change the timeout on the service?

PS: I am using Visual Studio 2010 and the debug mode of it with the approbiate ASP.NET Development Server 10.0.0.0

Answer 1

Brief summary of binding timeouts...

Client side:

• SendTimeout is used to initialize the OperationTimeout, which governs the whole interaction for sending a message (including receiving a reply message in a request-reply case). This timeout also applies when sending reply messages from a CallbackContract method.
• OpenTimeout and CloseTimeout are used when opening and closing channels (when no explicit timeout value is passed).
• ReceiveTimeout is not used.

Server side:

• Send, Open, and Close Timeout same as on client (for Callbacks).
• ReceiveTimeout is used by ServiceFramework layer to initialize the session-idle timeout.

[edit: some code] Also try adding this to your service config

<behaviors>
   <endpointBehaviors>
      <behavior name="MyCallbackBehavior">       
         <callbackTimeouts transactionTimeout="00:00:10"/>
      </behavior>
   </endpointBehaviors>
<behaviors>

then add the behavior to your endpoint

<endpoint behaviorConfiguration="MyCallbackBehavior" />