Server detection of client timeout

Question

User-357729547 posted

HTTP Rest... (WebInvoke) Is there a way of detecting on server side if and when a client receives a timeout ??? I'm implementing a WCF long polling service, and would like to know when the client receives a timeout and restarts the long polling HTTP call.. 

Answer 1

User220959680 posted

Client-side Timeouts

On the client side:

1. SendTimeout – used to initialize the OperationTimeout, which governs the whole process of sending a message, including receiving a reply message for a request/reply service operation. This timeout also applies when sending reply messages from a callback contract method.
   
   
2. OpenTimeout – used when opening channels when no explicit timeout value is specified
   
   
3. CloseTimeout – used when closing channels when no explicit timeout value is specified
   
   
4. ReceiveTimeout – is not used
   
   

Client-side Timeouts

On the service side:

1. SendTimeout, OpentTimeout, CloseTimeout are the same as on the client
   
   
2. ReceiveTimeout – used by the Service Framework Layer to initialize the session-idle timeout which controls how long a session can be idle before timing out.

Timeouts in binding in Service

 <system.serviceModel>
    <bindings>
      <wsHttpBinding>
        <binding openTimeout="00:10:00" 
                 closeTimeout="00:10:00" 
                 sendTimeout="00:10:00" 
                 receiveTimeout="00:10:00">
        </binding>
      </wsHttpBinding>
    </bindings>
  </system.serviceModel>

Answer 2

User-357729547 posted

Hi .. thx for the effort, but not what I was looking for. I am looking for an EVENT on SERVER side (so, not client), that a channel has timed out.

I've looked at OperationContect.Current.Channel.Closed and Faulted, but they don't get triggered on timeout. 

Answer 3

User220959680 posted

ooking for an EVENT on SERVER side (so, not client), that a channel has timed out.

configuration for the Service and Client suggested above.  Note that below configuration is for the Service (copied from above), which impact the service timeout behavior.

<system.serviceModel>
    <bindings>
      <wsHttpBinding>
        <binding openTimeout="00:10:00"
                 closeTimeout="00:10:00"
                 sendTimeout="00:10:00"
                 receiveTimeout="00:10:00">
        </binding>
      </wsHttpBinding>
    </bindings>
  </system.serviceModel>

By configuring above it is quite feasible to increase/decrease the timeouts for the service. Note that same can be done at client side, BUT the service has to support/have the same configuration.

can read more at http://social.msdn.microsoft.com/Forums/en-US/wcf/thread/84551e45-19a2-4d0d-bcc0-516a4041943d/