WCF service failure

Question

 

Hi,

I have windows application with WCF service. On form load, there are some methods to load master table values , and i have an method to get some data based on month. I have 3 calls made to WCF service to fetch information and display on form load. Most of the times, the application hangs and I get a message 'Unable to process request'  with a 'Catastrophic failure' message. And any frequent calls to poll DB through the WCF service hangs the application.

 

Can anyone help me in resolving the problem for catastrophic failure.

 

Thanks,

Sangeetha

Answer 1

You should try the WCF forum:
http://forums.microsoft.com/MSDN/ShowForum.aspx?ForumID=118&SiteID=1

Answer 2

Hi,

You can resolve this issue by using "using" statement.
Because ones you called service, it will not close automatically and request will reach at its maximum limit. So you have to close after use ones.

using(serviceClient srvClient = new serviceClient)
{
    //code here
}

//This service will be freed connection after.

Answer 3

This can be solved by creating singleton class as interface between web service reference and application.  Then it will create only one instance of service reference.

class ServiceInterface

{

     private static ServiceInterface  _instance;

     private ServiceClient _service = new ServiceClient ;

 

    private ServiceInterface()

  {

       //Prevent accessing default constructor

  }

  public static ServiceInterface GetInstance()

 {

     if(_instance == null)

     {

      _instance = new ServiceInterface();

    }

        return _instance;

 

 }

   // You can add your functions to access web service here

}

Answer 4

thanks dude Your answer is great

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Answer 5

Hi,

You can resolve this issue by using "using" statement.
Because ones you called service, it will not close automatically and request will reach at its maximum limit. So you have to close after use ones.

using(serviceClient srvClient = new serviceClient)
{
    //code here
}

//This service will be freed connection after.

Thanks.

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