WCF ConcurrencyMode = ConcurrencyMode.Multiple is not working

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I've created the following service:

C#

[ServiceBehavior(InstanceContextMode = InstanceContextMode.Single, ConcurrencyMode = ConcurrencyMode.Multiple)]
public class ActivatorService : IActivatorService

private bool function()
{
    Thread.Sleep(60000);
    return false;
}

I try to call it from 2 - 3 clients, but no client can call the function until another client exited from it.

Why is the service not calling the method concurrently?

Posted 16-Mar-12 14:01pm

impeham

Updated 16-Mar-12 15:00pm

RaisKazi

v2

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Wayne Gaylard · Answer 1 · 2012-03-16T19:35:00

Solution 1

Take a look at this article from Kenny W InstanceContextMode, ConcurrencyMode, and Server-side Threading[^]. Hope it helps.

Posted 16-Mar-12 19:35pm

Wayne Gaylard

Comments

impeham 17-Mar-12 10:43am

Well, i read this article during my searches in google for a solution, but it doesn't help since it says that setting the ServiceBehavior attribute's parameters like i did should work, and in such case i should have hit the breakpoint inside "function" twice when i called it from two different processes and it does not work in parallel - only after the 60 secs period i get the call from the other process.
By the way - i'm not using IIS for hosting but doing it with a simple console application.

impeham · Answer 2 · 2012-03-17T04:54:00

Solution 2

Solved by creating the ServiceHost in a different thread.
Creating the host in a WinForm application did not allow it to use multithreading.

Posted 17-Mar-12 4:54am

impeham

killabyte · Answer 3 · 2012-03-17T10:28:00

Solution 3

InstanceContextMode.Single is the problem change it to percall or persession

Posted 17-Mar-12 10:28am

killabyte