Azure 4 min timeout in web app

问题

My project is an ASP.NET MVC 4 project.

While in localhost it works fine when I host it in Azure I get a timeout in ajax calls that take more than 4 minutes. I am sure that the problem is with azure because it doesn't matter what I'm doing in the server. even just set Thread.sleep(300000) I get a timeout.

I read in: https://azure.microsoft.com/en-us/blog/new-configurable-idle-timeout-for-azure-load-balancer/ That

a common practice to keep the connection active for a longer period is to use TCP Keep-alive

and there is no other option for web apps. So I guess that what I need is help to keep alive code in asp.net. I can't figure this out by myself. tried to send every one minute simple ajax call to the server and this doesn't help me so I tried to use TcpKeepAlive like this:

public JsonResult MyLongOperation()
{
    HttpWebRequest request =(HttpWebRequest)WebRequest.Create("mySite");
    request.Proxy = null;
    request.ServicePoint.SetTcpKeepAlive(true, 30000, 5000); 
    Thread.Sleep(300000);//5 min sleep
    return  Json("ok",JsonRequestBehavior.AllowGet);
}

Didn't work,i need help please!!

回答1:

Had this problem too, found this, worked for me: https://azure.microsoft.com/en-us/blog/new-configurable-idle-timeout-for-azure-load-balancer/

回答2:

Have you tried request.KeepAlive=true; ?

来源：https://stackoverflow.com/questions/33449600/azure-4-min-timeout-in-web-app