What is the difference between DefaultAppPool and Classic .NET AppPool in IIS7?

Question

I have a problem with timeouts in IIS. In the web.config the session timeout was set to 60 minutes but after 20 minutes the session ends.

This problem only occurs in II

Answer 1

I think your question has the answer in it. IIS 6 and 7 have a concept of Application Pool timeout, this is different from session timeout.

What is the difference between modes ... already addressed. I'm uncertain about how your questions regarding pipelines and differences in modes relate to your problem - the timeouts.

Some perspective: Idle timeout won't occur on a web site with any traffic. You've probably got a problem that only occurs in a QA site or your dev box. The idle timeout setting exists to save resources on your dev box and $5/month hosting companies with lots of underused web sites (e.g. my blog). You probably do not want idle timeout on a public site.

Session timeout - set in web config, if a user doesn't hit the server, their session times out.

Idle timeout Noone touches the web server at all for 20 minutes, so shut down to save resources. In IIS 6, this is on the performance tab of the app pool - and is easy to disable. In IIS 7, you can set in in application pool advanced settings or in the processModel element. I don't run as much IIS 7 as IIS 6, but it looks like removing the element from web.config, or setting to 0, gets infinite idle timeout.