Perceived Loss of All Session Objects

[John Wilcher]

Environment: Windows 2000 Server, IIS 5.0, ASP .Net
Framework 1.1, VB .Net source code

We are experiencing a condition that manifests itself as a
loss of all session objects. Intermittently (read as: no
discernable pattern at this point), HTTP requests from
users result in a 'Server Application / Error.' The user
requests a page and the non-custom, Microsoft standard
error page is shown with the above message. We have
verified that the login page is available even after users
get this error. However, as soon as they attempt to
establish a session (via login), the same error is
displayed.

Anyone have any ideas? I've done the standard performance
monitor investigation and haven't turned up a single
clue. The condition exists regardless of app server
loading (i.e. # of users, length of queries, etc.)

Thanks...John

 

[Tommy]

How is your web application's session configured? "InProc",
"StateServer" ...?

Does it only happen to one web application, or does it happen to all
web application on the web server?

Tommy,

 

[Cheung, Jeffrey Jing-Yen]

Have you checked the event log to see if maybe the ASP.NET application
was restarted? This is similar to my problem, but mine involves a clear
memory leak somewhere. If indeed you find that your ASP.NET application
was restarted, you may try to store your session state in SQL server
instead as I believe that session state is kept even after ASP.NET recycles.

Regards,

Jeff Cheung

 

[John Wilcher]

Tommy, thanks for the reply.

It's an out of process application and is the only application running on
the server. It's a significant app and requires the whole box. Great
question and thanks for any help you can provide.

John

 

[John Wilcher]

Thanks for the reply, Jeff.

There are no bread crumbs in the system, application or security logs.
That's what has me stumped about this problem.

I've monitored the server around the clock and watched it closely while I'm
at the office. There are not indications that the problem is linked to a
specific parameter.

Thanks for any help you can provide...John