Troubleshooting ASP.Net Application Pools on IIS6

I have several sites running on Windows 2003 Server in true IIS 6 mode
with Application pools. One site has about 9 Virtual Directories in
it that are all configured to run as applications. Each of these have
a dedicated application pool with all different memory settings in the
Memory Recycling area.

The applications are all .Net based applications. They are all pretty
frequently used apps and as a rule of thumb, we assigned more memory
in the app pools to the busier sites and less to the least busy sites.

Here's the deal. Every once in a while, the application will hang up
and not respond. Once I recycle the application, it's fine.
I don't really get a whole lot of info from the developers other than
"The site is hung up" The only thing I see is stuff like this in the
eventlog. This is usually AFTER I recycle the application and it
start working again.

----------------
Event Type:Warning
Event Source:W3SVC
Event Category:None
Event ID:1013
Date:11/18/2004
Time:2:37:21 PM
User:N/A
Computer:<server name>
Description:
A process serving application pool <app name>' exceeded time limits
during shut down. The process id was '344'.

For more information, see Help and Support Center at
http://go.microsoft.com/fwlink/events.asp.

----------------

I'd like to know what I can do to troubleshoot this. Is there any
other logs I can check? Are there any diagnostic tools that I can
check?Hello,

Please take a look at following articles. These might be helpful in your
case.

828222 How to generate a dump file when ASP.NET deadlocks in IIS 6.0
http://support.microsoft.com/?id=828222

821268 PRB: Contention, poor performance, and deadlocks when you make Web
http://support.microsoft.com/?id=821268

HTH.
Thanks.
Ganesh Anekar
Microsoft Developer Support
Internet Information Server
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"dreamlinetheater" <dreamlinetheater@.hotmail.com> wrote in message
news:e153da91.0411181313.145fa674@.posting.google.c om...
>I have several sites running on Windows 2003 Server in true IIS 6 mode
> with Application pools. One site has about 9 Virtual Directories in
> it that are all configured to run as applications. Each of these have
> a dedicated application pool with all different memory settings in the
> Memory Recycling area.
> The applications are all .Net based applications. They are all pretty
> frequently used apps and as a rule of thumb, we assigned more memory
> in the app pools to the busier sites and less to the least busy sites.
> Here's the deal. Every once in a while, the application will hang up
> and not respond. Once I recycle the application, it's fine.
> I don't really get a whole lot of info from the developers other than
> "The site is hung up" The only thing I see is stuff like this in the
> eventlog. This is usually AFTER I recycle the application and it
> start working again.
> ----------------
> Event Type: Warning
> Event Source: W3SVC
> Event Category: None
> Event ID: 1013
> Date: 11/18/2004
> Time: 2:37:21 PM
> User: N/A
> Computer: <server name>
> Description:
> A process serving application pool <app name>' exceeded time limits
> during shut down. The process id was '344'.
> For more information, see Help and Support Center at
> http://go.microsoft.com/fwlink/events.asp.
> ----------------
>
> I'd like to know what I can do to troubleshoot this. Is there any
> other logs I can check? Are there any diagnostic tools that I can
> check?