ASP.NET: IIS Application Pool Crashes

Hello Folks,

I've one application (ASP.NET) running over IIS.

It does crashes once a week due to application pool.

Could you please share possible reasons for crash?

Best Regards,
Mohit Pandit
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How did you know it's because of application pool?
Do you have error message?
MohitPanditAuthor Commented:
Yes, in event viewer, I got below messages

A process serving application pool 'ApplicationName' exceeded time limits during shut down. The process id was '22345'
A process serving application pool 'ApplicationName' exceeded time limits during shut down. The process id was '11234'.
Try increasing Application Pool -> Advance Settings -> Shutdown Time Limit (Default value is 90).
If the problem persist, try looking for some long operations or bug in your software.
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MohitPanditAuthor Commented:
Is there any tool to find long operations to identify these kind of glitches?
Well, you can use a profiler but that needs some setup.
I suggest looking into IIS log first.
Look for Url with
- High Time Takens  (may need extra configuration)
- Error Code that starts with 5; ex. 504
- Url that was called near the time of error

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Kamal KhaleefaInformation Security SpecialistCommented:
try to review your code and make sure every connection with database is open & closed Properly

if you miss once connection open and didn't close it will ends up with hanging your application.

MohitPanditAuthor Commented:
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