IIS - recycle appool - due to worker process reached its allowed processing time limit RRS feed

  • Question

  • am getting below error while check in event log,

    A worker process with process id of '15052' serving application pool 'DefaultAppPool' has requested a recycle because the worker process reached its allowed processing time limit.

    but required url throw error Object reference not set to instance of object"

    • what is the cause if particular pool recycle very often due to this worker process reach process limit?
    • what is the mean of event occurrence count?  

    Tuesday, December 4, 2018 5:53 AM

All replies


    Thank you for posting here.

    Since your question is more relayed to IIS, you could post a new thread in IIS forum for suitable support.


    The CLR Forum discuss and ask questions about .NET Framework Base Classes (BCL) such as Collections, I/O, Regigistry, Globalization, Reflection. Also discuss all the other Microsoft libraries that are built on or extend the .NET Framework, including Managed Extensibility Framework (MEF), Charting Controls, CardSpace, Windows Identity Foundation (WIF), Point of Sale (POS), Transactions.

    Best Regards,


    MSDN Community Support
    Please remember to click "Mark as Answer" the responses that resolved your issue, and to click "Unmark as Answer" if not. This can be beneficial to other community members reading this thread. If you have any compliments or complaints to MSDN Support, feel free to contact MSDNFSF@microsoft.com.

    Wednesday, December 5, 2018 8:04 AM
  • thanks zang..   i  will post in IIS forms
    Friday, December 7, 2018 3:27 AM