SharePoint IIS hold the requests even after restart.

Alice01 46 Reputation points
2022-02-02T16:45:50.183+00:00

I got an error/busy loading site during high traffics in SharePoint IIS server. I tried restart the site, application pool,IIS, even sometime whole server restart.
But after restart SarePoint IIS hold the pending requests in worker processes which makes CPU/Memory maximum utilization and got an error/busy loading.
Why is this happening? Why is SharePoint IIS is not flushing the pending requests after restart.

Please help.

Internet Information Services
SharePoint Development
SharePoint Development
SharePoint: A group of Microsoft Products and technologies used for sharing and managing content, knowledge, and applications.Development: The process of researching, productizing, and refining new or existing technologies.
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  1. Bruce (SqlWork.com) 54,866 Reputation points
    2022-02-02T18:52:46.13+00:00

    IIS tries to be graceful on a restart. It creates a new app domain, and sends new requests to the new domain, and allow the old domain to process the pending requests before shutting it down.

    if you want to kill the pending requests, stop the app pool, then restart.