How does application pool recycling work in Asp.net IIS6?

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Application pool recycling in IIS6 works by shutting down and restarting the application pool at specified intervals or under certain conditions.

The process of recycling includes stopping all running worker processes and unloading the associated application domain from memory. This releases any resources held by the application and ensures a clean slate for the new application domain.

The specific configuration options for recycling are available in the IIS6 management console and can be set to occur based on factors such as time intervals, CPU usage thresholds, or memory usage thresholds.

During the recycling process, any active requests to the application are allowed to complete before the process is terminated. Once the new application domain is loaded and running, new requests can be processed normally.

Overall, application pool recycling is a useful tool for maintaining the stability and performance of an application by periodically restarting the application to clear out any lingering issues or errors.