Application Pool Recycling Scheduling

Application pool

Application pools are used to separate sets of IIS worker processes that share the same configuration and application boundaries.

Application pools used to isolate our web application for better security, reliability, and availability and performance and keep running with out impacting each

other.

Worker process

Generally, each Application Pool corresponds to one worker process. A worker process is a windows process (w3wp.exe) which runs Web Applications, and is responsible

for handling requests sent to a Web Server for a specific application pool. The worker process serves as the process boundary that separates each application pool so

that when one worker process or application is having an issue or recycles, other applications or worker processes are not affected. One Application Pool can have multiple worker process Also.

Main Point to Remember: 

1. Isolation of Different Web Application

2. Individual worker process for different web application

3. More reliably web application

4. Better Performance

Application Pool Recycling

In case if we recycle the application pool then the worker process of that pool will be restarted. We are recycling a application pool due to application

crashes or hangs and to discontinue any irrelevant process with in an application or memory leak.

By default IIS will use overlapped recycle method, When the worker process terminates, a new one is started simultaneously. This type of recycling is called

overlapped recycling.

Application Pool Recycling Scheduling

Scheduling an application pool means i want to restart the worker process at any specific time. How to schedule recycling an application is given below image.

first go to Start->run->inetmgr it will open up IIS then select your corresponding application pool where your application is running. Now on right side of this window

you will find edit application pool as shown in the picture below.