Recycling application pools
This task applies only to computers running Internet Information Services (IIS) 7 or later with Windows Server.
You should recycle processes periodically, for both stability and performance reasons. Over long periods of time, leaked resources and system or application problems might affect Web server throughput. You should balance this with recycling too often, however, since the cost of stopping the worker process, reloading pages and re-obtaining resources and data might override the benefits of a recycle. If there is high load on the interviewing server, you might need to configure your application pool to recycle once a day. If there is low load, you can set the application pool to recycle once a week, or disable it completely. By default application pool recycling is disabled for the application pool.
You should also record when an application pool recycles, because this information might be useful when investigating an issue.
To set up recycling for the application pool
1 Open Internet Information Services Manager.
2 Expand the server node, and then select the Application Pools node.
3 In the Application Pools list, right‑click SPSSmrInterviewPool, and then click Advanced Settings.
The SPSSmrInterviewPool AppPool Advanced Settings dialog opens.
4 In the Recycling section, select the type of recycling you want, and then enter the additional information required.
5 In the Generate Recycle Event Log Entry section, check that a recycle event log will be generated for each type of recycle.
6 Click OK.
7 Repeat for any other interviewing tier application pools, and then close IIS Manager.
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