Modifying the aging factor for freshness computations

Web Proxy Caching > Ensuring cached object freshness > HTTP object freshness > Modifying the aging factor for freshness computations

If an object does not contain any expiration information, Content Gateway can estimate its freshness from the Last-Modified and Date headers. By default, the proxy stores an object for 10% of the time that elapsed since it last changed. You can increase or reduce the percentage.

1.	Open the records.config file located in the Content Gateway config directory.

2.	Edit the following variable:


Variable	Description
proxy.config.http.cache. heuristic_lm_factor	Specify the aging factor for freshness computations. The default value is 0.10 (10 percent).