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Web Proxy Caching > Ensuring cached object freshness > HTTP object freshness > Modifying the aging factor for freshness computations
Modifying the aging factor for freshness computations
Help | Content Gateway | Version 8.1.x
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).
3.
Save and close the file.
4.
To apply the changes, run the following command from the Content Gateway bin directory:
content_line -x

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