Tag Name reference_age
Usage reference_age time-units

Description
As a part of normal operation, Squid performs Least Recently Used removal of cached objects. The LRU age for removal is computed dynamically, based on the amount of disk space in use. The dynamic value can be seen in the Cache Manager ‘info’ output.

The ‘reference_age’ parameter defines the maximum LRU age

Default reference_age 1 year

Example
For example, setting reference_age to ’1 week’ will cause objects to be removed, if they have not been accessed for a week or more. The default value is one year.

Specify a number here, followed by units of time. For example:

1 week
3.5 days
4 months
2.2 hours

Caution
This parameter is not used when using the enhanced replacement policies, GDSH or LFUDA.