.. _best_prac_trim_cache:

Automated Database Cache Cleanup
--------------------------------

.. _19.3.2|VOSS-703:


From VOSS-4-UC release 19.3.2 onwards, it is no longer necessary to schedule or manually
manage the database cache optimization using the **voss trim-cache** command. This command
will be removed from release 20.1.1 onwards.

System Alerts raised for this and the warning on the platform CLI login:
``CACHE DATABASE MAINTENANCE NOT SCHEDULED`` can be ignored from VOSS-4-UC release 19.3.2 onwards.

A resource history is now maintained as a series of resource differences and is automatically 
optimized.

.. note::
  
  A minimum retention period of 7 days is applied to resource differences in the resource history.