Data Volume on the Admin Tab appears incorrect after applying new volume license.

Problem

After applying a new volume license, the Data Volume being reported on the Admin Tab is reporting a significant overage in usage:

This prevents jobs from running.

Cause

Applying a new volume license requires that usage be recalculated.  This happens on a predefined interval set by the following property within the default.properties file:

datavolume.calculation.period=1h

If the timer for the above interval just passed - they may be up to a 1 hour wait before data volumes are recalculated properly.  

Solution

It is not advised to reduce the value of datavolume.calculation.period.  If there are a significant number of jobs - constantly recalculating the used Data Volume may have performance implications.

Since jobs will not run until the Data Volume calculation is triggered and completed, it's possible to get a significantly faster restoration of service by restarting the Datameer conductor.  A recalculation is triggered 1 minute after conductor start.