The sum column seems to be missing from the "metric data" sub-tab of the visibility sub-tab of the monitoring tab. This is quite useful information
Are we sure now, that it wil be computed correctly? See http://jira.jboss.com/jira/browse/JBNADM-2626
We should be able to get this in the query accurately.
Pushing to next release... not critical
This bug was previously known as http://jira.rhq-project.org/browse/RHQ-184