Now that the RHQ REST api can expose raw numerical metrics for the last 7 days, it is possible to create additional graphs for numerics. As before I have used D3.js to create the following graphs. The source is now in RHQ git master and will also be in RHQ 4.3.
This needs some more work, as the x-axis labeling does not yet take the exact start time into account.
Also time spans that have no values (e.g. because agent is down) should not show a straight line, but no line at all for that period. There should perhaps be a legend about the colors as well.
If anyone is interested to add tooltips for the values or fix the label for the second graph, please ping me.