In RHQ and JBossON 2, that is built on top of RHQ, you have the possibility to graph metrics for (more or less) arbitrary time ranges.

But sometimes the display is not moving and not showing any data that you'd expect to see.

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Here's an interesting use case for DynaGroups.

One customer might have a few dozen/hundred JBoss AS instances, but only a handful of them have a web app deployed called, say, "someapp.war". They want to know what set of expressions they could use to maintain a group of all appservers that have that webapp deployed.

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... But I also found the time to work on some black projects as well. Augeas is a Red Hat project, providing APIs for configuring various Linux based services, such as GRUB, /etc/hosts, and yum and apt repositories. Once the base Augeas connection was in place, I was able to pretty quickly add a number of these services to RHQ. ...

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