Yesterday I was at 11th Java Forum Stuttgart (JFS), a regional Java conference with 1100 attendees. The JFS featured 42 sessions in 6 parallel tracks in one day.
I had a talk and a BOF session - both of course showing RHQ in one way or other
In trying to find better ways to view large amounts of data I stumbled across a project called TreeViz that has some nice ways to render hierarchical data. I hooked a few of these up to RHQ to help show the availability of thousands of resources in a single snapshot. One I really like is the sunburst display.
I have just committed an experimental SNMP trapd plugin for RHQ. Currently it is only able to listen for V1 traps at a fixed address, but I am sure this will change Incoming traps will be forwarded as Events into the events subsystem, so you can view them in the GUI and even define alarms on them (that trigger SNMP traps
This posting also shows how to handle events within RHQ plugins.
... I mentioned in my last post that I had started working on integration with Augeas. Initially, it was just kinda slopped together to be shown off at Red Hat Summit. It got some good feedback, so in my downtime I've been working on cleaning up what we have. ...
I've gone ahead and committed a new plugin for RHQ that provides monitoring of a Hudson continuous integration server. It's not a particularly complex plugin, but it gives a decent example of using JSON within a plugin.
When writing a plugin for RHQ, one has to write the plugin descriptor. While this is not complicated, it still leaves some room for errors. The good thing (but you will hate it, when you run into it) is that when deploying the plugin, its descriptor will be validated against the defining XML Schema - and errors will reported.
. The JFS featured 42 sessions in 6 parallel tracks in one day. 
Incoming traps will be forwarded as Events into the events subsystem, so you can view them in the GUI and even define alarms on them (that trigger SNMP traps 
