I've seen a few people ask if RHQ has this capability, so I blogged
about it and put together a flash demo to show people how it works.
This is the feature where you want to execute your own custom scripts on
a remote machine when an alert is triggered (the use case is something
along the lines of having the script try to reconfigure something or
start/stop some server when an abnormal condition occurs).
blog:
http://management-platform.blogspot.com/2011/02/alerting-and-remote-scrip...
demo:
http://www.rhq-project.org/display/JOPR2/Demo-AlertsRemoteScriptExecution