I'm not exactly sure where do post this but here goes.

I have JBoss set up in a cluster on several machines.

I need to run a job/service based on a configurable schedule (daily, twice a day, or whatever).

The job/service need to have high availability (it will cause undesirable effects on my job security if it does fail :) ).

Furthermore, this job should only run on one of the machines at any given time, however, it may run on any of the machines.

I can set up some sort of scheduler on each of the JBoss instances but how do I make sure that only one job is run at a given time.

I'm not quite sure how to solve this problem :(