> Never run clustering on separate machines, unless their clocks are synchronized using some form of time-sync service (daemon) that runs very regularly (the clocks must be within a second of each other).
That is a scary warning.
What exactly can happen when the clocks are not completely synched?
And does this really only affect a cluster? How about an RMI server with clients that schedule jobs with time stamps that are off?
What I really want to know is, is it possible to use Quartz in an environment where you are unable to synchronize the clocks to such precision? (We cannot necessarily get our clients to do so.) Perhaps by setting clusterCheckInInterval to a larger value?