[Building Sakai] anybody know how to clear a stuck quartz job? [EVALSYS]

[Charles Hedrick]

We're not getting emails sent by EVALSYS. I believe the problem is that Quartz is stuck. QRTZ_FIRED_TRIGGERS shows org.sakaiproject.component.app.scheduler.ScheduledInvocationManagerImpl.runner executing, with the fired time not changing. Is there a way to clear this? Can I just clear the fired triggers table, or do we need something more?