@Override
public void run()
{
NotificationContext changeContext = new NotificationContext(_manager);
changeContext.setType(NotificationContext.Type.CALLBACK);
ClusterEvent event = new ClusterEvent("periodicalRebalance");
event.addAttribute("helixmanager", changeContext.getManager());
event.addAttribute("changeContext", changeContext);
List<ZNRecord> dummy = new ArrayList<ZNRecord>();
event.addAttribute("eventData", dummy);
// Should be able to process
handleEvent(event);
}