Forgot a 10^9 multiplier when computing initial offset of periodic tasks

scheduler/scheduler.go

@@ -23,7 +23,7 @@ func New() *Scheduler {
 func (s *Scheduler) Add(event PeriodicEvent) {
 	// Schedule the task at some random point in the future during its
 	// first interval, so that all tasks are scattered equally.
-	intervalFrac := time.Duration(event.Interval().Seconds() * rand.Float64())
+	intervalFrac := time.Duration(event.Interval().Seconds()*rand.Float64()) * time.Second
 	when := time.Now().Add(intervalFrac)
 	s.scheduleCh <- &timerData{
 		event: event,