Example #1
0
// ResourceOffers handles the Resource Offers
func (s *eremeticScheduler) ResourceOffers(driver sched.SchedulerDriver, offers []*mesos.Offer) {
	log.Tracef("Received %d resource offers", len(offers))
	var offer *mesos.Offer

loop:
	for len(offers) > 0 {
		select {
		case <-s.shutdown:
			log.Info("Shutting down: declining offers")
			break loop
		case tid := <-s.tasks:
			log.Debugf("Trying to find offer to launch %s with", tid)
			t, _ := database.ReadTask(tid)
			offer, offers = matchOffer(t, offers)

			if offer == nil {
				log.Warnf("Could not find a matching offer for %s", tid)
				TasksDelayed.Inc()
				go func() { s.tasks <- tid }()
				break loop
			}

			log.Debugf("Preparing to launch task %s with offer %s", tid, offer.Id.GetValue())
			t, task := s.newTask(t, offer)
			database.PutTask(&t)
			driver.LaunchTasks([]*mesos.OfferID{offer.Id}, []*mesos.TaskInfo{task}, defaultFilter)
			TasksLaunched.Inc()
			QueueSize.Dec()

			continue
		default:
			break loop
		}
	}

	log.Trace("No tasks to launch. Declining offers.")
	for _, offer := range offers {
		driver.DeclineOffer(offer.Id, defaultFilter)
	}
}
Example #2
0
// ResourceOffers handles the Resource Offers
func (s *eremeticScheduler) ResourceOffers(driver sched.SchedulerDriver, offers []*mesos.Offer) {
	log.Tracef("Received %d resource offers", len(offers))
	for _, offer := range offers {
		select {
		case <-s.shutdown:
			log.Infof("Shutting down: declining offer on [%s]", offer.Hostname)
			driver.DeclineOffer(offer.Id, defaultFilter)
			continue
		case tid := <-s.tasks:
			log.Debugf("Preparing to launch task %s with offer %s", tid, offer.Id.GetValue())
			t, _ := database.ReadTask(tid)
			task := s.newTask(offer, &t)
			database.PutTask(&t)
			driver.LaunchTasks([]*mesos.OfferID{offer.Id}, []*mesos.TaskInfo{task}, defaultFilter)
			continue
		default:
		}

		log.Trace("No tasks to launch. Declining offer.")
		driver.DeclineOffer(offer.Id, defaultFilter)
	}
}