From cb7e697cfa8c1e0fe94b045d4b8beffcea21020c Mon Sep 17 00:00:00 2001 From: Pradyumna Kaushik Date: Sat, 14 Jan 2017 16:20:58 -0500 Subject: [PATCH] First Fit SortedWatts ClassMapWatts with Proactive Clusterwide Capping. --- ...firstfitSortedWattsClassMapWattsProacCC.go | 389 ++++++++++++++++++ 1 file changed, 389 insertions(+) create mode 100644 schedulers/firstfitSortedWattsClassMapWattsProacCC.go diff --git a/schedulers/firstfitSortedWattsClassMapWattsProacCC.go b/schedulers/firstfitSortedWattsClassMapWattsProacCC.go new file mode 100644 index 0000000..09a51cd --- /dev/null +++ b/schedulers/firstfitSortedWattsClassMapWattsProacCC.go @@ -0,0 +1,389 @@ +package schedulers + +import ( + "bitbucket.org/sunybingcloud/electron/def" + "fmt" + "github.com/golang/protobuf/proto" + mesos "github.com/mesos/mesos-go/mesosproto" + "github.com/mesos/mesos-go/mesosutil" + sched "github.com/mesos/mesos-go/scheduler" + "log" + "strings" + "time" + "sort" + "os" + "bitbucket.org/sunybingcloud/electron/pcp" + "sync" + "math" + "bitbucket.org/sunybingcloud/electron/constants" + "bitbucket.org/sunybingcloud/electron/rapl" +) + +// electron scheduler implements the Scheduler interface +type FirstFitSortedWattsClassMapWattsProacCC struct { + base // Type embedded to inherit common features. + tasksCreated int + tasksRunning int + tasks []def.Task + metrics map[string]def.Metric + running map[string]map[string]bool + taskMonitor map[string][]def.Task + availablePower map[string]float64 + totalPower map[string]float64 + ignoreWatts bool + capper *pcp.ClusterwideCapper + ticker *time.Ticker + recapTicker *time.Ticker + isCapping bool // indicate whether we are currently performing cluster-wide capping. + isRecapping bool // indicate whether we are currently performing cluster-wide recapping. + + // First set of PCP values are garbage values, signal to logger to start recording when we're + // about to schedule a new task + RecordPCP bool + + // This channel is closed when the program receives an interrupt, + // signalling that the program should shut down. + Shutdown chan struct{} + // This channel is closed after shutdown is closed, and only when all + // outstanding tasks have been cleaned up + Done chan struct{} + + // Controls when to shutdown pcp logging + PCPLog chan struct{} + + schedTrace *log.Logger +} + +// New electron scheduler +func NewFirstFitSortedWattsClassMapWattsProacCC(tasks []def.Task, ignoreWatts bool, schedTracePrefix string) *FirstFitSortedWattsClassMapWattsProacCC { + sort.Sort(def.WattsSorter(tasks)) + + logFile, err := os.Create("./" + schedTracePrefix + "_schedTrace.log") + if err != nil { + log.Fatal(err) + } + + s := &FirstFitSortedWattsClassMapWattsProacCC{ + tasks: tasks, + ignoreWatts: ignoreWatts, + Shutdown: make(chan struct{}), + Done: make(chan struct{}), + PCPLog: make(chan struct{}), + running: make(map[string]map[string]bool), + taskMonitor: make(map[string][]def.Task), + availablePower: make(map[string]float64), + totalPower: make(map[string]float64), + RecordPCP: false, + capper: pcp.GetClusterwideCapperInstance(), + ticker: time.NewTicker(10 * time.Second), + recapTicker: time.NewTicker(20 * time.Second), + isCapping: false, + isRecapping: false, + schedTrace: log.New(logFile, "", log.LstdFlags), + + } + return s +} + +// mutex +var ffswClassMapWattsProacCCMutex sync.Mutex + +func (s *FirstFitSortedWattsClassMapWattsProacCC) newTask(offer *mesos.Offer, task def.Task, newTaskClass string) *mesos.TaskInfo { + taskName := fmt.Sprintf("%s-%d", task.Name, *task.Instances) + s.tasksCreated++ + + if !s.RecordPCP { + // Turn on logging. + s.RecordPCP = true + time.Sleep(1 * time.Second) // Make sure we're recording by the time the first task starts + } + + // If this is our first time running into this Agent + if _, ok := s.running[offer.GetSlaveId().GoString()]; !ok { + s.running[offer.GetSlaveId().GoString()] = make(map[string]bool) + } + + // Setting the task ID to the task. This is done so that we can consider each task to be different, + // even though they have the same parameters. + task.SetTaskID(*proto.String("electron-" + taskName)) + // Add task to the list of tasks running on the node. + s.running[offer.GetSlaveId().GoString()][taskName] = true + if len(s.taskMonitor[*offer.Hostname]) == 0 { + s.taskMonitor[*offer.Hostname] = []def.Task{task} + } else { + s.taskMonitor[*offer.Hostname] = append(s.taskMonitor[*offer.Hostname], task) + } + + resources := []*mesos.Resource{ + mesosutil.NewScalarResource("cpus", task.CPU), + mesosutil.NewScalarResource("mem", task.RAM), + } + + if !s.ignoreWatts { + resources = append(resources, mesosutil.NewScalarResource("watts", task.ClassToWatts[newTaskClass])) + } + + return &mesos.TaskInfo{ + Name: proto.String(taskName), + TaskId: &mesos.TaskID{ + Value: proto.String("electron-" + taskName), + }, + SlaveId: offer.SlaveId, + Resources: resources, + Command: &mesos.CommandInfo{ + Value: proto.String(task.CMD), + }, + Container: &mesos.ContainerInfo{ + Type: mesos.ContainerInfo_DOCKER.Enum(), + Docker: &mesos.ContainerInfo_DockerInfo{ + Image: proto.String(task.Image), + Network: mesos.ContainerInfo_DockerInfo_BRIDGE.Enum(), // Run everything isolated + }, + }, + } +} + +func (s *FirstFitSortedWattsClassMapWattsProacCC) Disconnected(sched.SchedulerDriver) { + // Need to stop the capping process + s.ticker.Stop() + s.recapTicker.Stop() + ffswClassMapWattsProacCCMutex.Lock() + s.isCapping = false + ffswClassMapWattsProacCCMutex.Unlock() + log.Println("Framework disconnected with master") +} + +// go routine to cap the entire cluster in regular intervals of time +var ffswClassMapWattsProacCCCapValue = 0.0 // initial value to indicate that we haven't capped the cluster yet. +var ffswClassMapWattsProacCCNewCapValue = 0.0 // newly computed cap value +func (s *FirstFitSortedWattsClassMapWattsProacCC) startCapping() { + go func() { + for { + select { + case <-s.ticker.C: + // Need to cap the cluster only if new cap value different from the old cap value. + // This way we don't unnecessarily cap the cluster. + ffswClassMapWattsProacCCMutex.Lock() + if s.isCapping { + if int(math.Floor(ffswClassMapWattsProacCCNewCapValue+0.5)) != int(math.Floor(ffswClassMapWattsProacCCCapValue+0.5)) { + // updating cap value + ffswClassMapWattsProacCCCapValue = ffswClassMapWattsProacCCNewCapValue + if ffswClassMapWattsProacCCCapValue > 0.0 { + for _, host := range constants.Hosts { + // Rounding cap value to the nearest int + if err := rapl.Cap(host, "rapl", int(math.Floor(ffswClassMapWattsProacCCCapValue+0.5))); err != nil { + log.Println(err) + } + } + log.Printf("Capped the cluster to %d", int(math.Floor(ffswClassMapWattsProacCCCapValue+0.5))) + } + } + } + ffswClassMapWattsProacCCMutex.Unlock() + } + } + }() +} + +// go routine to recap the entire cluster in regular intervals of time. +var ffswClassMapWattsProacCCRecapValue = 0.0 // The cluster-wide cap value when recapping. +func (s *FirstFitSortedWattsClassMapWattsProacCC) startRecapping() { + go func() { + for { + select { + case <-s.recapTicker.C: + ffswClassMapWattsProacCCMutex.Lock() + // If stopped performing cluster wide capping, then we need to recap + if s.isRecapping && ffswClassMapWattsProacCCRecapValue > 0.0 { + for _, host := range constants.Hosts { + // Rounding the cap value to the nearest int + if err := rapl.Cap(host, "rapl", int(math.Floor(ffswClassMapWattsProacCCRecapValue+0.5))); err != nil { + log.Println(err) + } + } + log.Printf("Recapping the cluster to %d", int(math.Floor(ffswClassMapWattsProacCCRecapValue+0.5))) + } + // Setting recapping to false + s.isRecapping = false + ffswClassMapWattsProacCCMutex.Unlock() + } + } + }() +} + +// Stop the cluster wide capping +func (s *FirstFitSortedWattsClassMapWattsProacCC) stopCapping() { + if s.isCapping { + log.Println("Stopping the cluster-wide capping.") + s.ticker.Stop() + ffswClassMapWattsProacCCMutex.Lock() + s.isCapping = false + s.isRecapping = true + ffswClassMapWattsProacCCMutex.Unlock() + } +} + +// Stop the cluster wide recapping +func (s *FirstFitSortedWattsClassMapWattsProacCC) stopRecapping() { + // If not capping, then definitely recapping. + if !s.isCapping && s.isRecapping { + log.Println("Stopping the cluster-wide re-capping.") + s.recapTicker.Stop() + ffswClassMapWattsProacCCMutex.Lock() + s.isRecapping = false + ffswClassMapWattsProacCCMutex.Unlock() + } +} + +func (s *FirstFitSortedWattsClassMapWattsProacCC) ResourceOffers(driver sched.SchedulerDriver, offers []*mesos.Offer) { + log.Printf("Received %d resource offers", len(offers)) + + // retrieving the available power for all the hosts in the offers. + for _, offer := range offers { + _, _, offerWatts := OfferAgg(offer) + s.availablePower[*offer.Hostname] = offerWatts + // setting total power if the first time + if _, ok := s.totalPower[*offer.Hostname]; !ok { + s.totalPower[*offer.Hostname] = offerWatts + } + } + + for host, tpower := range s.totalPower { + log.Printf("TotalPower[%s] = %f", host, tpower) + } + + for _, offer := range offers { + select { + case <-s.Shutdown: + log.Println("Done scheduling tasks: declining offer on [", offer.GetHostname(), "]") + driver.DeclineOffer(offer.Id, longFilter) + + log.Println("Number of tasks still running: ", s.tasksRunning) + continue + default: + } + + offerCPU, offerRAM, offerWatts := OfferAgg(offer) + + // First fit strategy + taken := false + for i, task := range s.tasks { + // Check host if it exists + if task.Host != "" { + // Don't take offer if it doens't match our task's host requirement. + if !strings.HasPrefix(*offer.Hostname, task.Host) { + continue + } + } + + // Retrieving the node class from the offer + var nodeClass string + for _, attr := range offer.GetAttributes() { + if attr.GetName() == "class" { + nodeClass = attr.GetText().GetValue() + } + } + + // Decision to take the offer or not + if (s.ignoreWatts || (offerWatts >= task.ClassToWatts[nodeClass])) && + (offerCPU >= task.CPU) && (offerRAM >= task.RAM) { + + // Capping the cluster if haven't yet started + if !s.isCapping { + ffswClassMapWattsProacCCMutex.Lock() + s.isCapping = true + ffswClassMapWattsProacCCMutex.Unlock() + s.startCapping() + } + + fmt.Println("Watts being used: ", task.ClassToWatts[nodeClass]) + tempCap, err := s.capper.FCFSDeterminedCap(s.totalPower, &task) + if err == nil { + ffswClassMapWattsProacCCMutex.Lock() + ffswClassMapWattsProacCCNewCapValue = tempCap + ffswClassMapWattsProacCCMutex.Unlock() + } else { + log.Println("Failed to determine new cluster-wide cap: ") + log.Println(err) + } + + log.Println("Co-Located with: ") + coLocated(s.running[offer.GetSlaveId().GoString()]) + + taskToSchedule := s.newTask(offer, task, nodeClass) + s.schedTrace.Print(offer.GetHostname() + ":" + taskToSchedule.GetTaskId().GetValue()) + log.Printf("Starting %s on [%s]\n", task.Name, offer.GetHostname()) + driver.LaunchTasks([]*mesos.OfferID{offer.Id}, []*mesos.TaskInfo{taskToSchedule}, defaultFilter) + + taken = true + fmt.Println("Inst: ", *task.Instances) + *task.Instances-- + if *task.Instances <= 0 { + // All instances of task have been scheduled, remove it + s.tasks = append(s.tasks[:i], s.tasks[i+1:]...) + + if len(s.tasks) == 0 { + log.Println("Done scheduling all tasks") + // Need to stop the cluster-wide capping as there aren't any more tasks to schedule + s.stopCapping() + s.startRecapping() // Load changes after every task finishes and hence, we need to change the capping of the cluster + close(s.Shutdown) + } + } + break // Offer taken, move on + } + } + + // If there was no match for the task + if !taken { + fmt.Println("There is not enough resources to launch a task:") + cpus, mem, watts := OfferAgg(offer) + + log.Printf("\n", cpus, mem, watts) + driver.DeclineOffer(offer.Id, defaultFilter) + } + } +} + +func (s *FirstFitSortedWattsClassMapWattsProacCC) StatusUpdate(driver sched.SchedulerDriver, status *mesos.TaskStatus) { + log.Printf("Received task status [%s] for task [%s]", NameFor(status.State), *status.TaskId.Value) + + if *status.State == mesos.TaskState_TASK_RUNNING { + s.tasksRunning++ + } else if IsTerminal(status.State) { + delete(s.running[status.GetSlaveId().GoString()], *status.TaskId.Value) + // Need to remove the task from the window + s.capper.TaskFinished(*status.TaskId.Value) + // Determining the new cluster wide recap value + //tempCap, err := s.capper.NaiveRecap(s.totalPower, s.taskMonitor, *status.TaskId.Value) + tempCap, err := s.capper.CleverRecap(s.totalPower, s.taskMonitor, *status.TaskId.Value) + if err == nil { + // If new determined cap value is different from the current recap value, then we need to recap + if int(math.Floor(tempCap+0.5)) != int(math.Floor(ffswClassMapWattsProacCCRecapValue+0.5)) { + ffswClassMapWattsProacCCRecapValue = tempCap + ffswClassMapWattsProacCCMutex.Lock() + s.isRecapping = true + ffswClassMapWattsProacCCMutex.Unlock() + log.Printf("Determined re-cap value: %f\n", ffswClassMapWattsProacCCRecapValue) + } else { + ffswClassMapWattsProacCCMutex.Lock() + s.isRecapping = false + ffswClassMapWattsProacCCMutex.Unlock() + } + } else { + log.Println(err) + } + + s.tasksRunning-- + if s.tasksRunning == 0 { + select { + case <-s.Shutdown: + // Need to stop the cluster-wide recapping + s.stopRecapping() + close(s.Done) + default: + } + } + } + log.Printf("DONE: Task status [%s] for task[%s]", NameFor(status.State), *status.TaskId.Value) +}