From 678c113f0ae149cce90fd08390c824af73359b4d Mon Sep 17 00:00:00 2001 From: Pradyumna Kaushik Date: Fri, 6 Jan 2017 16:01:18 -0800 Subject: [PATCH] Proactive Clusterwide Capping with BinPackedSortedWattsClassToWatts --- schedulers/bpswClassMapWattsProacCC.go | 428 +++++++++++++++++++++++++ 1 file changed, 428 insertions(+) create mode 100644 schedulers/bpswClassMapWattsProacCC.go diff --git a/schedulers/bpswClassMapWattsProacCC.go b/schedulers/bpswClassMapWattsProacCC.go new file mode 100644 index 0000000..1b62a66 --- /dev/null +++ b/schedulers/bpswClassMapWattsProacCC.go @@ -0,0 +1,428 @@ +package schedulers + +import ( + "bitbucket.org/sunybingcloud/electron/constants" + "bitbucket.org/sunybingcloud/electron/def" + "bitbucket.org/sunybingcloud/electron/pcp" + "bitbucket.org/sunybingcloud/electron/rapl" + "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" + "math" + "strings" + "sync" + "time" + "sort" +) + +// Decides if to take an offer or not +func (*BPSWClassMapWattsProacCC) takeOffer(offer *mesos.Offer, task def.Task) bool { + cpus, mem, watts := OfferAgg(offer) + + // TODO: Insert watts calculation here instead of taking them as parameter + + if cpus >= task.CPU && mem >= task.RAM && watts >= task.Watts { + return true + } + + return false +} + +type BPSWClassMapWattsProacCC struct { + 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{} +} + +// New electron scheduler +func NewBPSWClassMapWattsProacCC(tasks []def.Task, ignoreWatts bool) *BPSWClassMapWattsProacCC { + sort.Sort(def.WattsSorter(tasks)) + + s := &BPSWClassMapWattsProacCC{ + 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, + } + return s +} + +// mutex +var bpswClassMapWattsProacCCMutex sync.Mutex + +func (s *BPSWClassMapWattsProacCC) 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 *BPSWClassMapWattsProacCC) Registered( + _ sched.SchedulerDriver, + frameworkID *mesos.FrameworkID, + masterInfo *mesos.MasterInfo) { + log.Printf("Framework %s registered with master %s", frameworkID, masterInfo) +} + +func (s *BPSWClassMapWattsProacCC) Reregistered(_ sched.SchedulerDriver, masterInfo *mesos.MasterInfo) { + log.Printf("Framework re-registered with master %s", masterInfo) +} + +func (s *BPSWClassMapWattsProacCC) Disconnected(sched.SchedulerDriver) { + // Need to stop the capping process + s.ticker.Stop() + s.recapTicker.Stop() + bpswClassMapWattsProacCCMutex.Lock() + s.isCapping = false + bpswClassMapWattsProacCCMutex.Unlock() + log.Println("Framework disconnected with master") +} + +// go routine to cap the entire cluster in regular intervals of time. +var bpswClassMapWattsCapValue = 0.0 // initial value to indicate that we haven't capped the cluster yet. +func (s *BPSWClassMapWattsProacCC) startCapping() { + go func() { + for { + select { + case <-s.ticker.C: + // Need to cap the cluster to the bpswClassMapWattsCapValue. + bpswClassMapWattsProacCCMutex.Lock() + if bpswClassMapWattsCapValue > 0.0 { + for _, host := range constants.Hosts { + // Rounding capValue to nearest int. + if err := rapl.Cap(host, "rapl", int(math.Floor(bpswClassMapWattsCapValue+0.5))); err != nil { + log.Println(err) + } + } + log.Printf("Capped the cluster to %d", int(math.Floor(bpswClassMapWattsCapValue+0.5))) + } + bpswClassMapWattsProacCCMutex.Unlock() + } + } + }() +} + +// go routine to recap the entire cluster in regular intervals of time. +var bpswClassMapWattsRecapValue = 0.0 // The cluster-wide cap value when recapping +func (s *BPSWClassMapWattsProacCC) startRecapping() { + go func() { + for { + select { + case <-s.recapTicker.C: + bpswClassMapWattsProacCCMutex.Lock() + // If stopped performing cluster wide capping, then we need to recap + if s.isRecapping && bpswClassMapWattsRecapValue > 0.0 { + for _, host := range constants.Hosts { + // Rounding capValue to the nearest int + if err := rapl.Cap(host, "rapl", int(math.Floor(bpswClassMapWattsRecapValue+0.5))); err != nil { + log.Println(err) + } + } + log.Printf("Recapping the cluster to %d", int(math.Floor(bpswClassMapWattsRecapValue+0.5))) + } + // Setting recapping to false + s.isRecapping = false + bpswClassMapWattsProacCCMutex.Unlock() + } + } + }() +} + +// Stop cluster wide capping +func (s *BPSWClassMapWattsProacCC) stopCapping() { + if s.isCapping { + log.Println("Stopping the cluster-wide capping.") + s.ticker.Stop() + bpswClassMapWattsProacCCMutex.Lock() + s.isCapping = false + s.isRecapping = true + bpswClassMapWattsProacCCMutex.Unlock() + } +} + +// Stop the cluster wide recapping +func (s *BPSWClassMapWattsProacCC) stopRecapping() { + // If not capping, then definitely recapping. + if !s.isCapping && s.isRecapping { + log.Println("Stopping the cluster-wide re-capping.") + s.recapTicker.Stop() + bpswClassMapWattsProacCCMutex.Lock() + s.isRecapping = false + bpswClassMapWattsProacCCMutex.Unlock() + } +} + +func (s *BPSWClassMapWattsProacCC) 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: + } + + tasks := []*mesos.TaskInfo{} + + offerCPU, offerRAM, offerWatts := OfferAgg(offer) + + taken := false + totalWatts := 0.0 + totalCPU := 0.0 + totalRAM := 0.0 + for i, task := range s.tasks { + // Check host if it exists + if task.Host != "" { + // Don't take offer it it doesn't match our task's host requirement. + if strings.HasPrefix(*offer.Hostname, task.Host) { + continue + } + } + + for *task.Instances > 0 { + var nodeClass string + for _, attr := range offer.GetAttributes() { + if attr.GetName() == "class" { + nodeClass = attr.GetText().GetValue() + } + } + // Does the task fit + // OR Lazy evaluation. If ignore watts is set to true, second statement won't + // be evaluated. + if (s.ignoreWatts || (offerWatts >= (totalWatts + task.ClassToWatts[nodeClass]))) && + (offerCPU >= (totalCPU + task.CPU)) && + (offerRAM >= (totalRAM + task.RAM)) { + + // Capping the cluster if haven't yet started + if !s.isCapping { + bpswClassMapWattsProacCCMutex.Lock() + s.isCapping = true + bpswClassMapWattsProacCCMutex.Unlock() + s.startCapping() + } + + fmt.Println("Watts being used: ", task.ClassToWatts[nodeClass]) + tempCap, err := s.capper.FCFSDeterminedCap(s.totalPower, &task) + if err == nil { + bpswClassMapWattsProacCCMutex.Lock() + bpswClassMapWattsCapValue = tempCap + bpswClassMapWattsProacCCMutex.Unlock() + } else { + log.Println("Failed to determine new cluster-wide cap:") + log.Println(err) + } + taken = true + totalWatts += task.ClassToWatts[nodeClass] + totalCPU += task.CPU + totalRAM += task.RAM + log.Println("Co-Located with: ") + coLocated(s.running[offer.GetSlaveId().GoString()]) + tasks = append(tasks, s.newTask(offer, task, nodeClass)) + + 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) + } + } + } else { + break // Continue on to the next task + } + } + } + + if taken { + log.Printf("Starting on [%s]\n", offer.GetHostname()) + driver.LaunchTasks([]*mesos.OfferID{offer.Id}, tasks, defaultFilter) + } else { + // If there was no match for the task + 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 *BPSWClassMapWattsProacCC) 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.Recap(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(bpswClassMapWattsRecapValue+0.5)) { + bpswClassMapWattsRecapValue = tempCap + bpswClassMapWattsProacCCMutex.Lock() + s.isRecapping = true + bpswClassMapWattsProacCCMutex.Unlock() + log.Printf("Determined re-cap value: %f\n", bpswClassMapWattsRecapValue) + } else { + bpswClassMapWattsProacCCMutex.Lock() + s.isRecapping = false + bpswClassMapWattsProacCCMutex.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) +} + +func (s *BPSWClassMapWattsProacCC) FrameworkMessage( + driver sched.SchedulerDriver, + executorID *mesos.ExecutorID, + slaveID *mesos.SlaveID, + message string) { + log.Println("Getting a framework message: ", message) + log.Printf("Received framework message from some unknown source: %s", *executorID.Value) +} + +func (s *BPSWClassMapWattsProacCC) OfferRescinded(_ sched.SchedulerDriver, offerID *mesos.OfferID) { + log.Printf("Offer %s rescinded", offerID) +} + +func (s *BPSWClassMapWattsProacCC) SlaveLost(_ sched.SchedulerDriver, slaveID *mesos.SlaveID) { + log.Printf("Slave %s lost", slaveID) +} + +func (s *BPSWClassMapWattsProacCC) ExecutorLost(_ sched.SchedulerDriver, executorID *mesos.ExecutorID, slaveID *mesos.SlaveID, status int) { + log.Printf("Executor %s on slave %s was lost", executorID, slaveID) +} + +func (s *BPSWClassMapWattsProacCC) Error(_ sched.SchedulerDriver, err string) { + log.Printf("Receiving an error: %s", err) +}