403 lines
13 KiB
Go
403 lines
13 KiB
Go
package schedulers
|
|
|
|
import (
|
|
"bitbucket.org/sunybingcloud/electron/constants"
|
|
"bitbucket.org/sunybingcloud/electron/def"
|
|
powCap "bitbucket.org/sunybingcloud/electron/powerCapping"
|
|
"bitbucket.org/sunybingcloud/electron/rapl"
|
|
"bitbucket.org/sunybingcloud/electron/utilities/mesosUtils"
|
|
"bitbucket.org/sunybingcloud/electron/utilities/offerUtils"
|
|
"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"
|
|
"os"
|
|
"sort"
|
|
"sync"
|
|
"time"
|
|
)
|
|
|
|
// Decides if to take an offer or not
|
|
func (s *BPSWClassMapWattsProacCC) takeOffer(offer *mesos.Offer, totalCPU, totalRAM,
|
|
totalWatts float64, powerClass string, task def.Task) bool {
|
|
offerCPU, offerRAM, offerWatts := offerUtils.OfferAgg(offer)
|
|
|
|
//TODO: Insert watts calculation here instead of taking them as a parameter
|
|
if (s.ignoreWatts || (offerWatts >= (totalWatts + task.ClassToWatts[powerClass]))) &&
|
|
(offerCPU >= (totalCPU + task.CPU)) &&
|
|
(offerRAM >= (totalRAM + task.RAM)) {
|
|
return true
|
|
}
|
|
return false
|
|
}
|
|
|
|
type BPSWClassMapWattsProacCC struct {
|
|
base // Type embedding to inherit common functions
|
|
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 *powCap.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 NewBPSWClassMapWattsProacCC(tasks []def.Task, ignoreWatts bool, schedTracePrefix string) *BPSWClassMapWattsProacCC {
|
|
sort.Sort(def.WattsSorter(tasks))
|
|
|
|
logFile, err := os.Create("./" + schedTracePrefix + "_schedTrace.log")
|
|
if err != nil {
|
|
log.Fatal(err)
|
|
}
|
|
|
|
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: powCap.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 bpswClassMapWattsProacCCMutex sync.Mutex
|
|
|
|
func (s *BPSWClassMapWattsProacCC) newTask(offer *mesos.Offer, task def.Task, powerClass 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[powerClass]))
|
|
}
|
|
|
|
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) 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 bpswClassMapWattsProacCCCapValue = 0.0 // initial value to indicate that we haven't capped the cluster yet.
|
|
var bpswClassMapWattsProacCCNewCapValue = 0.0 // newly computed cap value
|
|
func (s *BPSWClassMapWattsProacCC) startCapping() {
|
|
go func() {
|
|
for {
|
|
select {
|
|
case <-s.ticker.C:
|
|
// Need to cap the cluster only if new cap value different from old cap value.
|
|
// This way we don't unnecessarily cap the cluster.
|
|
bpswClassMapWattsProacCCMutex.Lock()
|
|
if s.isCapping {
|
|
if int(math.Floor(bpswClassMapWattsProacCCNewCapValue+0.5)) != int(math.Floor(bpswClassMapWattsProacCCCapValue+0.5)) {
|
|
// updating cap value
|
|
bpswClassMapWattsProacCCCapValue = bpswClassMapWattsProacCCNewCapValue
|
|
if bpswClassMapWattsProacCCCapValue > 0.0 {
|
|
for _, host := range constants.Hosts {
|
|
// Rounding cap value to nearest int
|
|
if err := rapl.Cap(host, "rapl", int(math.Floor(bpswClassMapWattsProacCCCapValue+0.5))); err != nil {
|
|
log.Println(err)
|
|
}
|
|
}
|
|
log.Printf("Capped the cluster to %d", int(math.Floor(bpswClassMapWattsProacCCCapValue+0.5)))
|
|
}
|
|
}
|
|
}
|
|
bpswClassMapWattsProacCCMutex.Unlock()
|
|
}
|
|
}
|
|
}()
|
|
}
|
|
|
|
// go routine to recap the entire cluster in regular intervals of time.
|
|
var bpswClassMapWattsProacCCRecapValue = 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 && bpswClassMapWattsProacCCRecapValue > 0.0 {
|
|
for _, host := range constants.Hosts {
|
|
// Rounding capValue to the nearest int
|
|
if err := rapl.Cap(host, "rapl", int(math.Floor(bpswClassMapWattsProacCCRecapValue+0.5))); err != nil {
|
|
log.Println(err)
|
|
}
|
|
}
|
|
log.Printf("Recapping the cluster to %d", int(math.Floor(bpswClassMapWattsProacCCRecapValue+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 := offerUtils.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, mesosUtils.LongFilter)
|
|
|
|
log.Println("Number of tasks still running: ", s.tasksRunning)
|
|
continue
|
|
default:
|
|
}
|
|
|
|
tasks := []*mesos.TaskInfo{}
|
|
|
|
offerTaken := false
|
|
totalWatts := 0.0
|
|
totalCPU := 0.0
|
|
totalRAM := 0.0
|
|
for i := 0; i < len(s.tasks); i++ {
|
|
task := s.tasks[i]
|
|
// Don't take offer if it doesn't match our task's host requirement
|
|
if offerUtils.HostMismatch(*offer.Hostname, task.Host) {
|
|
continue
|
|
}
|
|
|
|
for *task.Instances > 0 {
|
|
powerClass := offerUtils.PowerClass(offer)
|
|
// Does the task fit
|
|
// OR Lazy evaluation. If ignore watts is set to true, second statement won't
|
|
// be evaluated.
|
|
if s.takeOffer(offer, totalCPU, totalRAM, totalWatts, powerClass, task) {
|
|
|
|
// 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[powerClass])
|
|
tempCap, err := s.capper.FCFSDeterminedCap(s.totalPower, &task)
|
|
if err == nil {
|
|
bpswClassMapWattsProacCCMutex.Lock()
|
|
bpswClassMapWattsProacCCNewCapValue = tempCap
|
|
bpswClassMapWattsProacCCMutex.Unlock()
|
|
} else {
|
|
log.Println("Failed to determine new cluster-wide cap:")
|
|
log.Println(err)
|
|
}
|
|
offerTaken = true
|
|
totalWatts += task.ClassToWatts[powerClass]
|
|
totalCPU += task.CPU
|
|
totalRAM += task.RAM
|
|
log.Println("Co-Located with: ")
|
|
coLocated(s.running[offer.GetSlaveId().GoString()])
|
|
taskToSchedule := s.newTask(offer, task, powerClass)
|
|
tasks = append(tasks, taskToSchedule)
|
|
|
|
fmt.Println("Inst: ", *task.Instances)
|
|
s.schedTrace.Print(offer.GetHostname() + ":" + taskToSchedule.GetTaskId().GetValue())
|
|
*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 offerTaken {
|
|
log.Printf("Starting on [%s]\n", offer.GetHostname())
|
|
driver.LaunchTasks([]*mesos.OfferID{offer.Id}, tasks, mesosUtils.DefaultFilter)
|
|
} else {
|
|
// If there was no match for the task
|
|
fmt.Println("There is not enough resources to launch a task:")
|
|
cpus, mem, watts := offerUtils.OfferAgg(offer)
|
|
|
|
log.Printf("<CPU: %f, RAM: %f, Watts: %f>\n", cpus, mem, watts)
|
|
driver.DeclineOffer(offer.Id, mesosUtils.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.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(bpswClassMapWattsProacCCRecapValue+0.5)) {
|
|
bpswClassMapWattsProacCCRecapValue = tempCap
|
|
bpswClassMapWattsProacCCMutex.Lock()
|
|
s.isRecapping = true
|
|
bpswClassMapWattsProacCCMutex.Unlock()
|
|
log.Printf("Determined re-cap value: %f\n", bpswClassMapWattsProacCCRecapValue)
|
|
} 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)
|
|
}
|