formatted the code
This commit is contained in:
Pradyumna Kaushik
Renan DelValle
parent
4d13c432c4
commit
b7394b8762
2 changed files with 397 additions and 396 deletions
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@ -1,111 +1,111 @@
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package schedulers
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import (
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"bitbucket.org/sunybingcloud/electron/def"
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"bitbucket.org/sunybingcloud/electron/constants"
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"bitbucket.org/sunybingcloud/electron/rapl"
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"fmt"
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"github.com/golang/protobuf/proto"
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mesos "github.com/mesos/mesos-go/mesosproto"
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"github.com/mesos/mesos-go/mesosutil"
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sched "github.com/mesos/mesos-go/scheduler"
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"log"
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"math"
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"strings"
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"time"
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"bitbucket.org/sunybingcloud/electron/constants"
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"bitbucket.org/sunybingcloud/electron/def"
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"bitbucket.org/sunybingcloud/electron/rapl"
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"fmt"
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"github.com/golang/protobuf/proto"
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mesos "github.com/mesos/mesos-go/mesosproto"
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"github.com/mesos/mesos-go/mesosutil"
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sched "github.com/mesos/mesos-go/scheduler"
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"log"
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"math"
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"strings"
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"time"
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)
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// Decides if to take an offer or not
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func (_ *ProactiveClusterwideCapFCFS) takeOffer(offer *mesos.Offer, task def.Task) bool {
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offer_cpu, offer_mem, _ := OfferAgg(offer)
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offer_cpu, offer_mem, _ := OfferAgg(offer)
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if offer_cpu >= task.CPU && offer_mem >= task.RAM {
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return true
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}
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return false
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if offer_cpu >= task.CPU && offer_mem >= task.RAM {
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return true
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}
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return false
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}
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// electronScheduler implements the Scheduler interface.
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type ProactiveClusterwideCapFCFS struct {
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tasksCreated int
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tasksRunning int
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tasks []def.Task
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metrics map[string]def.Metric
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running map[string]map[string]bool
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taskMonitor map[string][]def.Task // store tasks that are currently running.
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availablePower map[string]float64 // available power for each node in the cluster.
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totalPower map[string]float64 // total power for each node in the cluster.
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ignoreWatts bool
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capper *clusterwideCapper
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ticker *time.Ticker
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isCapping bool // indicate whether we are currently performing cluster wide capping.
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//lock *sync.Mutex
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tasksCreated int
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tasksRunning int
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tasks []def.Task
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metrics map[string]def.Metric
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running map[string]map[string]bool
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taskMonitor map[string][]def.Task // store tasks that are currently running.
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availablePower map[string]float64 // available power for each node in the cluster.
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totalPower map[string]float64 // total power for each node in the cluster.
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ignoreWatts bool
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capper *clusterwideCapper
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ticker *time.Ticker
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isCapping bool // indicate whether we are currently performing cluster wide capping.
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//lock *sync.Mutex
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// First set of PCP values are garbage values, signal to logger to start recording when we're
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// about to schedule the new task.
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RecordPCP bool
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// First set of PCP values are garbage values, signal to logger to start recording when we're
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// about to schedule the new task.
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RecordPCP bool
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// This channel is closed when the program receives an interrupt,
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// signalling that the program should shut down.
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Shutdown chan struct{}
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// This channel is closed when the program receives an interrupt,
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// signalling that the program should shut down.
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Shutdown chan struct{}
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// This channel is closed after shutdown is closed, and only when all
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// outstanding tasks have been cleaned up.
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Done chan struct{}
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// This channel is closed after shutdown is closed, and only when all
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// outstanding tasks have been cleaned up.
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Done chan struct{}
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// Controls when to shutdown pcp logging.
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PCPLog chan struct{}
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// Controls when to shutdown pcp logging.
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PCPLog chan struct{}
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}
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// New electron scheduler.
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func NewProactiveClusterwideCapFCFS(tasks []def.Task, ignoreWatts bool) *ProactiveClusterwideCapFCFS {
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s := &ProactiveClusterwideCapFCFS {
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tasks: tasks,
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ignoreWatts: ignoreWatts,
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Shutdown: make(chan struct{}),
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Done: make(chan struct{}),
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PCPLog: make(chan struct{}),
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running: make(map[string]map[string]bool),
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taskMonitor: make(map[string][]def.Task),
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availablePower: make(map[string]float64),
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totalPower: make(map[string]float64),
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RecordPCP: false,
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capper: getClusterwideCapperInstance(),
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ticker: time.NewTicker(5 * time.Second),
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isCapping: false,
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//lock: new(sync.Mutex),
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}
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return s
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s := &ProactiveClusterwideCapFCFS{
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tasks: tasks,
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ignoreWatts: ignoreWatts,
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Shutdown: make(chan struct{}),
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Done: make(chan struct{}),
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PCPLog: make(chan struct{}),
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running: make(map[string]map[string]bool),
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taskMonitor: make(map[string][]def.Task),
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availablePower: make(map[string]float64),
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totalPower: make(map[string]float64),
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RecordPCP: false,
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capper: getClusterwideCapperInstance(),
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ticker: time.NewTicker(5 * time.Second),
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isCapping: false,
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//lock: new(sync.Mutex),
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}
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return s
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}
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func (s *ProactiveClusterwideCapFCFS) newTask(offer *mesos.Offer, task def.Task) *mesos.TaskInfo {
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taskName := fmt.Sprintf("%s-%d", task.Name, *task.Instances)
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s.tasksCreated++
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taskName := fmt.Sprintf("%s-%d", task.Name, *task.Instances)
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s.tasksCreated++
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if !s.RecordPCP {
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// Turn on logging.
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s.RecordPCP = true
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time.Sleep(1 * time.Second) // Make sure we're recording by the time the first task starts
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}
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if !s.RecordPCP {
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// Turn on logging.
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s.RecordPCP = true
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time.Sleep(1 * time.Second) // Make sure we're recording by the time the first task starts
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}
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// If this is our first time running into this Agent
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if _, ok := s.running[offer.GetSlaveId().GoString()]; !ok {
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s.running[offer.GetSlaveId().GoString()] = make(map[string]bool)
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}
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// If this is our first time running into this Agent
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if _, ok := s.running[offer.GetSlaveId().GoString()]; !ok {
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s.running[offer.GetSlaveId().GoString()] = make(map[string]bool)
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}
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// Setting the task ID to the task. This is done so that we can consider each task to be different,
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// even though they have the same parameters.
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task.SetTaskID(*proto.String(taskName))
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// Add task to the list of tasks running on the node.
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s.running[offer.GetSlaveId().GoString()][taskName] = true
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s.taskMonitor[offer.GetSlaveId().GoString()] = []def.Task{task}
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// Setting the task ID to the task. This is done so that we can consider each task to be different,
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// even though they have the same parameters.
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task.SetTaskID(*proto.String(taskName))
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// Add task to the list of tasks running on the node.
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s.running[offer.GetSlaveId().GoString()][taskName] = true
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s.taskMonitor[offer.GetSlaveId().GoString()] = []def.Task{task}
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resources := []*mesos.Resource{
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mesosutil.NewScalarResource("cpus", task.CPU),
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mesosutil.NewScalarResource("mem", task.RAM),
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}
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resources := []*mesos.Resource{
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mesosutil.NewScalarResource("cpus", task.CPU),
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mesosutil.NewScalarResource("mem", task.RAM),
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}
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if !s.ignoreWatts {
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if !s.ignoreWatts {
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resources = append(resources, mesosutil.NewScalarResource("watts", task.Watts))
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}
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@ -130,189 +130,189 @@ func (s *ProactiveClusterwideCapFCFS) newTask(offer *mesos.Offer, task def.Task)
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}
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func (s *ProactiveClusterwideCapFCFS) Registered(
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_ sched.SchedulerDriver,
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frameworkID *mesos.FrameworkID,
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masterInfo *mesos.MasterInfo) {
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log.Printf("Framework %s registered with master %s", frameworkID, masterInfo)
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_ sched.SchedulerDriver,
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frameworkID *mesos.FrameworkID,
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masterInfo *mesos.MasterInfo) {
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log.Printf("Framework %s registered with master %s", frameworkID, masterInfo)
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}
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func (s *ProactiveClusterwideCapFCFS) Reregistered(_ sched.SchedulerDriver, masterInfo *mesos.MasterInfo) {
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log.Printf("Framework re-registered with master %s", masterInfo)
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log.Printf("Framework re-registered with master %s", masterInfo)
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}
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func (s *ProactiveClusterwideCapFCFS) Disconnected(sched.SchedulerDriver) {
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// Need to stop the capping process.
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s.ticker.Stop()
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s.isCapping = false
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log.Println("Framework disconnected with master")
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// Need to stop the capping process.
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s.ticker.Stop()
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s.isCapping = false
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log.Println("Framework disconnected with master")
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}
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// go routine to cap the entire cluster in regular intervals of time.
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var currentCapValue = 0.0 // initial value to indicate that we haven't capped the cluster yet.
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func (s *ProactiveClusterwideCapFCFS) startCapping() {
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go func() {
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for {
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select {
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case <- s.ticker.C:
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// Need to cap the cluster to the currentCapValue.
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if currentCapValue > 0.0 {
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//mutex.Lock()
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//s.lock.Lock()
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for _, host := range constants.Hosts {
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// Rounding curreCapValue to the nearest int.
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if err := rapl.Cap(host, "rapl", int(math.Floor(currentCapValue + 0.5))); err != nil {
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fmt.Println(err)
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} else {
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fmt.Printf("Successfully capped %s to %f%\n", host, currentCapValue)
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}
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}
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//mutex.Unlock()
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//s.lock.Unlock()
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}
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}
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}
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}()
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go func() {
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for {
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select {
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case <-s.ticker.C:
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// Need to cap the cluster to the currentCapValue.
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if currentCapValue > 0.0 {
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//mutex.Lock()
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//s.lock.Lock()
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for _, host := range constants.Hosts {
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// Rounding curreCapValue to the nearest int.
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if err := rapl.Cap(host, "rapl", int(math.Floor(currentCapValue+0.5))); err != nil {
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fmt.Println(err)
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} else {
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fmt.Printf("Successfully capped %s to %f%\n", host, currentCapValue)
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}
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}
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//mutex.Unlock()
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//s.lock.Unlock()
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}
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}
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}
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}()
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}
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// Stop cluster wide capping
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func (s *ProactiveClusterwideCapFCFS) stopCapping() {
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if s.isCapping {
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log.Println("Stopping the cluster wide capping.")
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s.ticker.Stop()
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s.isCapping = false
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}
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if s.isCapping {
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log.Println("Stopping the cluster wide capping.")
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s.ticker.Stop()
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s.isCapping = false
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}
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}
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// TODO: Need to reduce the time complexity: looping over offers twice (Possible to do it just once?).
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func (s *ProactiveClusterwideCapFCFS) ResourceOffers(driver sched.SchedulerDriver, offers []*mesos.Offer) {
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log.Printf("Received %d resource offers", len(offers))
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log.Printf("Received %d resource offers", len(offers))
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// retrieving the available power for all the hosts in the offers.
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for _, offer := range offers {
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_, _, offer_watts := OfferAgg(offer)
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s.availablePower[*offer.Hostname] = offer_watts
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// setting total power if the first time.
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if _, ok := s.totalPower[*offer.Hostname]; !ok {
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s.totalPower[*offer.Hostname] = offer_watts
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}
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}
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// retrieving the available power for all the hosts in the offers.
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for _, offer := range offers {
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_, _, offer_watts := OfferAgg(offer)
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s.availablePower[*offer.Hostname] = offer_watts
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// setting total power if the first time.
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if _, ok := s.totalPower[*offer.Hostname]; !ok {
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s.totalPower[*offer.Hostname] = offer_watts
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}
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}
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for host, tpower := range s.totalPower {
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fmt.Printf("TotalPower[%s] = %f\n", host, tpower)
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}
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for host, apower := range s.availablePower {
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fmt.Printf("AvailablePower[%s] = %f\n", host, apower)
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}
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for host, tpower := range s.totalPower {
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fmt.Printf("TotalPower[%s] = %f\n", host, tpower)
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}
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for host, apower := range s.availablePower {
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fmt.Printf("AvailablePower[%s] = %f\n", host, apower)
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}
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for _, offer := range offers {
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select {
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case <-s.Shutdown:
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log.Println("Done scheduling tasks: declining offer on [", offer.GetHostname(), "]")
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driver.DeclineOffer(offer.Id, longFilter)
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for _, offer := range offers {
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select {
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case <-s.Shutdown:
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log.Println("Done scheduling tasks: declining offer on [", offer.GetHostname(), "]")
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driver.DeclineOffer(offer.Id, longFilter)
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log.Println("Number of tasks still running: ", s.tasksRunning)
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continue
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default:
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}
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log.Println("Number of tasks still running: ", s.tasksRunning)
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continue
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default:
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}
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/*
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Clusterwide Capping strategy
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/*
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Clusterwide Capping strategy
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For each task in s.tasks,
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1. Need to check whether the offer can be taken or not (based on CPU and RAM requirements).
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2. If the tasks fits the offer, then I need to detemrine the cluster wide cap.
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3. currentCapValue is updated with the determined cluster wide cap.
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For each task in s.tasks,
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1. Need to check whether the offer can be taken or not (based on CPU and RAM requirements).
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2. If the tasks fits the offer, then I need to detemrine the cluster wide cap.
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3. currentCapValue is updated with the determined cluster wide cap.
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Cluster wide capping is currently performed at regular intervals of time.
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TODO: We can choose to cap the cluster only if the clusterwide cap varies more than the current clusterwide cap.
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Although this sounds like a better approach, it only works when the resource requirements of neighbouring tasks are similar.
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*/
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//offer_cpu, offer_ram, _ := OfferAgg(offer)
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Cluster wide capping is currently performed at regular intervals of time.
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TODO: We can choose to cap the cluster only if the clusterwide cap varies more than the current clusterwide cap.
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Although this sounds like a better approach, it only works when the resource requirements of neighbouring tasks are similar.
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*/
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//offer_cpu, offer_ram, _ := OfferAgg(offer)
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taken := false
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//var mutex sync.Mutex
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taken := false
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//var mutex sync.Mutex
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for i, task := range s.tasks {
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// Don't take offer if it doesn't match our task's host requirement.
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if !strings.HasPrefix(*offer.Hostname, task.Host) {
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continue
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}
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for i, task := range s.tasks {
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// Don't take offer if it doesn't match our task's host requirement.
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if !strings.HasPrefix(*offer.Hostname, task.Host) {
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continue
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}
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// Does the task fit.
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if s.takeOffer(offer, task) {
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// Capping the cluster if haven't yet started,
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if !s.isCapping {
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s.startCapping()
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s.isCapping = true
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}
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taken = true
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//mutex.Lock()
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//s.lock.Lock()
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//tempCap, err := s.capper.fcfsDetermineCap(s.availablePower, &task)
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tempCap, err := s.capper.fcfsDetermineCap(s.totalPower, &task)
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// Does the task fit.
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if s.takeOffer(offer, task) {
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// Capping the cluster if haven't yet started,
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if !s.isCapping {
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s.startCapping()
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s.isCapping = true
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}
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taken = true
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//mutex.Lock()
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//s.lock.Lock()
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//tempCap, err := s.capper.fcfsDetermineCap(s.availablePower, &task)
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tempCap, err := s.capper.fcfsDetermineCap(s.totalPower, &task)
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if err == nil {
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currentCapValue = tempCap
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} else {
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fmt.Printf("Failed to determine new cluster wide cap: ")
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fmt.Println(err)
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}
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//mutex.Unlock()
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//s.lock.Unlock()
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fmt.Printf("Starting on [%s]\n", offer.GetHostname())
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to_schedule := []*mesos.TaskInfo{s.newTask(offer, task)}
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driver.LaunchTasks([]*mesos.OfferID{offer.Id}, to_schedule, defaultFilter)
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fmt.Printf("Inst: %d", *task.Instances)
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*task.Instances--
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if *task.Instances <= 0 {
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// All instances of the task have been scheduled. Need to remove it from the list of tasks to schedule.
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s.tasks[i] = s.tasks[len(s.tasks)-1]
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if err == nil {
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currentCapValue = tempCap
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} else {
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fmt.Printf("Failed to determine new cluster wide cap: ")
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fmt.Println(err)
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}
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//mutex.Unlock()
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//s.lock.Unlock()
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fmt.Printf("Starting on [%s]\n", offer.GetHostname())
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to_schedule := []*mesos.TaskInfo{s.newTask(offer, task)}
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driver.LaunchTasks([]*mesos.OfferID{offer.Id}, to_schedule, defaultFilter)
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fmt.Printf("Inst: %d", *task.Instances)
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*task.Instances--
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if *task.Instances <= 0 {
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// All instances of the task have been scheduled. Need to remove it from the list of tasks to schedule.
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s.tasks[i] = s.tasks[len(s.tasks)-1]
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s.tasks = s.tasks[:len(s.tasks)-1]
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if len(s.tasks) <= 0 {
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log.Println("Done scheduling all tasks")
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// Need to stop the cluster wide capping as there aren't any more tasks to schedule.
|
||||
s.stopCapping()
|
||||
// Need to stop the cluster wide capping as there aren't any more tasks to schedule.
|
||||
s.stopCapping()
|
||||
close(s.Shutdown)
|
||||
}
|
||||
}
|
||||
break // Offer taken, move on.
|
||||
} else {
|
||||
// Task doesn't fit the offer. Move onto the next offer.
|
||||
}
|
||||
}
|
||||
}
|
||||
break // Offer taken, move on.
|
||||
} else {
|
||||
// Task doesn't fit the offer. Move onto the next offer.
|
||||
}
|
||||
}
|
||||
|
||||
// If no task fit the offer, then declining the offer.
|
||||
if !taken {
|
||||
fmt.Printf("There is not enough resources to launch a task on Host: %s\n", offer.GetHostname())
|
||||
cpus, mem, watts := OfferAgg(offer)
|
||||
// If no task fit the offer, then declining the offer.
|
||||
if !taken {
|
||||
fmt.Printf("There is not enough resources to launch a task on Host: %s\n", offer.GetHostname())
|
||||
cpus, mem, watts := OfferAgg(offer)
|
||||
|
||||
log.Printf("<CPU: %f, RAM: %f, Watts: %f>\n", cpus, mem, watts)
|
||||
driver.DeclineOffer(offer.Id, defaultFilter)
|
||||
}
|
||||
}
|
||||
log.Printf("<CPU: %f, RAM: %f, Watts: %f>\n", cpus, mem, watts)
|
||||
driver.DeclineOffer(offer.Id, defaultFilter)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func (s *ProactiveClusterwideCapFCFS) StatusUpdate(driver sched.SchedulerDriver, status *mesos.TaskStatus) {
|
||||
log.Printf("Received task status [%s] for task [%s]", NameFor(status.State), *status.TaskId.Value)
|
||||
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 of tasks.
|
||||
s.capper.taskFinished(*status.TaskId.Value)
|
||||
//currentCapValue, _ = s.capper.recap(s.availablePower, s.taskMonitor, *status.TaskId.Value)
|
||||
// Determining the new cluster wide cap.
|
||||
currentCapValue, _ = s.capper.recap(s.totalPower, s.taskMonitor, *status.TaskId.Value)
|
||||
log.Printf("Recapping the cluster to %f\n", currentCapValue)
|
||||
// Need to remove the task from the window of tasks.
|
||||
s.capper.taskFinished(*status.TaskId.Value)
|
||||
//currentCapValue, _ = s.capper.recap(s.availablePower, s.taskMonitor, *status.TaskId.Value)
|
||||
// Determining the new cluster wide cap.
|
||||
currentCapValue, _ = s.capper.recap(s.totalPower, s.taskMonitor, *status.TaskId.Value)
|
||||
log.Printf("Recapping the cluster to %f\n", currentCapValue)
|
||||
|
||||
s.tasksRunning--
|
||||
if s.tasksRunning == 0 {
|
||||
select {
|
||||
case <-s.Shutdown:
|
||||
// Need to stop the capping process.
|
||||
s.stopCapping()
|
||||
// Need to stop the capping process.
|
||||
s.stopCapping()
|
||||
close(s.Done)
|
||||
default:
|
||||
}
|
||||
|
|
@ -322,20 +322,20 @@ func (s *ProactiveClusterwideCapFCFS) StatusUpdate(driver sched.SchedulerDriver,
|
|||
}
|
||||
|
||||
func (s *ProactiveClusterwideCapFCFS) FrameworkMessage(driver sched.SchedulerDriver,
|
||||
executorID *mesos.ExecutorID,
|
||||
slaveID *mesos.SlaveID,
|
||||
message string) {
|
||||
executorID *mesos.ExecutorID,
|
||||
slaveID *mesos.SlaveID,
|
||||
message string) {
|
||||
|
||||
log.Println("Getting a framework message: ", message)
|
||||
log.Printf("Received a framework message from some unknown source: %s", *executorID.Value)
|
||||
}
|
||||
|
||||
func (s *ProactiveClusterwideCapFCFS) OfferRescinded(_ sched.SchedulerDriver, offerID *mesos.OfferID) {
|
||||
log.Printf("Offer %s rescinded", offerID)
|
||||
log.Printf("Offer %s rescinded", offerID)
|
||||
}
|
||||
|
||||
func (s *ProactiveClusterwideCapFCFS) SlaveLost(_ sched.SchedulerDriver, slaveID *mesos.SlaveID) {
|
||||
log.Printf("Slave %s lost", slaveID)
|
||||
log.Printf("Slave %s lost", slaveID)
|
||||
}
|
||||
|
||||
func (s *ProactiveClusterwideCapFCFS) ExecutorLost(_ sched.SchedulerDriver, executorID *mesos.ExecutorID, slaveID *mesos.SlaveID, status int) {
|
||||
|
|
|
|||
Reference in a new issue