func main() {
programType := flag.String("type", "", "(c) controller or (t) task")
job := flag.String("job", "", "job name")
etcdURLs := []string{"http://localhost:4001"}
flag.Parse()
if *job == "" {
log.Fatalf("Please specify a job name")
}
ntask := uint64(2)
switch *programType {
case "c":
log.Printf("controller")
controller := controller.New(*job, etcd.NewClient(etcdURLs), ntask)
controller.Start()
controller.WaitForJobDone()
case "t":
log.Printf("task")
bootstrap := framework.NewBootStrap(*job, etcdURLs, createListener(), nil)
taskBuilder := ®ression.SimpleTaskBuilder{
GDataChan: make(chan int32, 11),
NumberOfIterations: 10,
MasterConfig: map[string]string{"writefile": "result.txt"},
}
bootstrap.SetTaskBuilder(taskBuilder)
bootstrap.AddLinkage("Parents" : topo.NewTreeTopologyOfParent(2, ntask))
bootstrap.AddLinkage("Children" : topo.NewTreeTopologyOfChildren(2, ntask))
bootstrap.Start()
default:
log.Fatal("Please choose a type: (c) controller, (t) task")
}
}
func TestRegressionFramework(t *testing.T) {
etcdURLs := []string{"http://localhost:4001"}
job := "framework_regression_test"
numOfTasks := uint64(15)
numOfIterations := uint64(10)
// controller start first to setup task directories in etcd
controller := controller.New(job, etcd.NewClient(etcdURLs), numOfTasks, []string{"Parents", "Children"})
controller.Start()
// We need to set etcd so that nodes know what to do.
taskBuilder := ®ression.SimpleTaskBuilder{
GDataChan: make(chan int32, 11),
NumberOfIterations: numOfIterations,
}
for i := uint64(0); i < numOfTasks; i++ {
go driveWithTreeTopo(t, job, etcdURLs, numOfTasks, taskBuilder)
}
wantData := []int32{0, 105, 210, 315, 420, 525, 630, 735, 840, 945, 1050}
getData := make([]int32, numOfIterations+1)
for i := uint64(0); i <= numOfIterations; i++ {
getData[i] = <-taskBuilder.GDataChan
}
for i := range wantData {
if wantData[i] != getData[i] {
t.Errorf("#%d: data want = %d, get = %d\n", i, wantData[i], getData[i])
}
}
controller.WaitForJobDone()
controller.Stop()
}
func main() {
etcdUrlList := flag.String("etcd_urls", "", "ETCD server lists, sep by a comma.")
jobName := flag.String("job_name", "bwmf", "Job name in etcd path.")
jobType := flag.String("job_type", "c", "Job type, either 'c' for controller or 't' for task.")
numTasks := flag.Int("num_tasks", 1, "Num of tasks.")
taskConfigFile := flag.String("task_config", "", "Path to task config json file.")
flag.Parse()
if *jobName == "" {
log.Fatal("Job name is required.")
}
crd, oErr := filesystem.NewLocalFSClient().OpenReadCloser(*taskConfigFile)
if oErr != nil {
log.Fatalf("Failed opening task config file. %s", oErr)
}
confData, rdErr := ioutil.ReadAll(crd)
if rdErr != nil {
log.Fatalf("Failed reading task config. %s", rdErr)
}
log.Printf("conf data: %s", confData)
if *etcdUrlList == "" {
log.Fatal("Please specify the etcd server urls.")
}
etcdUrls := strings.Split(*etcdUrlList, ",")
log.Println("etcd urls: ", etcdUrls)
topoMaster := topo.NewFullTopologyOfMaster(uint64(*numTasks))
topoNeighbors := topo.NewFullTopologyOfNeighbor(uint64(*numTasks))
switch *jobType {
case "t":
bootstrap := framework.NewBootStrap(*jobName, etcdUrls, createListener(), nil)
taskBuilder := &bwmf.BWMFTaskBuilder{
NumOfTasks: uint64(*numTasks),
ConfBytes: confData,
}
bootstrap.SetTaskBuilder(taskBuilder)
bootstrap.AddLinkage("Master", topoMaster)
bootstrap.AddLinkage("Neighbors", topoNeighbors)
log.Println("Starting task..")
bootstrap.Start()
case "c":
controller := controller.New(*jobName, etcd.NewClient(etcdUrls), uint64(*numTasks), []string{"Master", "Neighbors"})
controller.Start()
log.Println("Controller started.")
controller.WaitForJobDone()
controller.Stop()
default:
log.Fatal("Please choose a type via '-jobtype': (c) controller, (t) task")
}
}
// TestMasterSetEpochFailure checks if a master task failed at SetEpoch,
// 1. a new boostrap will be created to take over
// 2. continue what's left;
// 3. finish the job with the same result.
func TestMasterSetEpochFailure(t *testing.T) {
job := "TestMasterSetEpochFailure"
etcdURLs := []string{"http://localhost:4001"}
numOfTasks := uint64(15)
numOfIterations := uint64(10)
// controller start first to setup task directories in etcd
controller := controller.New(job, etcd.NewClient(etcdURLs), numOfTasks, []string{"Parents", "Children"})
controller.Start()
taskBuilder := ®ression.SimpleTaskBuilder{
GDataChan: make(chan int32, 11),
NodeProducer: make(chan bool, 1),
MasterConfig: map[string]string{
"SetEpoch": "fail",
"failepoch": "1",
"faillevel": "100",
},
NumberOfIterations: numOfIterations,
}
for i := uint64(0); i < numOfTasks; i++ {
go driveWithTreeTopo(t, job, etcdURLs, numOfTasks, taskBuilder)
}
if <-taskBuilder.NodeProducer {
taskBuilder.MasterConfig = nil
log.Println("Starting a new node")
// this time we start a new bootstrap whose task master doesn't fail.
go driveWithTreeTopo(t, job, etcdURLs, numOfTasks, taskBuilder)
}
wantData := []int32{0, 105, 210, 315, 420, 525, 630, 735, 840, 945, 1050}
getData := make([]int32, numOfIterations+1)
for i := uint64(0); i <= numOfIterations; i++ {
getData[i] = <-taskBuilder.GDataChan
}
for i := range wantData {
if wantData[i] != getData[i] {
t.Errorf("#%d: data want = %d, get = %d", i, wantData[i], getData[i])
}
}
controller.WaitForJobDone()
controller.Stop()
}
func testSlaveFailure(t *testing.T, job string, slaveConfig map[string]string) {
etcdURLs := []string{"http://localhost:4001"}
numOfTasks := uint64(15)
numOfIterations := uint64(10)
// controller start first to setup task directories in etcd
controller := controller.New(job, etcd.NewClient(etcdURLs), numOfTasks, []string{"Parents", "Children"})
controller.Start()
defer controller.Stop()
taskBuilder := ®ression.SimpleTaskBuilder{
GDataChan: make(chan int32, 11),
NodeProducer: make(chan bool, 1),
SlaveConfig: slaveConfig,
NumberOfIterations: numOfIterations,
}
go func() {
for _ = range taskBuilder.NodeProducer {
log.Println("Starting a new node")
go driveWithTreeTopo(t, job, etcdURLs, numOfTasks, taskBuilder)
}
}()
for i := uint64(0); i < numOfTasks; i++ {
taskBuilder.NodeProducer <- true
}
wantData := []int32{0, 105, 210, 315, 420, 525, 630, 735, 840, 945, 1050}
getData := make([]int32, numOfIterations+1)
for i := uint64(0); i <= numOfIterations; i++ {
getData[i] = <-taskBuilder.GDataChan
}
for i := range wantData {
if wantData[i] != getData[i] {
t.Errorf("#%d: data want = %d, get = %d", i, wantData[i], getData[i])
}
}
controller.WaitForJobDone()
controller.Stop()
close(taskBuilder.NodeProducer)
}