// driver runs on local, controlling all tasks
func (fcd *FlowContextDriver) Run(fc *flow.FlowContext) {
// task fusion to minimize disk IO
taskGroups := plan.GroupTasks(fc)
// plot the execution graph
if fcd.option.PlotOutput {
plan.PlotGraph(taskGroups, fc)
return
}
// start server to serve files to agents to run exectuors
rsyncServer, err := rsync.NewRsyncServer(os.Args[0], fcd.option.RelatedFileNames())
if err != nil {
log.Fatalf("Failed to start local server: %v", err)
}
rsyncServer.Start()
// create thes cheduler
sched := scheduler.NewScheduler(
fcd.option.Leader,
&scheduler.SchedulerOption{
DataCenter: fcd.option.DataCenter,
Rack: fcd.option.Rack,
TaskMemoryMB: fcd.option.TaskMemoryMB,
DriverPort: rsyncServer.Port,
Module: fcd.option.Module,
ExecutableFile: os.Args[0],
ExecutableFileHash: rsyncServer.ExecutableFileHash(),
},
)
// best effort to clean data on agent disk
// this may need more improvements
defer fcd.Cleanup(sched, fc, taskGroups)
go sched.EventLoop()
flow.OnInterrupt(func() {
fcd.OnInterrupt(fc, taskGroups, sched)
})
// schedule to run the steps
var wg sync.WaitGroup
for _, taskGroup := range taskGroups {
wg.Add(1)
sched.EventChan <- scheduler.SubmitTaskGroup{
FlowContext: fc,
TaskGroup: taskGroup,
Bid: fcd.option.FlowBid / float64(len(taskGroups)),
WaitGroup: &wg,
}
}
go sched.Market.FetcherLoop()
wg.Wait()
fcd.CloseOutputChannels(fc)
}
// driver runs on local, controlling all tasks
func (fcd *FlowContextDriver) Run(fc *flow.FlowContext) {
fcd.checkParameters()
// task fusion to minimize disk IO
fcd.stepGroups, fcd.taskGroups = plan.GroupTasks(fc)
// plot the execution graph
if fcd.Option.PlotOutput {
plan.PlotGraph(fcd.taskGroups, fc)
return
}
tlsConfig := fcd.Option.CertFiles.MakeTLSConfig()
util.SetupHttpClient(tlsConfig)
// start server to serve files to agents to run exectuors
rsyncServer, err := rsync.NewRsyncServer(os.Args[0], fcd.Option.RelatedFileNames())
if err != nil {
log.Fatalf("Failed to start local server: %v", err)
}
rsyncServer.StartRsyncServer(tlsConfig, fcd.Option.Host+":"+strconv.Itoa(fcd.Option.Port))
driverHost := fcd.Option.Host
// create thes cheduler
sched := scheduler.NewScheduler(
fcd.Option.Leader,
&scheduler.SchedulerOption{
DataCenter: fcd.Option.DataCenter,
Rack: fcd.Option.Rack,
TaskMemoryMB: fcd.Option.TaskMemoryMB,
DriverHost: driverHost,
DriverPort: rsyncServer.Port,
Module: fcd.Option.Module,
ExecutableFile: os.Args[0],
ExecutableFileHash: rsyncServer.ExecutableFileHash(),
TlsConfig: tlsConfig,
},
)
// best effort to clean data on agent disk
// this may need more improvements
defer fcd.Cleanup(sched, fc)
go sched.EventLoop()
flow.OnInterrupt(func() {
fcd.OnInterrupt(fc, sched)
}, func() {
fcd.OnExit(fc, sched)
})
// schedule to run the steps
var wg sync.WaitGroup
for _, taskGroup := range fcd.taskGroups {
wg.Add(1)
sched.EventChan <- scheduler.SubmitTaskGroup{
FlowContext: fc,
TaskGroup: taskGroup,
Bid: fcd.Option.FlowBid / float64(len(fcd.taskGroups)),
WaitGroup: &wg,
}
}
go sched.Market.FetcherLoop()
wg.Wait()
fcd.CloseOutputChannels(fc)
if fcd.Option.ShowFlowStats {
fcd.ShowFlowStatus(fc, sched)
}
}