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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,119 @@ | ||
| package scheduler | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "log" | ||
| "os" | ||
| "path/filepath" | ||
| "reflect" | ||
| "strconv" | ||
| "sync" | ||
| "time" | ||
|
|
||
| "github.com/chrislusf/glow/driver/plan" | ||
| "github.com/chrislusf/glow/flow" | ||
| "github.com/chrislusf/glow/netchan" | ||
| "github.com/chrislusf/glow/resource" | ||
| ) | ||
|
|
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| func (s *Scheduler) remoteExecuteOnLocation(flowContext *flow.FlowContext, taskGroup *plan.TaskGroup, allocation resource.Allocation, wg *sync.WaitGroup) { | ||
| tasks := taskGroup.Tasks | ||
|
|
||
| s.setupInputChannels(flowContext, tasks[0], allocation.Location, wg) | ||
|
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| for _, shard := range tasks[len(tasks)-1].Outputs { | ||
| s.shardLocator.SetShardLocation(s.option.ExecutableFileHash+"-"+shard.Name(), allocation.Location) | ||
| } | ||
| s.setupOutputChannels(tasks[len(tasks)-1].Outputs, wg) | ||
|
|
||
| // fmt.Printf("allocated %s on %v\n", tasks[0].Name(), allocation.Location) | ||
| // create reqeust | ||
| args := []string{ | ||
| "-glow.flow.id", | ||
| strconv.Itoa(flowContext.Id), | ||
| "-glow.taskGroup.id", | ||
| strconv.Itoa(taskGroup.Id), | ||
| "-glow.task.name", | ||
| tasks[0].Name(), | ||
| "-glow.agent.port", | ||
| strconv.Itoa(allocation.Location.Port), | ||
| "-glow.taskGroup.inputs", | ||
| s.shardLocator.allInputLocations(tasks[0]), | ||
| "-glow.exe.hash", | ||
| s.shardLocator.executableFileHash, | ||
| "-glow.channel.bufferSize", | ||
| strconv.Itoa(flowContext.ChannelBufferSize), | ||
| } | ||
| for _, arg := range os.Args[1:] { | ||
| args = append(args, arg) | ||
| } | ||
| request := NewStartRequest( | ||
| "./"+filepath.Base(os.Args[0]), | ||
| // filepath.Join(".", filepath.Base(os.Args[0])), | ||
| s.option.Module, | ||
| args, | ||
| allocation.Allocated, | ||
| os.Environ(), | ||
| int32(s.option.DriverPort), | ||
| ) | ||
|
|
||
| requestId := request.StartRequest.GetHashCode() | ||
| s.getRemoteExecutorStatus(requestId).RequestTime = time.Now() | ||
|
|
||
| // fmt.Printf("starting on %s: %v\n", allocation.Allocated, request) | ||
| if err := RemoteDirectExecute(allocation.Location.URL(), request); err != nil { | ||
| log.Printf("exeuction error %v: %v", err, request) | ||
| } | ||
| s.getRemoteExecutorStatus(requestId).StopTime = time.Now() | ||
| } | ||
|
|
||
| func (s *Scheduler) setupInputChannels(fc *flow.FlowContext, task *flow.Task, location resource.Location, waitGroup *sync.WaitGroup) { | ||
| if len(task.Inputs) > 0 { | ||
| return | ||
| } | ||
| ds := task.Outputs[0].Parent | ||
| if len(ds.ExternalInputChans) == 0 { | ||
| return | ||
| } | ||
| // connect local typed chan to remote raw chan | ||
| // write to the dataset location in the cluster so that the task can be retried if needed. | ||
| for i, inChan := range ds.ExternalInputChans { | ||
| inputChanName := fmt.Sprintf("%s-ct-%d-input-%d-p-%d", s.option.ExecutableFileHash, fc.Id, ds.Id, i) | ||
| // println("setup input channel for", task.Name(), "on", location.URL()) | ||
| s.shardLocator.SetShardLocation(inputChanName, location) | ||
| rawChan, err := netchan.GetDirectSendChannel(inputChanName, location.URL(), waitGroup) | ||
| if err != nil { | ||
| log.Panic(err) | ||
| } | ||
| // println("writing", inputChanName, "to", location.URL()) | ||
| netchan.ConnectTypedWriteChannelToRaw(inChan, rawChan, waitGroup) | ||
| } | ||
| } | ||
|
|
||
| func (s *Scheduler) setupOutputChannels(shards []*flow.DatasetShard, waitGroup *sync.WaitGroup) { | ||
| for _, shard := range shards { | ||
| ds := shard.Parent | ||
| if len(ds.ExternalOutputChans) == 0 { | ||
| continue | ||
| } | ||
| // connect remote raw chan to local typed chan | ||
| readChanName := s.option.ExecutableFileHash + "-" + shard.Name() | ||
| location, _ := s.shardLocator.GetShardLocation(readChanName) | ||
| rawChan, err := netchan.GetDirectReadChannel(readChanName, location.URL(), 1024) | ||
| if err != nil { | ||
| log.Panic(err) | ||
| } | ||
| for _, out := range ds.ExternalOutputChans { | ||
| ch := make(chan reflect.Value) | ||
| netchan.ConnectRawReadChannelToTyped(rawChan, ch, ds.Type, waitGroup) | ||
| waitGroup.Add(1) | ||
| go func() { | ||
| defer waitGroup.Done() | ||
| for v := range ch { | ||
| v = netchan.CleanObject(v, ds.Type, out.Type().Elem()) | ||
| out.Send(v) | ||
| } | ||
| }() | ||
| } | ||
| } | ||
| } |