lib/worker(engine): refactor BaseWorker (Part I)

engine/dm/dump_worker.go

@@ -78,11 +78,6 @@ func (d *dumpWorker) Workload() model.RescUnit {
 	return 0
 }
 
-func (d *dumpWorker) OnMasterFailover(reason lib.MasterFailoverReason) error {
-	log.L().Info("dumpWorker.OnMasterFailover")
-	return nil
-}
-
 func (d *dumpWorker) OnMasterMessage(topic p2p.Topic, message p2p.MessageValue) error {
 	log.L().Info("dumpWorker.OnMasterMessage", zap.Any("message", message))
 	return nil

engine/dm/load_worker.go

@@ -79,11 +79,6 @@ func (l *loadWorker) Workload() model.RescUnit {
 	return 0
 }
 
-func (l *loadWorker) OnMasterFailover(reason lib.MasterFailoverReason) error {
-	log.L().Info("loadWorker.OnMasterFailover")
-	return nil
-}
-
 func (l *loadWorker) OnMasterMessage(topic p2p.Topic, message p2p.MessageValue) error {
 	log.L().Info("loadWorker.OnMasterMessage", zap.Any("message", message))
 	return nil

engine/dm/sync_worker.go

@@ -78,11 +78,6 @@ func (s *syncWorker) Workload() model.RescUnit {
 	return 0
 }
 
-func (s *syncWorker) OnMasterFailover(reason lib.MasterFailoverReason) error {
-	log.L().Info("syncWorker.OnMasterFailover")
-	return nil
-}
-
 func (s *syncWorker) OnMasterMessage(topic p2p.Topic, message p2p.MessageValue) error {
 	log.L().Info("syncWorker.OnMasterMessage", zap.Any("message", message))
 	return nil

engine/executor/cvsTask/cvstask.go

@@ -199,11 +199,6 @@ func (task *cvsTask) Workload() model.RescUnit {
 	return 1
 }
 
-// OnMasterFailover is called when the master is failed over.
-func (task *cvsTask) OnMasterFailover(reason lib.MasterFailoverReason) error {
-	return nil
-}
-
 func (task *cvsTask) OnMasterMessage(topic p2p.Topic, message p2p.MessageValue) error {
 	switch msg := message.(type) {
 	case *libModel.StatusChangeRequest:

engine/jobmaster/cvsJob/cvsJobMaster.go

@@ -349,22 +349,11 @@ func (jm *JobMaster) Workload() model.RescUnit {
 	return 2
 }
 
-// OnMasterFailover implements JobMasterImpl.OnMasterFailover
-func (jm *JobMaster) OnMasterFailover(reason lib.MasterFailoverReason) error {
-	return nil
-}
-
 // OnMasterMessage implements JobMasterImpl.OnMasterMessage
 func (jm *JobMaster) OnMasterMessage(topic p2p.Topic, message p2p.MessageValue) error {
 	return nil
 }
 
-// OnJobManagerFailover implements JobMasterImpl.OnJobManagerFailover
-func (jm *JobMaster) OnJobManagerFailover(reason lib.MasterFailoverReason) error {
-	log.L().Info("cvs jobmaster: OnJobManagerFailover", zap.Any("reason", reason))
-	return nil
-}
-
 // OnJobManagerMessage implements JobMasterImpl.OnJobManagerMessage
 func (jm *JobMaster) OnJobManagerMessage(topic p2p.Topic, message p2p.MessageValue) error {
 	log.L().Info("cvs jobmaster: OnJobManagerMessage", zap.Any("message", message))

engine/jobmaster/dm/dm_jobmaster.go

@@ -256,18 +256,6 @@ func (jm *JobMaster) Workload() model.RescUnit {
 	return 2
 }
 
-// OnMasterFailover implements JobMasterImpl.OnMasterFailover
-func (jm *JobMaster) OnMasterFailover(reason lib.MasterFailoverReason) error {
-	// No need to do anything here
-	return nil
-}
-
-// OnJobManagerFailover implements JobMasterImpl.OnJobManagerFailover
-func (jm *JobMaster) OnJobManagerFailover(reason lib.MasterFailoverReason) error {
-	// No need to do anything here
-	return nil
-}
-
 // IsJobMasterImpl implements JobMasterImpl.IsJobMasterImpl
 func (jm *JobMaster) IsJobMasterImpl() {
 	panic("unreachable")

engine/jobmaster/dm/dm_jobmaster_test.go

@@ -302,8 +302,6 @@ func (t *testDMJobmasterSuite) TestDMJobmaster() {
 	require.NoError(t.T(), jm.OnWorkerStatusUpdated(workerHandle1, &libModel.WorkerStatus{ExtBytes: bytes1}))
 	require.NoError(t.T(), jm.OnJobManagerMessage("", ""))
 	require.NoError(t.T(), jm.OnMasterMessage("", ""))
-	require.NoError(t.T(), jm.OnJobManagerFailover(lib.MasterFailoverReason{}))
-	require.NoError(t.T(), jm.OnMasterFailover(lib.MasterFailoverReason{}))
 	require.Equal(t.T(), jm.Workload(), model.RescUnit(2))
 	require.NoError(t.T(), jm.OnWorkerStatusUpdated(workerHandle1, &libModel.WorkerStatus{ExtBytes: bytes1}))
 	require.EqualError(t.T(), jm.OnWorkerMessage(workerHandle1, "", dmpkg.MessageWithID{}), "request 0 not found")

engine/jobmaster/example/worker_impl.go

@@ -112,11 +112,6 @@ func (w *exampleWorker) Status() libModel.WorkerStatus {
 	return libModel.WorkerStatus{Code: code}
 }
 
-func (w *exampleWorker) OnMasterFailover(reason lib.MasterFailoverReason) error {
-	log.L().Info("OnMasterFailover")
-	return nil
-}
-
 func (w *exampleWorker) OnMasterMessage(topic p2p.Topic, message p2p.MessageValue) error {
 	log.L().Info("OnMasterMessage", zap.Any("message", message))
 	return nil

engine/lib/base_jobmaster.go

@@ -77,7 +77,6 @@ type JobMasterImpl interface {
 	MasterImpl
 
 	Workload() model.RescUnit
-	OnJobManagerFailover(reason MasterFailoverReason) error
 	OnJobManagerMessage(topic p2p.Topic, message interface{}) error
 	// IsJobMasterImpl is an empty function used to prevent accidental implementation
 	// of this interface.
@@ -287,10 +286,6 @@ func (j *jobMasterImplAsWorkerImpl) Workload() model.RescUnit {
 	return j.inner.Workload()
 }
 
-func (j *jobMasterImplAsWorkerImpl) OnMasterFailover(reason MasterFailoverReason) error {
-	return j.inner.OnJobManagerFailover(reason)
-}
-
 func (j *jobMasterImplAsWorkerImpl) OnMasterMessage(topic p2p.Topic, message interface{}) error {
 	return j.inner.OnJobManagerMessage(topic, message)
 }

engine/lib/base_jobmaster_test.go

@@ -122,14 +122,6 @@ func (m *testJobMasterImpl) Workload() model.RescUnit {
 	return args.Get(0).(model.RescUnit)
 }
 
-func (m *testJobMasterImpl) OnJobManagerFailover(reason MasterFailoverReason) error {
-	m.mu.Lock()
-	defer m.mu.Unlock()
-
-	args := m.Called(reason)
-	return args.Error(0)
-}
-
 func (m *testJobMasterImpl) OnJobManagerMessage(topic p2p.Topic, message p2p.MessageValue) error {
 	m.mu.Lock()
 	defer m.mu.Unlock()

engine/lib/fake/fake_master.go

@@ -124,12 +124,6 @@ type businessStatus struct {
 	status map[libModel.WorkerID]*dummyWorkerStatus
 }
 
-// OnJobManagerFailover implements JobMasterImpl.OnJobManagerFailover
-func (m *Master) OnJobManagerFailover(reason lib.MasterFailoverReason) error {
-	log.L().Info("FakeMaster: OnJobManagerFailover", zap.Any("reason", reason))
-	return nil
-}
-
 // OnJobManagerMessage implements JobMasterImpl.OnJobManagerMessage
 func (m *Master) OnJobManagerMessage(topic p2p.Topic, message p2p.MessageValue) error {
 	log.L().Info("FakeMaster: OnJobManagerMessage", zap.Any("message", message))
@@ -463,12 +457,6 @@ func (m *Master) CloseImpl(ctx context.Context) error {
 	return nil
 }
 
-// OnMasterFailover implements MasterImpl.OnMasterFailover
-func (m *Master) OnMasterFailover(reason lib.MasterFailoverReason) error {
-	log.L().Info("FakeMaster: OnMasterFailover", zap.Stack("stack"))
-	return nil
-}
-
 // OnMasterMessage implements MasterImpl.OnMasterMessage
 func (m *Master) OnMasterMessage(topic p2p.Topic, message p2p.MessageValue) error {
 	log.L().Info("FakeMaster: OnMasterMessage", zap.Any("message", message))

engine/lib/fake/fake_worker.go

@@ -187,10 +187,6 @@ func (d *dummyWorker) Workload() model.RescUnit {
 	return model.RescUnit(10)
 }
 
-func (d *dummyWorker) OnMasterFailover(_ lib.MasterFailoverReason) error {
-	return nil
-}
-
 func (d *dummyWorker) OnMasterMessage(topic p2p.Topic, message p2p.MessageValue) error {
 	log.L().Info("fakeWorker: OnMasterMessage", zap.Any("message", message))
 	switch msg := message.(type) {

engine/lib/mock_worker_impl.go

@@ -89,16 +89,6 @@ func (w *mockWorkerImpl) Status() libModel.WorkerStatus {
 	return args.Get(0).(libModel.WorkerStatus)
 }
 
-func (w *mockWorkerImpl) OnMasterFailover(reason MasterFailoverReason) error {
-	w.mu.Lock()
-	defer w.mu.Unlock()
-
-	w.failoverCount.Add(1)
-
-	args := w.Called(reason)
-	return args.Error(0)
-}
-
 func (w *mockWorkerImpl) OnMasterMessage(topic p2p.Topic, message p2p.MessageValue) error {
 	w.mu.Lock()
 	defer w.mu.Unlock()

engine/lib/statusutil/master_info.go

@@ -29,7 +29,7 @@ type MasterInfoProvider interface {
 	MasterID() libModel.MasterID
 	MasterNode() p2p.NodeID
 	Epoch() libModel.Epoch
-	RefreshMasterInfo(ctx context.Context) error
+	SyncRefreshMasterInfo(ctx context.Context) error
 }
 
 // MockMasterInfoProvider defines a mock provider that implements MasterInfoProvider
@@ -66,8 +66,8 @@ func (p *MockMasterInfoProvider) Epoch() libModel.Epoch {
 	return p.epoch
 }
 
-// RefreshMasterInfo implements MasterInfoProvider.RefreshMasterInfo
-func (p *MockMasterInfoProvider) RefreshMasterInfo(ctx context.Context) error {
+// SyncRefreshMasterInfo implements MasterInfoProvider.RefreshMasterInfo
+func (p *MockMasterInfoProvider) SyncRefreshMasterInfo(ctx context.Context) error {
 	p.refreshCount.Add(1)
 	return nil
 }

engine/lib/statusutil/writer.go

@@ -114,7 +114,7 @@ func (w *Writer) sendStatusMessageWithRetry(
 		})
 		if err != nil {
 			if derrors.ErrExecutorNotFoundForMessage.Equal(err) {
-				if err := w.masterInfo.RefreshMasterInfo(ctx); err != nil {
+				if err := w.masterInfo.SyncRefreshMasterInfo(ctx); err != nil {
 					log.L().Warn("failed to refresh master info",
 						zap.String("worker-id", w.workerID),
 						zap.String("master-id", w.masterInfo.MasterID()),