How to use handleConfigChange method of executor Package

Best K6 code snippet using executor.handleConfigChange

externally_controlled.go

Source:externally_controlled.go

...383	progDur := fmt.Sprintf("%s/%s", spentDuration, rs.duration)384	right[1] = progDur385	return progress, right386}387func (rs *externallyControlledRunState) handleConfigChange(oldCfg, newCfg ExternallyControlledConfigParams) error {388	executionState := rs.executor.executionState389	segment := executionState.Options.ExecutionSegment390	oldActiveVUs := segment.Scale(oldCfg.VUs.Int64)391	oldMaxVUs := segment.Scale(oldCfg.MaxVUs.Int64)392	newActiveVUs := segment.Scale(newCfg.VUs.Int64)393	newMaxVUs := segment.Scale(newCfg.MaxVUs.Int64)394	rs.executor.logger.WithFields(logrus.Fields{395		"oldActiveVUs": oldActiveVUs, "oldMaxVUs": oldMaxVUs,396		"newActiveVUs": newActiveVUs, "newMaxVUs": newMaxVUs,397	}).Debug("Updating execution configuration...")398	for i := oldMaxVUs; i < newMaxVUs; i++ {399		select { // check if the user didn't try to abort k6 while we're scaling up the VUs400		case <-rs.ctx.Done():401			return rs.ctx.Err()402		default: // do nothing403		}404		initVU, vuInitErr := executionState.InitializeNewVU(rs.ctx, rs.executor.logger)405		if vuInitErr != nil {406			return vuInitErr407		}408		vuHandle := rs.newManualVUHandle(initVU, rs.executor.logger.WithField("vuNum", i))409		go vuHandle.runLoopsIfPossible(rs.runIteration)410		rs.vuHandles = append(rs.vuHandles, vuHandle)411	}412	if oldActiveVUs < newActiveVUs {413		for i := oldActiveVUs; i < newActiveVUs; i++ {414			if !rs.currentlyPaused {415				if err := rs.vuHandles[i].start(); err != nil {416					// TODO: maybe just log it ?417					return err418				}419			}420		}421	} else {422		for i := newActiveVUs; i < oldActiveVUs; i++ {423			rs.vuHandles[i].hardStop()424		}425		for i := newActiveVUs; i < oldActiveVUs; i++ {426			rs.vuHandles[i].wg.Wait()427		}428	}429	if oldMaxVUs > newMaxVUs {430		for i := newMaxVUs; i < oldMaxVUs; i++ {431			rs.vuHandles[i].cancelVU()432			if i < rs.startMaxVUs {433				// return the initial planned VUs to the common buffer434				executionState.ReturnVU(rs.vuHandles[i].initVU, false)435			} else {436				executionState.ModInitializedVUsCount(-1)437			}438			rs.vuHandles[i] = nil439		}440		rs.vuHandles = rs.vuHandles[:newMaxVUs]441	}442	atomic.StoreInt64(rs.maxVUs, newMaxVUs)443	return nil444}445// Run constantly loops through as many iterations as possible on a variable446// dynamically controlled number of VUs either for the specified duration, or447// until the test is manually stopped.448// nolint:funlen,gocognit449func (mex *ExternallyControlled) Run(parentCtx context.Context, out chan<- stats.SampleContainer) (err error) {450	mex.configLock.RLock()451	// Safely get the current config - it's important that the close of the452	// hasStarted channel is inside of the lock, so that there are no data races453	// between it and the UpdateConfig() method.454	currentControlConfig := mex.currentControlConfig455	close(mex.hasStarted)456	mex.configLock.RUnlock()457	ctx, cancel := context.WithCancel(parentCtx)458	defer cancel()459	duration := time.Duration(currentControlConfig.Duration.Duration)460	if duration > 0 { // Only keep track of duration if it's not infinite461		go mex.stopWhenDurationIsReached(ctx, duration, cancel)462	}463	mex.logger.WithFields(464		logrus.Fields{"type": externallyControlledType, "duration": duration},465	).Debug("Starting executor run...")466	startMaxVUs := mex.executionState.Options.ExecutionSegment.Scale(mex.config.MaxVUs.Int64)467	runState := &externallyControlledRunState{468		ctx:             ctx,469		executor:        mex,470		startMaxVUs:     startMaxVUs,471		duration:        duration,472		vuHandles:       make([]*manualVUHandle, startMaxVUs),473		currentlyPaused: false,474		activeVUsCount:  new(int64),475		maxVUs:          new(int64),476		runIteration:    getIterationRunner(mex.executionState, mex.logger),477	}478	*runState.maxVUs = startMaxVUs479	if err = runState.retrieveStartMaxVUs(); err != nil {480		return err481	}482	ctx = lib.WithScenarioState(ctx, &lib.ScenarioState{483		Name:       mex.config.Name,484		Executor:   mex.config.Type,485		StartTime:  time.Now(),486		ProgressFn: runState.progressFn,487	})488	mex.progress.Modify(pb.WithProgress(runState.progressFn)) // Keep track of the progress489	go trackProgress(parentCtx, ctx, ctx, mex, runState.progressFn)490	err = runState.handleConfigChange( // Start by setting MaxVUs to the starting MaxVUs491		ExternallyControlledConfigParams{MaxVUs: mex.config.MaxVUs}, currentControlConfig,492	)493	if err != nil {494		return err495	}496	defer func() { // Make sure we release the VUs at the end497		err = runState.handleConfigChange(currentControlConfig, ExternallyControlledConfigParams{})498	}()499	for {500		select {501		case <-ctx.Done():502			return nil503		case updateConfigEvent := <-mex.newControlConfigs:504			err := runState.handleConfigChange(currentControlConfig, updateConfigEvent.newConfig)505			if err != nil {506				updateConfigEvent.err <- err507				if ctx.Err() == err {508					return nil // we've already returned an error to the API client, but k6 should stop normally509				}510				return err511			}512			currentControlConfig = updateConfigEvent.newConfig513			mex.configLock.Lock()514			mex.currentControlConfig = updateConfigEvent.newConfig515			mex.configLock.Unlock()516			updateConfigEvent.err <- nil517		case pauseEvent := <-mex.pauseEvents:518			if pauseEvent.isPaused == runState.currentlyPaused {...

handleConfigChange

Using AI Code Generation

1executor.handleConfigChange()2executor.handleConfigChange()3executor.handleConfigChange()4executor.handleConfigChange()5executor.handleConfigChange()6executor.handleConfigChange()7executor.handleConfigChange()8executor.handleConfigChange()9executor.handleConfigChange()10executor.handleConfigChange()11executor.handleConfigChange()12executor.handleConfigChange()13executor.handleConfigChange()14executor.handleConfigChange()15executor.handleConfigChange()16executor.handleConfigChange()17executor.handleConfigChange()18executor.handleConfigChange()19executor.handleConfigChange()20executor.handleConfigChange()21executor.handleConfigChange()

handleConfigChange

Using AI Code Generation

1import (2func main() {3    watcher, err := fsnotify.NewWatcher()4    if err != nil {5        fmt.Println("ERROR", err)6    }7    defer watcher.Close()8    done := make(chan bool)9    go func() {10        for {11            select {12                if !ok {13                }14                fmt.Println("EVENT! ", event)15                if event.Op&fsnotify.Write == fsnotify.Write {16                    fmt.Println("modified file: ", event.Name)17                }18                if event.Op&fsnotify.Create == fsnotify.Create {19                    fmt.Println("created file: ", event.Name)20                }21                if event.Op&fsnotify.Remove == fsnotify.Remove {22                    fmt.Println("removed file: ", event.Name)23                }24                if event.Op&fsnotify.Rename == fsnotify.Rename {25                    fmt.Println("renamed file: ", event.Name)26                }27                if event.Op&fsnotify.Chmod == fsnotify.Chmod {28                    fmt.Println("chmod file: ", event.Name)29                }30                if !ok {31                }32                fmt.Println("ERROR", err)33            }34        }35    }()36    err = watcher.Add("/tmp/test")37    if err != nil {38        fmt.Println("ERROR", err)39    }40}41import (42func main() {43    watcher, err := fsnotify.NewWatcher()44    if err != nil {45        fmt.Println("ERROR", err)46    }47    defer watcher.Close()48    done := make(chan bool)49    go func() {50        for {51            select {52                if !ok {53                }54                fmt.Println("EVENT! ", event)55                if event.Op&fsnotify.Write == fsnotify.Write {56                    fmt.Println("modified file: ", event.Name)57                }

handleConfigChange

Using AI Code Generation

1import (2func main() {3    var (4        zookeeperNodes = []string{"localhost:2181"}5    config := cluster.NewConfig()6    consumer, err = cluster.NewConsumer(zookeeperNodes, group, []string{topic}, config)7    if err != nil {8        log.Fatalln(err)9    }10    defer consumer.Close()11    go func() {12        for err := range consumer.Errors() {13            log.Println("Error: ", err.Error())14        }15    }()16    go func() {17        for note := range consumer.Notifications() {18            log.Println("Rebalanced: ", note)19        }20    }()21    for {22        select {23        case msg, ok := <-consumer.Messages():24            if ok {25                fmt.Printf("Message on %s: %s\n", msg.Topic, string(msg.Value))26                consumer.MarkOffset(msg, "")27            }28        }29    }30}31import (32func main() {33    var (34        zookeeperNodes = []string{"localhost:2181"}35    config := cluster.NewConfig()36    consumer, err = cluster.NewConsumer(zookeeperNodes, group, []string{topic}, config)37    if err != nil {38        log.Fatalln(err)39    }40    defer consumer.Close()41    go func() {

handleConfigChange

Using AI Code Generation

1import (2func main() {3	executor := NewExecutor()4	go executor.Start()5	signals := make(chan os.Signal, 1)6	signal.Notify(signals, syscall.SIGINT, syscall.SIGTERM)7	executor.Stop()8}9import (10func main() {11	executor := NewExecutor()12	go executor.Start()13	signals := make(chan os.Signal, 1)14	signal.Notify(signals, syscall.SIGINT, syscall.SIGTERM)15	executor.Stop()16}17import (18func main() {19	executor := NewExecutor()20	go executor.Start()21	signals := make(chan os.Signal, 1)22	signal.Notify(signals, syscall.SIGINT, syscall.SIGTERM)23	executor.Stop()24}25import (26func main() {27	executor := NewExecutor()28	go executor.Start()29	signals := make(chan os.Signal, 1)30	signal.Notify(signals, syscall.SIGINT, syscall.SIGTERM)31	executor.Stop()32}33import (34func main() {

handleConfigChange

Using AI Code Generation

1import (2type Executor struct {3}4func (e *Executor) handleConfigChange() {5}6import (7type Executor struct {8}9func (e *Executor) handleConfigChange() {10}11import (12type Executor struct {13}14func (e *Executor) handleConfigChange() {15}16import (17type Executor struct {18}19func (e *Executor) handleConfigChange() {20}21import (22type Executor struct {23}24func (e *Executor) handleConfigChange() {25}26import (27type Executor struct {28}29func (e *Executor) handleConfigChange() {30}31import (32type Executor struct {33}34func (e *Executor) handleConfigChange() {35}36import (37type Executor struct {38}39func (e *Executor) handleConfigChange() {40}41import (42type Executor struct {43}44func (e *Executor) handleConfigChange()

handleConfigChange

Using AI Code Generation

1import (2type Executor struct {3}4func (e *Executor) handleConfigChange() {5	fmt.Println("handleConfigChange called")6}7func main() {8	executor := &Executor{}9	method := reflect.ValueOf(executor).MethodByName("handleConfigChange")10	method.Call(nil)11}

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.