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Automation Advisor
K6
executor
handleConfigChange

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}

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