Examples with JobManagerReconcilerEvent com.netflix.titus.master.jobmanager.service.event.JobManagerReconcilerEvent used on opensource projects

Example 6 with JobManagerReconcilerEvent

use of com.netflix.titus.master.jobmanager.service.event.JobManagerReconcilerEvent in project titus-control-plane by Netflix.

the class BasicTaskActions method writeReferenceTaskToStore.

/**
 * Write updated task record to a store. If a task is completed, remove it from the scheduling service.
 * This command calls {@link JobStore#updateTask(Task)}, which assumes that the task record was created already.
 */
public static TitusChangeAction writeReferenceTaskToStore(JobStore titusStore, ReconciliationEngine<JobManagerReconcilerEvent> engine, String taskId, CallMetadata callMetadata, TitusRuntime titusRuntime) {
    return TitusChangeAction.newAction("writeReferenceTaskToStore").trigger(V3JobOperations.Trigger.Reconciler).id(taskId).summary("Persisting task to the store").callMetadata(callMetadata).changeWithModelUpdate(self -> {
        Optional<EntityHolder> taskHolder = engine.getReferenceView().findById(taskId);
        if (!taskHolder.isPresent()) {
            // Should never happen
            titusRuntime.getCodeInvariants().inconsistent("Reference task with id %s not found.", taskId);
            return Observable.empty();
        }
        Task referenceTask = taskHolder.get().getEntity();
        return titusStore.updateTask(referenceTask).andThen(Observable.fromCallable(() -> {
            TitusModelAction modelUpdateAction = TitusModelAction.newModelUpdate(self).taskUpdate(storeRoot -> {
                EntityHolder storedHolder = EntityHolder.newRoot(referenceTask.getId(), referenceTask);
                return Pair.of(storeRoot.addChild(storedHolder), storedHolder);
            });
            return ModelActionHolder.store(modelUpdateAction);
        }));
    });
}

Example 7 with JobManagerReconcilerEvent

use of com.netflix.titus.master.jobmanager.service.event.JobManagerReconcilerEvent in project titus-control-plane by Netflix.

the class KillInitiatedActions method reconcilerInitiatedAllTasksKillInitiated.

/**
 * For all active tasks, send terminate command to the compute provider, and change their state to {@link TaskState#KillInitiated}.
 * This method is used for internal state reconciliation.
 */
public static List<ChangeAction> reconcilerInitiatedAllTasksKillInitiated(ReconciliationEngine<JobManagerReconcilerEvent> engine, JobServiceRuntime runtime, JobStore jobStore, String reasonCode, String reason, int concurrencyLimit, VersionSupplier versionSupplier, TitusRuntime titusRuntime) {
    List<ChangeAction> result = new ArrayList<>();
    EntityHolder runningView = engine.getRunningView();
    Set<String> runningTaskIds = new HashSet<>();
    runningView.getChildren().forEach(taskHolder -> runningTaskIds.add(taskHolder.<Task>getEntity().getId()));
    // Immediately finish Accepted tasks, which are not yet in the running model.
    for (EntityHolder entityHolder : engine.getReferenceView().getChildren()) {
        if (result.size() >= concurrencyLimit) {
            return result;
        }
        Task task = entityHolder.getEntity();
        TaskState state = task.getStatus().getState();
        if (state == TaskState.Accepted && !runningTaskIds.contains(task.getId())) {
            result.add(BasicTaskActions.updateTaskAndWriteItToStore(task.getId(), engine, taskRef -> JobFunctions.changeTaskStatus(taskRef, TaskState.Finished, reasonCode, reason, titusRuntime.getClock()), jobStore, V3JobOperations.Trigger.Reconciler, reason, versionSupplier, titusRuntime, JobManagerConstants.RECONCILER_CALLMETADATA.toBuilder().withCallReason(reason).build()));
        }
    }
    // Move running tasks to KillInitiated state
    for (EntityHolder taskHolder : runningView.getChildren()) {
        if (result.size() >= concurrencyLimit) {
            return result;
        }
        Task task = taskHolder.getEntity();
        TaskState state = task.getStatus().getState();
        if (state != TaskState.KillInitiated && state != TaskState.Finished) {
            result.add(reconcilerInitiatedTaskKillInitiated(engine, task, runtime, jobStore, versionSupplier, reasonCode, reason, titusRuntime));
        }
    }
    return result;
}

Example 8 with JobManagerReconcilerEvent

use of com.netflix.titus.master.jobmanager.service.event.JobManagerReconcilerEvent in project titus-control-plane by Netflix.

the class KillInitiatedActions method userInitiateTaskKillAction.

/**
 * Change a task to {@link TaskState#KillInitiated} state, store it, and send the kill command to the compute provider.
 * All models are updated when both operations complete.
 * This method is used for user initiated kill operations, so the store operation happens before response is sent back to the user.
 */
public static ChangeAction userInitiateTaskKillAction(ReconciliationEngine<JobManagerReconcilerEvent> engine, JobServiceRuntime executionContext, JobStore jobStore, VersionSupplier versionSupplier, String taskId, boolean shrink, boolean preventMinSizeUpdate, String reasonCode, String reason, TitusRuntime titusRuntime, CallMetadata callMetadata) {
    return TitusChangeAction.newAction("userInitiateTaskKill").id(taskId).trigger(V3JobOperations.Trigger.API).summary(reason).callMetadata(callMetadata).changeWithModelUpdates(self -> JobEntityHolders.toTaskObservable(engine, taskId, titusRuntime).flatMap(task -> {
        TaskState taskState = task.getStatus().getState();
        if (taskState == TaskState.KillInitiated || taskState == TaskState.Finished) {
            return Observable.just(Collections.<ModelActionHolder>emptyList());
        }
        if (shrink) {
            Job<ServiceJobExt> job = engine.getReferenceView().getEntity();
            Capacity capacity = job.getJobDescriptor().getExtensions().getCapacity();
            if (preventMinSizeUpdate && capacity.getDesired() <= capacity.getMin()) {
                return Observable.<List<ModelActionHolder>>error(JobManagerException.terminateAndShrinkNotAllowed(job, task));
            }
        }
        Task taskWithKillInitiated = VersionSuppliers.nextVersion(JobFunctions.changeTaskStatus(task, TaskState.KillInitiated, reasonCode, reason, titusRuntime.getClock()), versionSupplier);
        Callable<List<ModelActionHolder>> modelUpdateActions = () -> JobEntityHolders.expectTask(engine, task.getId(), titusRuntime).map(current -> {
            List<ModelActionHolder> updateActions = new ArrayList<>();
            TitusModelAction stateUpdateAction = TitusModelAction.newModelUpdate(self).taskUpdate(taskWithKillInitiated);
            updateActions.addAll(ModelActionHolder.allModels(stateUpdateAction));
            if (shrink) {
                TitusModelAction shrinkAction = createShrinkAction(self, versionSupplier);
                updateActions.add(ModelActionHolder.reference(shrinkAction));
            }
            return updateActions;
        }).orElse(Collections.emptyList());
        return jobStore.updateTask(taskWithKillInitiated).andThen(createKillAction(executionContext, task)).andThen(Observable.fromCallable(modelUpdateActions));
    }));
}

Example 9 with JobManagerReconcilerEvent

use of com.netflix.titus.master.jobmanager.service.event.JobManagerReconcilerEvent in project titus-control-plane by Netflix.

the class DifferenceResolverUtils method findTaskStateTimeouts.

/**
 * Find all tasks that are stuck in a specific state. The number of {@link ChangeAction changes} will be limited
 * by the {@link TokenBucket stuckInStateRateLimiter}
 */
public static List<ChangeAction> findTaskStateTimeouts(ReconciliationEngine<JobManagerReconcilerEvent> engine, JobView runningJobView, JobManagerConfiguration configuration, JobServiceRuntime runtime, JobStore jobStore, VersionSupplier versionSupplier, TokenBucket stuckInStateRateLimiter, TitusRuntime titusRuntime) {
    Clock clock = titusRuntime.getClock();
    List<ChangeAction> actions = new ArrayList<>();
    runningJobView.getJobHolder().getChildren().forEach(taskHolder -> {
        Task task = taskHolder.getEntity();
        TaskState taskState = task.getStatus().getState();
        if (JobFunctions.isBatchJob(runningJobView.getJob()) && taskState == TaskState.Started) {
            Job<BatchJobExt> batchJob = runningJobView.getJob();
            // We expect runtime limit to be always set, so this is just extra safety measure.
            long runtimeLimitMs = Math.max(BatchJobExt.RUNTIME_LIMIT_MIN, batchJob.getJobDescriptor().getExtensions().getRuntimeLimitMs());
            long deadline = task.getStatus().getTimestamp() + runtimeLimitMs;
            if (deadline < clock.wallTime()) {
                actions.add(KillInitiatedActions.reconcilerInitiatedTaskKillInitiated(engine, task, runtime, jobStore, versionSupplier, TaskStatus.REASON_RUNTIME_LIMIT_EXCEEDED, "Task running too long (runtimeLimit=" + runtimeLimitMs + "ms)", titusRuntime));
            }
            return;
        }
        TaskTimeoutChangeActions.TimeoutStatus timeoutStatus = TaskTimeoutChangeActions.getTimeoutStatus(taskHolder, clock);
        switch(timeoutStatus) {
            case Ignore:
            case Pending:
                break;
            case NotSet:
                long timeoutMs = -1;
                switch(taskState) {
                    case Launched:
                        timeoutMs = configuration.getTaskInLaunchedStateTimeoutMs();
                        break;
                    case StartInitiated:
                        timeoutMs = isBatch(runningJobView.getJob()) ? configuration.getBatchTaskInStartInitiatedStateTimeoutMs() : configuration.getServiceTaskInStartInitiatedStateTimeoutMs();
                        break;
                    case KillInitiated:
                        timeoutMs = configuration.getTaskInKillInitiatedStateTimeoutMs();
                        break;
                }
                if (timeoutMs > 0) {
                    actions.add(TaskTimeoutChangeActions.setTimeout(taskHolder.getId(), task.getStatus().getState(), timeoutMs, clock));
                }
                break;
            case TimedOut:
                if (!stuckInStateRateLimiter.tryTake()) {
                    break;
                }
                if (task.getStatus().getState() == TaskState.KillInitiated) {
                    int attempts = TaskTimeoutChangeActions.getKillInitiatedAttempts(taskHolder) + 1;
                    if (attempts >= configuration.getTaskKillAttempts()) {
                        actions.add(BasicTaskActions.updateTaskInRunningModel(task.getId(), V3JobOperations.Trigger.Reconciler, configuration, engine, taskParam -> Optional.of(taskParam.toBuilder().withStatus(taskParam.getStatus().toBuilder().withState(TaskState.Finished).withReasonCode(TaskStatus.REASON_STUCK_IN_KILLING_STATE).withReasonMessage("stuck in " + taskState + "state").build()).build()), "TimedOut in KillInitiated state", versionSupplier, titusRuntime, JobManagerConstants.RECONCILER_CALLMETADATA.toBuilder().withCallReason("Kill initiated").build()));
                    } else {
                        actions.add(TaskTimeoutChangeActions.incrementTaskKillAttempt(task.getId(), configuration.getTaskInKillInitiatedStateTimeoutMs(), clock));
                        actions.add(KillInitiatedActions.reconcilerInitiatedTaskKillInitiated(engine, task, runtime, jobStore, versionSupplier, TaskStatus.REASON_STUCK_IN_KILLING_STATE, "Another kill attempt (" + (attempts + 1) + ')', titusRuntime));
                    }
                } else {
                    actions.add(KillInitiatedActions.reconcilerInitiatedTaskKillInitiated(engine, task, runtime, jobStore, versionSupplier, TaskStatus.REASON_STUCK_IN_STATE, "Task stuck in " + taskState + " state", titusRuntime));
                }
                break;
        }
    });
    return actions;
}