Examples with LeaderActivationListener com.netflix.titus.api.common.LeaderActivationListener used on opensource projects

Example 1 with LeaderActivationListener

use of com.netflix.titus.api.common.LeaderActivationListener in project titus-control-plane by Netflix.

the class LeaderActivationCoordinator method activate.

private void activate() {
    if (!stateRef.compareAndSet(State.Awaiting, State.ElectedLeader)) {
        logger.debug("Activation process has been already attempted. Component is in: state={}", stateRef.get());
        return;
    }
    logger.info("Starting the leader activation process (activating {} services)...", services.size());
    Stopwatch allStart = Stopwatch.createStarted();
    List<LeaderActivationListener> activated = new ArrayList<>();
    for (LeaderActivationListener service : services) {
        String serviceName = service.getClass().getSimpleName();
        logger.info("Activating service {}...", serviceName);
        Stopwatch serviceStart = Stopwatch.createStarted();
        try {
            service.activate();
            activated.add(service);
            logger.info("Service {} started in {}", serviceName, serviceStart.elapsed(TimeUnit.MILLISECONDS));
        } catch (Exception e) {
            logger.error("Service activation failure. Rolling back", e);
            this.activatedServices = activated;
            try {
                deactivate();
            } finally {
                deactivationCallback.accept(e);
            }
            return;
        }
    }
    this.activatedServices = activated;
    this.activationTimestamp = clock.wallTime();
    logger.info("Activation process finished in: {}", DateTimeExt.toTimeUnitString(allStart.elapsed(TimeUnit.MILLISECONDS)));
}

Example 2 with LeaderActivationListener

use of com.netflix.titus.api.common.LeaderActivationListener in project titus-control-plane by Netflix.

the class LeaderActivationCoordinator method deactivate.

private void deactivate() {
    this.activationTimestamp = -1;
    State current = stateRef.getAndSet(State.Deactivated);
    if (current == State.Awaiting) {
        logger.info("Deactivating non-leader member");
        return;
    }
    if (current == State.Deactivated) {
        logger.debug("Already deactivated");
        return;
    }
    logger.info("Stopping the elected leader (deactivating {} services)...", activatedServices.size());
    Stopwatch allStart = Stopwatch.createStarted();
    List<LeaderActivationListener> deactivationList = new ArrayList<>(activatedServices);
    Collections.reverse(deactivationList);
    activatedServices.clear();
    for (LeaderActivationListener service : deactivationList) {
        String serviceName = service.getClass().getSimpleName();
        logger.info("Deactivating service {}...", serviceName);
        Stopwatch serviceStart = Stopwatch.createStarted();
        try {
            service.deactivate();
            logger.info("Service {} stopped in {}", serviceName, serviceStart.elapsed(TimeUnit.MILLISECONDS));
        } catch (Exception e) {
            logger.error("Failed to deactivate service: {}", serviceName);
        }
    }
    logger.info("Deactivation process finished in: {}", DateTimeExt.toTimeUnitString(allStart.elapsed(TimeUnit.MILLISECONDS)));
}