/** De-register our {@link MesosLocation} and its children. */
@Override
public void stop() {
disconnectSensors();
sensors().set(SERVICE_UP, Boolean.FALSE);
deleteLocation();
Duration timeout = config().get(SHUTDOWN_TIMEOUT);
// Find all applications and stop, blocking for up to five minutes until ended
try {
Iterable<Entity> entities =
Iterables.filter(
getManagementContext().getEntityManager().getEntities(),
Predicates.and(
MesosUtils.sameCluster(this),
Predicates.not(EntityPredicates.applicationIdEqualTo(getApplicationId()))));
Set<Application> applications =
ImmutableSet.copyOf(
Iterables.transform(
entities,
new Function<Entity, Application>() {
@Override
public Application apply(Entity input) {
return input.getApplication();
}
}));
LOG.debug("Stopping applications: {}", Iterables.toString(applications));
Entities.invokeEffectorList(this, applications, Startable.STOP).get(timeout);
} catch (Exception e) {
LOG.warn("Error stopping applications", e);
}
// Stop all framework tasks in parallel
try {
Group frameworks = sensors().get(MESOS_FRAMEWORKS);
LOG.debug("Stopping framework tasks in: {}", Iterables.toString(frameworks.getMembers()));
Entities.invokeEffectorList(this, frameworks.getMembers(), Startable.STOP).get(timeout);
} catch (Exception e) {
LOG.warn("Error stopping frameworks", e);
}
// Stop anything else left over
// TODO Stop slave entities
try {
super.stop();
} catch (Exception e) {
LOG.warn("Error stopping children", e);
}
}
@Override
public void doStart(Collection<? extends Location> locs) {
List<Location> locations = MutableList.of();
sensors().set(SERVICE_UP, Boolean.FALSE);
ServiceStateLogic.setExpectedState(this, Lifecycle.STARTING);
LOG.info("Creating new MesosLocation");
createLocation(MutableMap.<String, Object>of());
// Start frameworks
try {
Group frameworks = sensors().get(MESOS_FRAMEWORKS);
Entities.invokeEffectorList(
this,
frameworks.getMembers(),
Startable.START,
ImmutableMap.of("locations", locations))
.getUnchecked();
} catch (Exception e) {
LOG.warn("Error starting frameworks", e);
ServiceStateLogic.setExpectedState(this, Lifecycle.ON_FIRE);
Exceptions.propagate(e);
}
super.doStart(locations);
connectSensors();
ServiceStateLogic.setExpectedState(this, Lifecycle.RUNNING);
sensors().set(SERVICE_UP, Boolean.TRUE);
}