Examples with ContainerResourceLocalizedEvent org.apache.hadoop.yarn.server.nodemanager.containermanager.container.ContainerResourceLocalizedEvent used on opensource projects

Example 1 with ContainerResourceLocalizedEvent

use of org.apache.hadoop.yarn.server.nodemanager.containermanager.container.ContainerResourceLocalizedEvent in project hadoop by apache.

the class DummyContainerManager method createResourceLocalizationService.

@Override
@SuppressWarnings("unchecked")
protected ResourceLocalizationService createResourceLocalizationService(ContainerExecutor exec, DeletionService deletionContext, Context context) {
    return new ResourceLocalizationService(super.dispatcher, exec, deletionContext, super.dirsHandler, context) {

        @Override
        public void handle(LocalizationEvent event) {
            switch(event.getType()) {
                case INIT_APPLICATION_RESOURCES:
                    Application app = ((ApplicationLocalizationEvent) event).getApplication();
                    // Simulate event from ApplicationLocalization.
                    dispatcher.getEventHandler().handle(new ApplicationInitedEvent(app.getAppId()));
                    break;
                case LOCALIZE_CONTAINER_RESOURCES:
                    ContainerLocalizationRequestEvent rsrcReqs = (ContainerLocalizationRequestEvent) event;
                    // simulate localization of all requested resources
                    for (Collection<LocalResourceRequest> rc : rsrcReqs.getRequestedResources().values()) {
                        for (LocalResourceRequest req : rc) {
                            LOG.info("DEBUG: " + req + ":" + rsrcReqs.getContainer().getContainerId());
                            dispatcher.getEventHandler().handle(new ContainerResourceLocalizedEvent(rsrcReqs.getContainer().getContainerId(), req, new Path("file:///local" + req.getPath().toUri().getPath())));
                        }
                    }
                    break;
                case CLEANUP_CONTAINER_RESOURCES:
                    Container container = ((ContainerLocalizationEvent) event).getContainer();
                    // TODO: delete the container dir
                    this.dispatcher.getEventHandler().handle(new ContainerEvent(container.getContainerId(), ContainerEventType.CONTAINER_RESOURCES_CLEANEDUP));
                    break;
                case DESTROY_APPLICATION_RESOURCES:
                    Application application = ((ApplicationLocalizationEvent) event).getApplication();
                    // decrement reference counts of all resources associated with this
                    // app
                    this.dispatcher.getEventHandler().handle(new ApplicationEvent(application.getAppId(), ApplicationEventType.APPLICATION_RESOURCES_CLEANEDUP));
                    break;
                default:
                    fail("Unexpected event: " + event.getType());
            }
        }
    };
}

Example 2 with ContainerResourceLocalizedEvent

use of org.apache.hadoop.yarn.server.nodemanager.containermanager.container.ContainerResourceLocalizedEvent in project hadoop by apache.

the class TestLocalResourcesTrackerImpl method testLocalResourceCache.

@Test(timeout = 10000)
@SuppressWarnings("unchecked")
public void testLocalResourceCache() {
    String user = "testuser";
    DrainDispatcher dispatcher = null;
    try {
        Configuration conf = new Configuration();
        dispatcher = createDispatcher(conf);
        EventHandler<LocalizerEvent> localizerEventHandler = mock(EventHandler.class);
        EventHandler<ContainerEvent> containerEventHandler = mock(EventHandler.class);
        // Registering event handlers.
        dispatcher.register(LocalizerEventType.class, localizerEventHandler);
        dispatcher.register(ContainerEventType.class, containerEventHandler);
        ConcurrentMap<LocalResourceRequest, LocalizedResource> localrsrc = new ConcurrentHashMap<LocalResourceRequest, LocalizedResource>();
        LocalResourcesTracker tracker = new LocalResourcesTrackerImpl(user, null, dispatcher, localrsrc, true, conf, new NMNullStateStoreService(), null);
        LocalResourceRequest lr = createLocalResourceRequest(user, 1, 1, LocalResourceVisibility.PUBLIC);
        // Creating 2 containers for same application which will be requesting
        // same local resource.
        // Container 1 requesting local resource.
        ContainerId cId1 = BuilderUtils.newContainerId(1, 1, 1, 1);
        LocalizerContext lc1 = new LocalizerContext(user, cId1, null);
        ResourceEvent reqEvent1 = new ResourceRequestEvent(lr, LocalResourceVisibility.PRIVATE, lc1);
        // No resource request is initially present in local cache
        Assert.assertEquals(0, localrsrc.size());
        // Container-1 requesting local resource.
        tracker.handle(reqEvent1);
        dispatcher.await();
        // New localized Resource should have been added to local resource map
        // and the requesting container will be added to its waiting queue.
        Assert.assertEquals(1, localrsrc.size());
        Assert.assertTrue(localrsrc.containsKey(lr));
        Assert.assertEquals(1, localrsrc.get(lr).getRefCount());
        Assert.assertTrue(localrsrc.get(lr).ref.contains(cId1));
        Assert.assertEquals(ResourceState.DOWNLOADING, localrsrc.get(lr).getState());
        // Container 2 requesting the resource
        ContainerId cId2 = BuilderUtils.newContainerId(1, 1, 1, 2);
        LocalizerContext lc2 = new LocalizerContext(user, cId2, null);
        ResourceEvent reqEvent2 = new ResourceRequestEvent(lr, LocalResourceVisibility.PRIVATE, lc2);
        tracker.handle(reqEvent2);
        dispatcher.await();
        // Container 2 should have been added to the waiting queue of the local
        // resource
        Assert.assertEquals(2, localrsrc.get(lr).getRefCount());
        Assert.assertTrue(localrsrc.get(lr).ref.contains(cId2));
        // Failing resource localization
        ResourceEvent resourceFailedEvent = new ResourceFailedLocalizationEvent(lr, (new Exception("test").getMessage()));
        // Backing up the resource to track its state change as it will be
        // removed after the failed event.
        LocalizedResource localizedResource = localrsrc.get(lr);
        tracker.handle(resourceFailedEvent);
        dispatcher.await();
        // After receiving failed resource event; all waiting containers will be
        // notified with Container Resource Failed Event.
        Assert.assertEquals(0, localrsrc.size());
        verify(containerEventHandler, timeout(1000).times(2)).handle(isA(ContainerResourceFailedEvent.class));
        Assert.assertEquals(ResourceState.FAILED, localizedResource.getState());
        // Container 1 trying to release the resource (This resource is already
        // deleted from the cache. This call should return silently without
        // exception.
        ResourceReleaseEvent relEvent1 = new ResourceReleaseEvent(lr, cId1);
        tracker.handle(relEvent1);
        dispatcher.await();
        // Container-3 now requests for the same resource. This request call
        // is coming prior to Container-2's release call.
        ContainerId cId3 = BuilderUtils.newContainerId(1, 1, 1, 3);
        LocalizerContext lc3 = new LocalizerContext(user, cId3, null);
        ResourceEvent reqEvent3 = new ResourceRequestEvent(lr, LocalResourceVisibility.PRIVATE, lc3);
        tracker.handle(reqEvent3);
        dispatcher.await();
        // Local resource cache now should have the requested resource and the
        // number of waiting containers should be 1.
        Assert.assertEquals(1, localrsrc.size());
        Assert.assertTrue(localrsrc.containsKey(lr));
        Assert.assertEquals(1, localrsrc.get(lr).getRefCount());
        Assert.assertTrue(localrsrc.get(lr).ref.contains(cId3));
        // Container-2 Releases the resource
        ResourceReleaseEvent relEvent2 = new ResourceReleaseEvent(lr, cId2);
        tracker.handle(relEvent2);
        dispatcher.await();
        // Making sure that there is no change in the cache after the release.
        Assert.assertEquals(1, localrsrc.size());
        Assert.assertTrue(localrsrc.containsKey(lr));
        Assert.assertEquals(1, localrsrc.get(lr).getRefCount());
        Assert.assertTrue(localrsrc.get(lr).ref.contains(cId3));
        // Sending ResourceLocalizedEvent to tracker. In turn resource should
        // send Container Resource Localized Event to waiting containers.
        Path localizedPath = new Path("/tmp/file1");
        ResourceLocalizedEvent localizedEvent = new ResourceLocalizedEvent(lr, localizedPath, 123L);
        tracker.handle(localizedEvent);
        dispatcher.await();
        // Verifying ContainerResourceLocalizedEvent .
        verify(containerEventHandler, timeout(1000).times(1)).handle(isA(ContainerResourceLocalizedEvent.class));
        Assert.assertEquals(ResourceState.LOCALIZED, localrsrc.get(lr).getState());
        Assert.assertEquals(1, localrsrc.get(lr).getRefCount());
        // Container-3 releasing the resource.
        ResourceReleaseEvent relEvent3 = new ResourceReleaseEvent(lr, cId3);
        tracker.handle(relEvent3);
        dispatcher.await();
        Assert.assertEquals(0, localrsrc.get(lr).getRefCount());
    } finally {
        if (dispatcher != null) {
            dispatcher.stop();
        }
    }
}