Examples with PublicLocalizer org.apache.hadoop.yarn.server.nodemanager.containermanager.localizer.ResourceLocalizationService.PublicLocalizer used on opensource projects

Example 1 with PublicLocalizer

use of org.apache.hadoop.yarn.server.nodemanager.containermanager.localizer.ResourceLocalizationService.PublicLocalizer in project hadoop by apache.

the class TestResourceLocalizationService method testPublicResourceAddResourceExceptions.

/*
   * Test case for handling RejectedExecutionException and IOException which can
   * be thrown when adding public resources to the pending queue.
   * RejectedExecutionException can be thrown either due to the incoming queue
   * being full or if the ExecutorCompletionService threadpool is shutdown.
   * Since it's hard to simulate the queue being full, this test just shuts down
   * the threadpool and makes sure the exception is handled. If anything is
   * messed up the async dispatcher thread will cause a system exit causing the
   * test to fail.
   */
@Test
@SuppressWarnings("unchecked")
public void testPublicResourceAddResourceExceptions() throws Exception {
    List<Path> localDirs = new ArrayList<Path>();
    String[] sDirs = new String[4];
    for (int i = 0; i < 4; ++i) {
        localDirs.add(lfs.makeQualified(new Path(basedir, i + "")));
        sDirs[i] = localDirs.get(i).toString();
    }
    conf.setStrings(YarnConfiguration.NM_LOCAL_DIRS, sDirs);
    conf.setBoolean(Dispatcher.DISPATCHER_EXIT_ON_ERROR_KEY, true);
    DrainDispatcher dispatcher = new DrainDispatcher();
    EventHandler<ApplicationEvent> applicationBus = mock(EventHandler.class);
    dispatcher.register(ApplicationEventType.class, applicationBus);
    EventHandler<ContainerEvent> containerBus = mock(EventHandler.class);
    dispatcher.register(ContainerEventType.class, containerBus);
    ContainerExecutor exec = mock(ContainerExecutor.class);
    DeletionService delService = mock(DeletionService.class);
    LocalDirsHandlerService dirsHandler = new LocalDirsHandlerService();
    LocalDirsHandlerService dirsHandlerSpy = spy(dirsHandler);
    dirsHandlerSpy.init(conf);
    dispatcher.init(conf);
    dispatcher.start();
    try {
        ResourceLocalizationService rawService = new ResourceLocalizationService(dispatcher, exec, delService, dirsHandlerSpy, nmContext);
        ResourceLocalizationService spyService = spy(rawService);
        doReturn(mockServer).when(spyService).createServer();
        doReturn(lfs).when(spyService).getLocalFileContext(isA(Configuration.class));
        spyService.init(conf);
        spyService.start();
        final String user = "user0";
        // init application
        final Application app = mock(Application.class);
        final ApplicationId appId = BuilderUtils.newApplicationId(314159265358979L, 3);
        when(app.getUser()).thenReturn(user);
        when(app.getAppId()).thenReturn(appId);
        spyService.handle(new ApplicationLocalizationEvent(LocalizationEventType.INIT_APPLICATION_RESOURCES, app));
        dispatcher.await();
        // init resources
        Random r = new Random();
        r.setSeed(r.nextLong());
        // Queue localization request for the public resource
        final LocalResource pubResource = getPublicMockedResource(r);
        final LocalResourceRequest pubReq = new LocalResourceRequest(pubResource);
        Map<LocalResourceVisibility, Collection<LocalResourceRequest>> req = new HashMap<LocalResourceVisibility, Collection<LocalResourceRequest>>();
        req.put(LocalResourceVisibility.PUBLIC, Collections.singletonList(pubReq));
        // init container.
        final Container c = getMockContainer(appId, 42, user);
        // first test ioexception
        Mockito.doThrow(new IOException()).when(dirsHandlerSpy).getLocalPathForWrite(isA(String.class), Mockito.anyLong(), Mockito.anyBoolean());
        // send request
        spyService.handle(new ContainerLocalizationRequestEvent(c, req));
        dispatcher.await();
        LocalResourcesTracker tracker = spyService.getLocalResourcesTracker(LocalResourceVisibility.PUBLIC, user, appId);
        Assert.assertNull(tracker.getLocalizedResource(pubReq));
        // test IllegalArgumentException
        String name = Long.toHexString(r.nextLong());
        URL url = getPath("/local/PRIVATE/" + name + "/");
        final LocalResource rsrc = BuilderUtils.newLocalResource(url, LocalResourceType.FILE, LocalResourceVisibility.PUBLIC, r.nextInt(1024) + 1024L, r.nextInt(1024) + 2048L, false);
        final LocalResourceRequest pubReq1 = new LocalResourceRequest(rsrc);
        Map<LocalResourceVisibility, Collection<LocalResourceRequest>> req1 = new HashMap<LocalResourceVisibility, Collection<LocalResourceRequest>>();
        req1.put(LocalResourceVisibility.PUBLIC, Collections.singletonList(pubReq1));
        Mockito.doCallRealMethod().when(dirsHandlerSpy).getLocalPathForWrite(isA(String.class), Mockito.anyLong(), Mockito.anyBoolean());
        // send request
        spyService.handle(new ContainerLocalizationRequestEvent(c, req1));
        dispatcher.await();
        tracker = spyService.getLocalResourcesTracker(LocalResourceVisibility.PUBLIC, user, appId);
        Assert.assertNull(tracker.getLocalizedResource(pubReq));
        // test RejectedExecutionException by shutting down the thread pool
        PublicLocalizer publicLocalizer = spyService.getPublicLocalizer();
        publicLocalizer.threadPool.shutdown();
        spyService.handle(new ContainerLocalizationRequestEvent(c, req));
        dispatcher.await();
        tracker = spyService.getLocalResourcesTracker(LocalResourceVisibility.PUBLIC, user, appId);
        Assert.assertNull(tracker.getLocalizedResource(pubReq));
    } finally {
        // if we call stop with events in the queue, an InterruptedException gets
        // thrown resulting in the dispatcher thread causing a system exit
        dispatcher.await();
        dispatcher.stop();
    }
}