Examples with NoProcessorJobCoordinatorListener org.apache.samza.coordinator.NoProcessorJobCoordinatorListener used on opensource projects

Example 1 with NoProcessorJobCoordinatorListener

use of org.apache.samza.coordinator.NoProcessorJobCoordinatorListener in project samza by apache.

the class JobCoordinatorLaunchUtil method runJobCoordinator.

private static void runJobCoordinator(String jobCoordinatorClassName, MetricsRegistryMap metrics, MetadataStore metadataStore, Config finalConfig) {
    JobCoordinatorFactory jobCoordinatorFactory = ReflectionUtil.getObj(jobCoordinatorClassName, JobCoordinatorFactory.class);
    JobCoordinator jobCoordinator = jobCoordinatorFactory.getJobCoordinator(JOB_COORDINATOR_PROCESSOR_ID_PLACEHOLDER, finalConfig, metrics, metadataStore);
    Map<String, MetricsReporter> metricsReporters = MetricsReporterLoader.getMetricsReporters(new MetricsConfig(finalConfig), CoordinationConstants.JOB_COORDINATOR_CONTAINER_NAME);
    metricsReporters.values().forEach(metricsReporter -> metricsReporter.register(CoordinationConstants.JOB_COORDINATOR_CONTAINER_NAME, metrics));
    metricsReporters.values().forEach(MetricsReporter::start);
    CountDownLatch waitForShutdownLatch = new CountDownLatch(1);
    jobCoordinator.setListener(new NoProcessorJobCoordinatorListener(waitForShutdownLatch));
    jobCoordinator.start();
    addShutdownHook(jobCoordinator);
    try {
        waitForShutdownLatch.await();
    } catch (InterruptedException e) {
        String errorMessage = "Error while waiting for coordinator to complete";
        LOG.error(errorMessage, e);
        throw new SamzaException(errorMessage, e);
    } finally {
        metricsReporters.values().forEach(MetricsReporter::stop);
    }
}

Example 2 with NoProcessorJobCoordinatorListener

use of org.apache.samza.coordinator.NoProcessorJobCoordinatorListener in project samza by apache.

the class TestJobCoordinatorLaunchUtil method testRunJobCoordinator.

@Test
public void testRunJobCoordinator() throws Exception {
    String jobCoordinatorFactoryClass = "org.apache.samza.custom.MyJobCoordinatorFactory";
    Config originalConfig = buildOriginalConfig(ImmutableMap.of(JobCoordinatorConfig.JOB_COORDINATOR_FACTORY, jobCoordinatorFactoryClass));
    JobConfig fullConfig = new JobConfig(new MapConfig(originalConfig, Collections.singletonMap("isAfterPlanning", "true")));
    Config autoSizingConfig = new MapConfig(Collections.singletonMap(JobConfig.JOB_AUTOSIZING_CONTAINER_COUNT, "10"));
    Config finalConfig = new MapConfig(autoSizingConfig, fullConfig);
    RemoteJobPlanner remoteJobPlanner = mock(RemoteJobPlanner.class);
    CoordinatorStreamStore coordinatorStreamStore = mock(CoordinatorStreamStore.class);
    JobCoordinatorFactory jobCoordinatorFactory = mock(JobCoordinatorFactory.class);
    JobCoordinator jobCoordinator = mock(JobCoordinator.class);
    PowerMockito.mockStatic(CoordinatorStreamUtil.class);
    PowerMockito.doNothing().when(CoordinatorStreamUtil.class, "createCoordinatorStream", any());
    PowerMockito.doReturn(new MapConfig()).when(CoordinatorStreamUtil.class, "buildCoordinatorStreamConfig", any());
    PowerMockito.doReturn(autoSizingConfig).when(CoordinatorStreamUtil.class, "readLaunchConfigFromCoordinatorStream", any(), any());
    PowerMockito.whenNew(CoordinatorStreamStore.class).withAnyArguments().thenReturn(coordinatorStreamStore);
    PowerMockito.whenNew(RemoteJobPlanner.class).withAnyArguments().thenReturn(remoteJobPlanner);
    when(remoteJobPlanner.prepareJobs()).thenReturn(Collections.singletonList(fullConfig));
    PowerMockito.mockStatic(ReflectionUtil.class);
    PowerMockito.doReturn(jobCoordinatorFactory).when(ReflectionUtil.class, "getObj", jobCoordinatorFactoryClass, JobCoordinatorFactory.class);
    when(jobCoordinatorFactory.getJobCoordinator(eq("samza-job-coordinator"), eq(finalConfig), any(), eq(coordinatorStreamStore))).thenReturn(jobCoordinator);
    // use a latch to keep track of when shutdown hook was added to know when we should start verifications
    CountDownLatch addShutdownHookLatch = new CountDownLatch(1);
    PowerMockito.spy(JobCoordinatorLaunchUtil.class);
    PowerMockito.doAnswer(invocation -> {
        addShutdownHookLatch.countDown();
        return null;
    }).when(JobCoordinatorLaunchUtil.class, "addShutdownHook", any());
    MetricsReporter metricsReporter = mock(MetricsReporter.class);
    Map<String, MetricsReporter> metricsReporterMap = ImmutableMap.of("reporter", metricsReporter);
    PowerMockito.mockStatic(MetricsReporterLoader.class);
    PowerMockito.doReturn(metricsReporterMap).when(MetricsReporterLoader.class, "getMetricsReporters", new MetricsConfig(finalConfig), "JobCoordinator");
    NoProcessorJobCoordinatorListener jobCoordinatorListener = mock(NoProcessorJobCoordinatorListener.class);
    PowerMockito.whenNew(NoProcessorJobCoordinatorListener.class).withAnyArguments().thenReturn(jobCoordinatorListener);
    Thread runThread = new Thread(() -> JobCoordinatorLaunchUtil.run(new MockStreamApplication(), originalConfig));
    runThread.start();
    // last thing before waiting for shutdown is to add shutdown hook, so do verifications once hook is added
    addShutdownHookLatch.await();
    verifyStatic();
    CoordinatorStreamUtil.createCoordinatorStream(fullConfig);
    verifyStatic();
    CoordinatorStreamUtil.writeConfigToCoordinatorStream(finalConfig, true);
    verifyStatic();
    JobCoordinatorLaunchUtil.addShutdownHook(jobCoordinator);
    InOrder inOrder = Mockito.inOrder(metricsReporter, jobCoordinator);
    inOrder.verify(metricsReporter).register(eq("JobCoordinator"), any());
    inOrder.verify(metricsReporter).start();
    ArgumentCaptor<CountDownLatch> countDownLatchArgumentCaptor = ArgumentCaptor.forClass(CountDownLatch.class);
    verifyNew(NoProcessorJobCoordinatorListener.class).withArguments(countDownLatchArgumentCaptor.capture());
    inOrder.verify(jobCoordinator).setListener(jobCoordinatorListener);
    inOrder.verify(jobCoordinator).start();
    // wait some time and then make sure the run thread is still alive
    Thread.sleep(Duration.ofMillis(500).toMillis());
    assertTrue(runThread.isAlive());
    // trigger the count down latch so that the run thread can exit
    countDownLatchArgumentCaptor.getValue().countDown();
    runThread.join(Duration.ofSeconds(10).toMillis());
    assertFalse(runThread.isAlive());
    verify(metricsReporter).stop();
}