Examples with TaskInstance org.apache.samza.container.TaskInstance used on opensource projects

Example 1 with TaskInstance

use of org.apache.samza.container.TaskInstance in project samza by apache.

the class AsyncRunLoop method getSspToAsyncTaskWorkerMap.

/**
   * Returns mapping of the SystemStreamPartition to the AsyncTaskWorkers to efficiently route the envelopes
   */
private static Map<SystemStreamPartition, List<AsyncTaskWorker>> getSspToAsyncTaskWorkerMap(Map<TaskName, TaskInstance> taskInstances, Map<TaskName, AsyncTaskWorker> taskWorkers) {
    Map<SystemStreamPartition, List<AsyncTaskWorker>> sspToWorkerMap = new HashMap<>();
    for (TaskInstance task : taskInstances.values()) {
        Set<SystemStreamPartition> ssps = JavaConverters.setAsJavaSetConverter(task.systemStreamPartitions()).asJava();
        for (SystemStreamPartition ssp : ssps) {
            sspToWorkerMap.putIfAbsent(ssp, new ArrayList<>());
            sspToWorkerMap.get(ssp).add(taskWorkers.get(task.taskName()));
        }
    }
    return sspToWorkerMap;
}

Example 2 with TaskInstance

use of org.apache.samza.container.TaskInstance in project samza by apache.

the class TestAsyncRunLoop method testCommitBehaviourWhenAsyncCommitIsEnabled.

//@Test
public void testCommitBehaviourWhenAsyncCommitIsEnabled() throws InterruptedException {
    int maxMessagesInFlight = 3;
    TestTask task0 = new TestTask(true, true, false, null, maxMessagesInFlight);
    task0.setCommitRequest(TaskCoordinator.RequestScope.CURRENT_TASK);
    TestTask task1 = new TestTask(true, false, true, null);
    task1.setCommitRequest(TaskCoordinator.RequestScope.CURRENT_TASK);
    IncomingMessageEnvelope firstMsg = new IncomingMessageEnvelope(ssp0, "0", "key0", "value0");
    IncomingMessageEnvelope secondMsg = new IncomingMessageEnvelope(ssp0, "1", "key1", "value1");
    IncomingMessageEnvelope thirdMsg = new IncomingMessageEnvelope(ssp0, "2", "key0", "value0");
    final CountDownLatch firstMsgCompletionLatch = new CountDownLatch(1);
    final CountDownLatch secondMsgCompletionLatch = new CountDownLatch(1);
    task0.callbackHandler = callback -> {
        IncomingMessageEnvelope envelope = ((TaskCallbackImpl) callback).envelope;
        try {
            if (envelope.equals(firstMsg)) {
                firstMsgCompletionLatch.await();
            } else if (envelope.equals(secondMsg)) {
                firstMsgCompletionLatch.countDown();
                secondMsgCompletionLatch.await();
            } else if (envelope.equals(thirdMsg)) {
                secondMsgCompletionLatch.countDown();
                verify(offsetManager).update(taskName0, firstMsg.getSystemStreamPartition(), firstMsg.getOffset());
                verify(offsetManager, atLeastOnce()).checkpoint(taskName0);
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    };
    Map<TaskName, TaskInstance> tasks = new HashMap<>();
    tasks.put(taskName0, createTaskInstance(task0, taskName0, ssp0));
    tasks.put(taskName1, createTaskInstance(task1, taskName1, ssp1));
    when(consumerMultiplexer.choose(false)).thenReturn(firstMsg).thenReturn(secondMsg).thenReturn(thirdMsg).thenReturn(envelope1).thenReturn(null);
    AsyncRunLoop runLoop = new AsyncRunLoop(tasks, executor, consumerMultiplexer, maxMessagesInFlight, windowMs, commitMs, callbackTimeoutMs, maxThrottlingDelayMs, containerMetrics, () -> 0L, true);
    runLoop.run();
    firstMsgCompletionLatch.await();
    secondMsgCompletionLatch.await();
    assertEquals(3, task0.processed);
    assertEquals(3, task0.committed);
    assertEquals(1, task1.processed);
    assertEquals(0, task1.committed);
}

Example 3 with TaskInstance

use of org.apache.samza.container.TaskInstance in project samza by apache.

the class TestAsyncRunLoop method testCommitSingleTask.

// TODO fix in SAMZA-1183
// @Test
public void testCommitSingleTask() throws Exception {
    CountDownLatch task0ProcessedMessagesLatch = new CountDownLatch(1);
    CountDownLatch task1ProcessedMessagesLatch = new CountDownLatch(1);
    TestTask task0 = new TestTask(true, true, false, task0ProcessedMessagesLatch);
    task0.setCommitRequest(TaskCoordinator.RequestScope.CURRENT_TASK);
    TestTask task1 = new TestTask(true, false, true, task1ProcessedMessagesLatch);
    task1.setCommitRequest(TaskCoordinator.RequestScope.CURRENT_TASK);
    TaskInstance t0 = createTaskInstance(task0, taskName0, ssp0);
    TaskInstance t1 = createTaskInstance(task1, taskName1, ssp1);
    Map<TaskName, TaskInstance> tasks = new HashMap<>();
    tasks.put(taskName0, t0);
    tasks.put(taskName1, t1);
    int maxMessagesInFlight = 1;
    AsyncRunLoop runLoop = new AsyncRunLoop(tasks, executor, consumerMultiplexer, maxMessagesInFlight, windowMs, commitMs, callbackTimeoutMs, maxThrottlingDelayMs, containerMetrics, () -> 0L, false);
    //have a null message in between to make sure task0 finishes processing and invoke the commit
    when(consumerMultiplexer.choose(false)).thenReturn(envelope0).thenReturn(null).thenReturn(envelope1).thenReturn(null);
    runLoop.run();
    task0ProcessedMessagesLatch.await();
    task1ProcessedMessagesLatch.await();
    verify(offsetManager).checkpoint(taskName0);
    verify(offsetManager, never()).checkpoint(taskName1);
}

Example 4 with TaskInstance

use of org.apache.samza.container.TaskInstance in project samza by apache.

the class TestAsyncRunLoop method testEndOfStreamCommitBehavior.

//@Test
public void testEndOfStreamCommitBehavior() throws Exception {
    CountDownLatch task0ProcessedMessagesLatch = new CountDownLatch(1);
    CountDownLatch task1ProcessedMessagesLatch = new CountDownLatch(1);
    //explicitly configure to disable commits inside process or window calls and invoke commit from end of stream
    TestTask task0 = new TestTask(true, false, false, task0ProcessedMessagesLatch);
    TestTask task1 = new TestTask(true, false, false, task1ProcessedMessagesLatch);
    TaskInstance t0 = createTaskInstance(task0, taskName0, ssp0);
    TaskInstance t1 = createTaskInstance(task1, taskName1, ssp1);
    Map<TaskName, TaskInstance> tasks = new HashMap<>();
    tasks.put(taskName0, t0);
    tasks.put(taskName1, t1);
    int maxMessagesInFlight = 1;
    AsyncRunLoop runLoop = new AsyncRunLoop(tasks, executor, consumerMultiplexer, maxMessagesInFlight, windowMs, commitMs, callbackTimeoutMs, maxThrottlingDelayMs, containerMetrics, () -> 0L, false);
    when(consumerMultiplexer.choose(false)).thenReturn(envelope0).thenReturn(envelope1).thenReturn(null).thenReturn(ssp0EndOfStream).thenReturn(ssp1EndOfStream).thenReturn(null);
    runLoop.run();
    task0ProcessedMessagesLatch.await();
    task1ProcessedMessagesLatch.await();
    verify(offsetManager).checkpoint(taskName0);
    verify(offsetManager).checkpoint(taskName1);
}

Example 5 with TaskInstance

use of org.apache.samza.container.TaskInstance in project samza by apache.

the class TestAsyncRunLoop method testProcessOutOfOrder.

//@Test
public void testProcessOutOfOrder() throws Exception {
    int maxMessagesInFlight = 2;
    CountDownLatch task0ProcessedMessagesLatch = new CountDownLatch(2);
    CountDownLatch task1ProcessedMessagesLatch = new CountDownLatch(1);
    TestTask task0 = new TestTask(true, true, false, task0ProcessedMessagesLatch, maxMessagesInFlight);
    TestTask task1 = new TestTask(true, false, true, task1ProcessedMessagesLatch, maxMessagesInFlight);
    TaskInstance t0 = createTaskInstance(task0, taskName0, ssp0);
    TaskInstance t1 = createTaskInstance(task1, taskName1, ssp1);
    Map<TaskName, TaskInstance> tasks = new HashMap<>();
    tasks.put(taskName0, t0);
    tasks.put(taskName1, t1);
    task0.callbackHandler = buildOutofOrderCallback(task0);
    AsyncRunLoop runLoop = new AsyncRunLoop(tasks, executor, consumerMultiplexer, maxMessagesInFlight, windowMs, commitMs, callbackTimeoutMs, maxThrottlingDelayMs, containerMetrics, () -> 0L, false);
    when(consumerMultiplexer.choose(false)).thenReturn(envelope0).thenReturn(envelope3).thenReturn(envelope1).thenReturn(null);
    runLoop.run();
    task0ProcessedMessagesLatch.await();
    task1ProcessedMessagesLatch.await();
    assertEquals(2, task0.processed);
    assertEquals(2, task0.completed.get());
    assertEquals(1, task1.processed);
    assertEquals(1, task1.completed.get());
    assertEquals(3L, containerMetrics.envelopes().getCount());
    assertEquals(3L, containerMetrics.processes().getCount());
}