Package org.apache.tez.dag.app.rm.TestTaskSchedulerHelpers

Examples of org.apache.tez.dag.app.rm.TestTaskSchedulerHelpers.TaskSchedulerAppCallbackDrainable.drain()

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    // One container allocated.
    drainNotifier.set(false);
    taskScheduler.onContainersAllocated(Collections.singletonList(container1));
    TestTaskSchedulerHelpers.waitForDelayedDrainNotify(drainNotifier);
    drainableAppCallback.drain();
    verify(taskSchedulerEventHandler).taskAllocated(eq(ta11), any(Object.class), eq(container1));

    // Task assigned to container completed successfully. Container should be re-used.
    taskSchedulerEventHandler.handleEvent(new AMSchedulerEventTAEnded(ta11, container1.getId(), TaskAttemptState.SUCCEEDED));
    drainableAppCallback.drain();
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    drainableAppCallback.drain();
    verify(taskSchedulerEventHandler).taskAllocated(eq(ta11), any(Object.class), eq(container1));

    // Task assigned to container completed successfully. Container should be re-used.
    taskSchedulerEventHandler.handleEvent(new AMSchedulerEventTAEnded(ta11, container1.getId(), TaskAttemptState.SUCCEEDED));
    drainableAppCallback.drain();
    verify(taskScheduler).deallocateTask(eq(ta11), eq(true));
    verify(taskSchedulerEventHandler).taskAllocated(eq(ta12), any(Object.class), eq(container1));
    verify(rmClient, times(0)).releaseAssignedContainer(eq(container1.getId()));
    eventHandler.verifyNoInvocations(AMContainerEventStopRequest.class);
    eventHandler.reset();
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    eventHandler.reset();

    // Task assigned to container completed successfully.
    // Verify reuse across hosts.
    taskSchedulerEventHandler.handleEvent(new AMSchedulerEventTAEnded(ta12, container1.getId(), TaskAttemptState.SUCCEEDED));
    drainableAppCallback.drain();
    verify(taskScheduler).deallocateTask(eq(ta12), eq(true));
    verify(taskSchedulerEventHandler).taskAllocated(eq(ta13), any(Object.class), eq(container1));
    verify(rmClient, times(0)).releaseAssignedContainer(eq(container1.getId()));
    eventHandler.verifyNoInvocations(AMContainerEventStopRequest.class);
    eventHandler.reset();
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    eventHandler.verifyNoInvocations(AMContainerEventStopRequest.class);
    eventHandler.reset();

    // Verify no re-use if a previous task fails.
    taskSchedulerEventHandler.handleEvent(new AMSchedulerEventTAEnded(ta13, container1.getId(), TaskAttemptState.FAILED));
    drainableAppCallback.drain();
    verify(taskSchedulerEventHandler, times(0)).taskAllocated(eq(ta14), any(Object.class), eq(container1));
    verify(taskScheduler).deallocateTask(eq(ta13), eq(false));
    verify(rmClient).releaseAssignedContainer(eq(container1.getId()));
    eventHandler.verifyInvocation(AMContainerEventStopRequest.class);
    eventHandler.reset();
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    // Second container allocated. Should be allocated to the last task.
    drainNotifier.set(false);
    taskScheduler.onContainersAllocated(Collections.singletonList(container2));
    TestTaskSchedulerHelpers.waitForDelayedDrainNotify(drainNotifier);
    drainableAppCallback.drain();
    verify(taskSchedulerEventHandler).taskAllocated(eq(ta14), any(Object.class), eq(container2));

    // Task assigned to container completed successfully. No pending requests. Container should be released.
    taskSchedulerEventHandler.handleEvent(new AMSchedulerEventTAEnded(ta14, container2.getId(), TaskAttemptState.SUCCEEDED));
    drainableAppCallback.drain();
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    drainableAppCallback.drain();
    verify(taskSchedulerEventHandler).taskAllocated(eq(ta14), any(Object.class), eq(container2));

    // Task assigned to container completed successfully. No pending requests. Container should be released.
    taskSchedulerEventHandler.handleEvent(new AMSchedulerEventTAEnded(ta14, container2.getId(), TaskAttemptState.SUCCEEDED));
    drainableAppCallback.drain();
    verify(taskScheduler).deallocateTask(eq(ta14), eq(true));
    verify(rmClient).releaseAssignedContainer(eq(container2.getId()));
    eventHandler.verifyInvocation(AMContainerEventStopRequest.class);
    eventHandler.reset();
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    // One container allocated.
    drainNotifier.set(false);
    taskScheduler.onContainersAllocated(Collections.singletonList(container1));
    TestTaskSchedulerHelpers.waitForDelayedDrainNotify(drainNotifier);
    drainableAppCallback.drain();
    verify(taskSchedulerEventHandler).taskAllocated(
      eq(ta11), any(Object.class), eq(container1));

    // Send launch request for task2 (vertex2)
    taskSchedulerEventHandler.handleEvent(lrEvent12);
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    // Container should not be immediately assigned to task 2
    // until delay expires.
    taskSchedulerEventHandler.handleEvent(
      new AMSchedulerEventTAEnded(ta11, container1.getId(),
        TaskAttemptState.SUCCEEDED));
    drainableAppCallback.drain();
    verify(taskScheduler).deallocateTask(eq(ta11), eq(true));
    verify(taskSchedulerEventHandler, times(0)).taskAllocated(
      eq(ta12), any(Object.class), eq(container1));
    verify(rmClient, times(0)).releaseAssignedContainer(eq(container1.getId()));
    eventHandler.verifyNoInvocations(AMContainerEventStopRequest.class);
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    // TA12 completed.
    taskSchedulerEventHandler.handleEvent(
      new AMSchedulerEventTAEnded(ta12, container1.getId(),
        TaskAttemptState.SUCCEEDED));
    drainableAppCallback.drain();
    verify(rmClient).releaseAssignedContainer(eq(container1.getId()));
    eventHandler.verifyInvocation(AMContainerEventStopRequest.class);

    taskScheduler.close();
    taskSchedulerEventHandler.close();
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    // One container allocated.
    drainNotifier.set(false);
    taskScheduler.onContainersAllocated(Collections.singletonList(container1));
    TestTaskSchedulerHelpers.waitForDelayedDrainNotify(drainNotifier);
    drainableAppCallback.drain();
    verify(taskSchedulerEventHandler).taskAllocated(
      eq(ta11), any(Object.class), eq(container1));

    // Send launch request for task2 (vertex2)
    taskSchedulerEventHandler.handleEvent(lrEvent21);
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