Examples with CheckpointResponder org.apache.flink.runtime.taskmanager.CheckpointResponder used on opensource projects

Example 6 with CheckpointResponder

use of org.apache.flink.runtime.taskmanager.CheckpointResponder in project flink by apache.

the class SourceOperatorStreamTaskTest method testTriggeringStopWithSavepointWithDrain.

@Test
public void testTriggeringStopWithSavepointWithDrain() throws Exception {
    SourceOperatorFactory<Integer> sourceOperatorFactory = new SourceOperatorFactory<>(new MockSource(Boundedness.CONTINUOUS_UNBOUNDED, 2), WatermarkStrategy.noWatermarks());
    CompletableFuture<Boolean> checkpointCompleted = new CompletableFuture<>();
    CheckpointResponder checkpointResponder = new TestCheckpointResponder() {

        @Override
        public void acknowledgeCheckpoint(JobID jobID, ExecutionAttemptID executionAttemptID, long checkpointId, CheckpointMetrics checkpointMetrics, TaskStateSnapshot subtaskState) {
            super.acknowledgeCheckpoint(jobID, executionAttemptID, checkpointId, checkpointMetrics, subtaskState);
            checkpointCompleted.complete(null);
        }
    };
    try (StreamTaskMailboxTestHarness<Integer> testHarness = new StreamTaskMailboxTestHarnessBuilder<>(SourceOperatorStreamTask::new, BasicTypeInfo.INT_TYPE_INFO).setupOutputForSingletonOperatorChain(sourceOperatorFactory).setCheckpointResponder(checkpointResponder).build()) {
        CompletableFuture<Boolean> triggerResult = testHarness.streamTask.triggerCheckpointAsync(new CheckpointMetaData(2, 2), CheckpointOptions.alignedNoTimeout(SavepointType.terminate(SavepointFormatType.CANONICAL), CheckpointStorageLocationReference.getDefault()));
        checkpointCompleted.whenComplete((ignored, exception) -> testHarness.streamTask.notifyCheckpointCompleteAsync(2));
        testHarness.waitForTaskCompletion();
        testHarness.finishProcessing();
        assertTrue(triggerResult.isDone());
        assertTrue(triggerResult.get());
        assertTrue(checkpointCompleted.isDone());
    }
}

Example 7 with CheckpointResponder

use of org.apache.flink.runtime.taskmanager.CheckpointResponder in project flink by apache.

the class TaskExecutor method associateWithJobManager.

private JobManagerConnection associateWithJobManager(JobID jobID, ResourceID resourceID, JobMasterGateway jobMasterGateway, UUID jobManagerLeaderId, int blobPort) {
    Preconditions.checkNotNull(jobID);
    Preconditions.checkNotNull(resourceID);
    Preconditions.checkNotNull(jobManagerLeaderId);
    Preconditions.checkNotNull(jobMasterGateway);
    Preconditions.checkArgument(blobPort > 0 || blobPort < MAX_BLOB_PORT, "Blob server port is out of range.");
    TaskManagerActions taskManagerActions = new TaskManagerActionsImpl(jobManagerLeaderId, jobMasterGateway);
    CheckpointResponder checkpointResponder = new RpcCheckpointResponder(jobMasterGateway);
    InetSocketAddress blobServerAddress = new InetSocketAddress(jobMasterGateway.getHostname(), blobPort);
    final LibraryCacheManager libraryCacheManager;
    try {
        final BlobCache blobCache = new BlobCache(blobServerAddress, taskManagerConfiguration.getConfiguration(), haServices);
        libraryCacheManager = new BlobLibraryCacheManager(blobCache, taskManagerConfiguration.getCleanupInterval());
    } catch (IOException e) {
        // Can't pass the IOException up - we need a RuntimeException anyway
        // two levels up where this is run asynchronously. Also, we don't
        // know whether this is caught in the thread running this method.
        final String message = "Could not create BLOB cache or library cache.";
        log.error(message, e);
        throw new RuntimeException(message, e);
    }
    ResultPartitionConsumableNotifier resultPartitionConsumableNotifier = new RpcResultPartitionConsumableNotifier(jobManagerLeaderId, jobMasterGateway, getRpcService().getExecutor(), taskManagerConfiguration.getTimeout());
    PartitionProducerStateChecker partitionStateChecker = new RpcPartitionStateChecker(jobManagerLeaderId, jobMasterGateway);
    return new JobManagerConnection(jobID, resourceID, jobMasterGateway, jobManagerLeaderId, taskManagerActions, checkpointResponder, libraryCacheManager, resultPartitionConsumableNotifier, partitionStateChecker);
}

Example 8 with CheckpointResponder

use of org.apache.flink.runtime.taskmanager.CheckpointResponder in project flink by apache.

the class TaskExecutor method submitTask.

// ======================================================================
//  RPC methods
// ======================================================================
// ----------------------------------------------------------------------
// Task lifecycle RPCs
// ----------------------------------------------------------------------
@RpcMethod
public Acknowledge submitTask(TaskDeploymentDescriptor tdd, UUID jobManagerLeaderId) throws TaskSubmissionException {
    // first, deserialize the pre-serialized information
    final JobInformation jobInformation;
    final TaskInformation taskInformation;
    try {
        jobInformation = tdd.getSerializedJobInformation().deserializeValue(getClass().getClassLoader());
        taskInformation = tdd.getSerializedTaskInformation().deserializeValue(getClass().getClassLoader());
    } catch (IOException | ClassNotFoundException e) {
        throw new TaskSubmissionException("Could not deserialize the job or task information.", e);
    }
    final JobID jobId = jobInformation.getJobId();
    final JobManagerConnection jobManagerConnection = jobManagerTable.get(jobId);
    if (jobManagerConnection == null) {
        final String message = "Could not submit task because there is no JobManager " + "associated for the job " + jobId + '.';
        log.debug(message);
        throw new TaskSubmissionException(message);
    }
    if (!jobManagerConnection.getLeaderId().equals(jobManagerLeaderId)) {
        final String message = "Rejecting the task submission because the job manager leader id " + jobManagerLeaderId + " does not match the expected job manager leader id " + jobManagerConnection.getLeaderId() + '.';
        log.debug(message);
        throw new TaskSubmissionException(message);
    }
    if (!taskSlotTable.existsActiveSlot(jobId, tdd.getAllocationId())) {
        final String message = "No task slot allocated for job ID " + jobId + " and allocation ID " + tdd.getAllocationId() + '.';
        log.debug(message);
        throw new TaskSubmissionException(message);
    }
    TaskMetricGroup taskMetricGroup = taskManagerMetricGroup.addTaskForJob(jobInformation.getJobId(), jobInformation.getJobName(), taskInformation.getJobVertexId(), tdd.getExecutionAttemptId(), taskInformation.getTaskName(), tdd.getSubtaskIndex(), tdd.getAttemptNumber());
    InputSplitProvider inputSplitProvider = new RpcInputSplitProvider(jobManagerConnection.getLeaderId(), jobManagerConnection.getJobManagerGateway(), jobInformation.getJobId(), taskInformation.getJobVertexId(), tdd.getExecutionAttemptId(), taskManagerConfiguration.getTimeout());
    TaskManagerActions taskManagerActions = jobManagerConnection.getTaskManagerActions();
    CheckpointResponder checkpointResponder = jobManagerConnection.getCheckpointResponder();
    LibraryCacheManager libraryCache = jobManagerConnection.getLibraryCacheManager();
    ResultPartitionConsumableNotifier resultPartitionConsumableNotifier = jobManagerConnection.getResultPartitionConsumableNotifier();
    PartitionProducerStateChecker partitionStateChecker = jobManagerConnection.getPartitionStateChecker();
    Task task = new Task(jobInformation, taskInformation, tdd.getExecutionAttemptId(), tdd.getAllocationId(), tdd.getSubtaskIndex(), tdd.getAttemptNumber(), tdd.getProducedPartitions(), tdd.getInputGates(), tdd.getTargetSlotNumber(), tdd.getTaskStateHandles(), memoryManager, ioManager, networkEnvironment, broadcastVariableManager, taskManagerActions, inputSplitProvider, checkpointResponder, libraryCache, fileCache, taskManagerConfiguration, taskMetricGroup, resultPartitionConsumableNotifier, partitionStateChecker, getRpcService().getExecutor());
    log.info("Received task {}.", task.getTaskInfo().getTaskNameWithSubtasks());
    boolean taskAdded;
    try {
        taskAdded = taskSlotTable.addTask(task);
    } catch (SlotNotFoundException | SlotNotActiveException e) {
        throw new TaskSubmissionException("Could not submit task.", e);
    }
    if (taskAdded) {
        task.startTaskThread();
        return Acknowledge.get();
    } else {
        final String message = "TaskManager already contains a task for id " + task.getExecutionId() + '.';
        log.debug(message);
        throw new TaskSubmissionException(message);
    }
}

Example 9 with CheckpointResponder

use of org.apache.flink.runtime.taskmanager.CheckpointResponder in project flink by apache.

the class StreamTaskTest method testAsyncCheckpointingConcurrentCloseAfterAcknowledge.

/**
 * FLINK-5667
 *
 * <p>Tests that a concurrent cancel operation does not discard the state handles of an
 * acknowledged checkpoint. The situation can only happen if the cancel call is executed after
 * Environment.acknowledgeCheckpoint() and before the CloseableRegistry.unregisterClosable()
 * call.
 */
@Test
public void testAsyncCheckpointingConcurrentCloseAfterAcknowledge() throws Exception {
    final OneShotLatch acknowledgeCheckpointLatch = new OneShotLatch();
    final OneShotLatch completeAcknowledge = new OneShotLatch();
    CheckpointResponder checkpointResponder = mock(CheckpointResponder.class);
    doAnswer(new Answer() {

        @Override
        public Object answer(InvocationOnMock invocation) {
            acknowledgeCheckpointLatch.trigger();
            // block here so that we can issue the concurrent cancel call
            while (true) {
                try {
                    // wait until we successfully await (no pun intended)
                    completeAcknowledge.await();
                    // when await() returns normally, we break out of the loop
                    break;
                } catch (InterruptedException e) {
                // survive interruptions that arise from thread pool
                // shutdown
                // production code cannot actually throw
                // InterruptedException from
                // checkpoint acknowledgement
                }
            }
            return null;
        }
    }).when(checkpointResponder).acknowledgeCheckpoint(any(JobID.class), any(ExecutionAttemptID.class), anyLong(), any(CheckpointMetrics.class), any(TaskStateSnapshot.class));
    TaskStateManager taskStateManager = new TaskStateManagerImpl(new JobID(1L, 2L), new ExecutionAttemptID(), mock(TaskLocalStateStoreImpl.class), new InMemoryStateChangelogStorage(), null, checkpointResponder);
    KeyedStateHandle managedKeyedStateHandle = mock(KeyedStateHandle.class);
    KeyedStateHandle rawKeyedStateHandle = mock(KeyedStateHandle.class);
    OperatorStateHandle managedOperatorStateHandle = mock(OperatorStreamStateHandle.class);
    OperatorStateHandle rawOperatorStateHandle = mock(OperatorStreamStateHandle.class);
    OperatorSnapshotFutures operatorSnapshotResult = new OperatorSnapshotFutures(DoneFuture.of(SnapshotResult.of(managedKeyedStateHandle)), DoneFuture.of(SnapshotResult.of(rawKeyedStateHandle)), DoneFuture.of(SnapshotResult.of(managedOperatorStateHandle)), DoneFuture.of(SnapshotResult.of(rawOperatorStateHandle)), DoneFuture.of(SnapshotResult.empty()), DoneFuture.of(SnapshotResult.empty()));
    try (MockEnvironment mockEnvironment = new MockEnvironmentBuilder().setTaskName("mock-task").setTaskStateManager(taskStateManager).build()) {
        RunningTask<MockStreamTask> task = runTask(() -> createMockStreamTask(mockEnvironment, operatorChain(streamOperatorWithSnapshot(operatorSnapshotResult))));
        MockStreamTask streamTask = task.streamTask;
        waitTaskIsRunning(streamTask, task.invocationFuture);
        final long checkpointId = 42L;
        streamTask.triggerCheckpointAsync(new CheckpointMetaData(checkpointId, 1L), CheckpointOptions.forCheckpointWithDefaultLocation());
        acknowledgeCheckpointLatch.await();
        ArgumentCaptor<TaskStateSnapshot> subtaskStateCaptor = ArgumentCaptor.forClass(TaskStateSnapshot.class);
        // check that the checkpoint has been completed
        verify(checkpointResponder).acknowledgeCheckpoint(any(JobID.class), any(ExecutionAttemptID.class), eq(checkpointId), any(CheckpointMetrics.class), subtaskStateCaptor.capture());
        TaskStateSnapshot subtaskStates = subtaskStateCaptor.getValue();
        OperatorSubtaskState subtaskState = subtaskStates.getSubtaskStateMappings().iterator().next().getValue();
        // check that the subtask state contains the expected state handles
        assertEquals(singleton(managedKeyedStateHandle), subtaskState.getManagedKeyedState());
        assertEquals(singleton(rawKeyedStateHandle), subtaskState.getRawKeyedState());
        assertEquals(singleton(managedOperatorStateHandle), subtaskState.getManagedOperatorState());
        assertEquals(singleton(rawOperatorStateHandle), subtaskState.getRawOperatorState());
        // check that the state handles have not been discarded
        verify(managedKeyedStateHandle, never()).discardState();
        verify(rawKeyedStateHandle, never()).discardState();
        verify(managedOperatorStateHandle, never()).discardState();
        verify(rawOperatorStateHandle, never()).discardState();
        streamTask.cancel();
        completeAcknowledge.trigger();
        // canceling the stream task after it has acknowledged the checkpoint should not discard
        // the state handles
        verify(managedKeyedStateHandle, never()).discardState();
        verify(rawKeyedStateHandle, never()).discardState();
        verify(managedOperatorStateHandle, never()).discardState();
        verify(rawOperatorStateHandle, never()).discardState();
        task.waitForTaskCompletion(true);
    }
}

Example 10 with CheckpointResponder

use of org.apache.flink.runtime.taskmanager.CheckpointResponder in project flink by apache.

the class StreamTaskTest method testEmptySubtaskStateLeadsToStatelessAcknowledgment.

/**
 * FLINK-5985
 *
 * <p>This test ensures that empty snapshots (no op/keyed stated whatsoever) will be reported as
 * stateless tasks. This happens by translating an empty {@link SubtaskState} into reporting
 * 'null' to #acknowledgeCheckpoint.
 */
@Test
public void testEmptySubtaskStateLeadsToStatelessAcknowledgment() throws Exception {
    // latch blocks until the async checkpoint thread acknowledges
    final OneShotLatch checkpointCompletedLatch = new OneShotLatch();
    final List<SubtaskState> checkpointResult = new ArrayList<>(1);
    CheckpointResponder checkpointResponder = mock(CheckpointResponder.class);
    doAnswer(new Answer() {

        @Override
        public Object answer(InvocationOnMock invocation) throws Throwable {
            SubtaskState subtaskState = invocation.getArgument(4);
            checkpointResult.add(subtaskState);
            checkpointCompletedLatch.trigger();
            return null;
        }
    }).when(checkpointResponder).acknowledgeCheckpoint(any(JobID.class), any(ExecutionAttemptID.class), anyLong(), any(CheckpointMetrics.class), nullable(TaskStateSnapshot.class));
    TaskStateManager taskStateManager = new TaskStateManagerImpl(new JobID(1L, 2L), new ExecutionAttemptID(), mock(TaskLocalStateStoreImpl.class), new InMemoryStateChangelogStorage(), null, checkpointResponder);
    // mock the operator with empty snapshot result (all state handles are null)
    OneInputStreamOperator<String, String> statelessOperator = streamOperatorWithSnapshot(new OperatorSnapshotFutures());
    try (MockEnvironment mockEnvironment = new MockEnvironmentBuilder().setTaskStateManager(taskStateManager).build()) {
        RunningTask<MockStreamTask> task = runTask(() -> createMockStreamTask(mockEnvironment, operatorChain(statelessOperator)));
        waitTaskIsRunning(task.streamTask, task.invocationFuture);
        task.streamTask.triggerCheckpointAsync(new CheckpointMetaData(42L, 1L), CheckpointOptions.forCheckpointWithDefaultLocation());
        checkpointCompletedLatch.await(30, TimeUnit.SECONDS);
        // ensure that 'null' was acknowledged as subtask state
        Assert.assertNull(checkpointResult.get(0));
        task.streamTask.cancel();
        task.waitForTaskCompletion(true);
    }
}