Examples with DataInputStatus org.apache.flink.streaming.runtime.io.DataInputStatus used on opensource projects

Example 1 with DataInputStatus

use of org.apache.flink.streaming.runtime.io.DataInputStatus in project flink by apache.

the class LargeSortingDataInputITCase method multiInputKeySorting.

@Test
@SuppressWarnings({ "rawtypes", "unchecked" })
public void multiInputKeySorting() throws Exception {
    int numberOfRecords = 500_000;
    GeneratedRecordsDataInput input1 = new GeneratedRecordsDataInput(numberOfRecords, 0);
    GeneratedRecordsDataInput input2 = new GeneratedRecordsDataInput(numberOfRecords, 1);
    KeySelector<Tuple3<Integer, String, byte[]>, String> keySelector = value -> value.f1;
    try (MockEnvironment environment = MockEnvironment.builder().build()) {
        SelectableSortingInputs selectableSortingInputs = MultiInputSortingDataInput.wrapInputs(new DummyInvokable(), new StreamTaskInput[] { input1, input2 }, new KeySelector[] { keySelector, keySelector }, new TypeSerializer[] { GeneratedRecordsDataInput.SERIALIZER, GeneratedRecordsDataInput.SERIALIZER }, new StringSerializer(), new StreamTaskInput[0], environment.getMemoryManager(), environment.getIOManager(), true, 1.0, new Configuration(), new ExecutionConfig());
        StreamTaskInput<?>[] sortingDataInputs = selectableSortingInputs.getSortedInputs();
        try (StreamTaskInput<Tuple3<Integer, String, byte[]>> sortedInput1 = (StreamTaskInput<Tuple3<Integer, String, byte[]>>) sortingDataInputs[0];
            StreamTaskInput<Tuple3<Integer, String, byte[]>> sortedInput2 = (StreamTaskInput<Tuple3<Integer, String, byte[]>>) sortingDataInputs[1]) {
            VerifyingOutput<String> output = new VerifyingOutput<>(keySelector);
            StreamMultipleInputProcessor multiSortedProcessor = new StreamMultipleInputProcessor(new MultipleInputSelectionHandler(selectableSortingInputs.getInputSelectable(), 2), new StreamOneInputProcessor[] { new StreamOneInputProcessor(sortedInput1, output, new DummyOperatorChain()), new StreamOneInputProcessor(sortedInput2, output, new DummyOperatorChain()) });
            DataInputStatus inputStatus;
            do {
                inputStatus = multiSortedProcessor.processInput();
            } while (inputStatus != DataInputStatus.END_OF_INPUT);
            assertThat(output.getSeenRecords(), equalTo(numberOfRecords * 2));
        }
    }
}

Example 2 with DataInputStatus

use of org.apache.flink.streaming.runtime.io.DataInputStatus in project flink by apache.

the class MultiInputSortingDataInputsTest method twoInputOrderTest.

@SuppressWarnings("unchecked")
public void twoInputOrderTest(int preferredIndex, int sortedIndex) throws Exception {
    CollectingDataOutput<Object> collectingDataOutput = new CollectingDataOutput<>();
    List<StreamElement> sortedInputElements = Arrays.asList(new StreamRecord<>(1, 3), new StreamRecord<>(1, 1), new StreamRecord<>(2, 1), new StreamRecord<>(2, 3), new StreamRecord<>(1, 2), new StreamRecord<>(2, 2), Watermark.MAX_WATERMARK);
    CollectionDataInput<Integer> sortedInput = new CollectionDataInput<>(sortedInputElements, sortedIndex);
    List<StreamElement> preferredInputElements = Arrays.asList(new StreamRecord<>(99, 3), new StreamRecord<>(99, 1), new Watermark(99L));
    CollectionDataInput<Integer> preferredInput = new CollectionDataInput<>(preferredInputElements, preferredIndex);
    KeySelector<Integer, Integer> keySelector = value -> value;
    try (MockEnvironment environment = MockEnvironment.builder().build()) {
        SelectableSortingInputs selectableSortingInputs = MultiInputSortingDataInput.wrapInputs(new DummyInvokable(), new StreamTaskInput[] { sortedInput }, new KeySelector[] { keySelector }, new TypeSerializer[] { new IntSerializer() }, new IntSerializer(), new StreamTaskInput[] { preferredInput }, environment.getMemoryManager(), environment.getIOManager(), true, 1.0, new Configuration(), new ExecutionConfig());
        StreamTaskInput<?>[] sortingDataInputs = selectableSortingInputs.getSortedInputs();
        StreamTaskInput<?>[] preferredDataInputs = selectableSortingInputs.getPassThroughInputs();
        try (StreamTaskInput<Object> preferredTaskInput = (StreamTaskInput<Object>) preferredDataInputs[0];
            StreamTaskInput<Object> sortedTaskInput = (StreamTaskInput<Object>) sortingDataInputs[0]) {
            MultipleInputSelectionHandler selectionHandler = new MultipleInputSelectionHandler(selectableSortingInputs.getInputSelectable(), 2);
            @SuppressWarnings("rawtypes") StreamOneInputProcessor[] inputProcessors = new StreamOneInputProcessor[2];
            inputProcessors[preferredIndex] = new StreamOneInputProcessor<>(preferredTaskInput, collectingDataOutput, new DummyOperatorChain());
            inputProcessors[sortedIndex] = new StreamOneInputProcessor<>(sortedTaskInput, collectingDataOutput, new DummyOperatorChain());
            StreamMultipleInputProcessor processor = new StreamMultipleInputProcessor(selectionHandler, inputProcessors);
            DataInputStatus inputStatus;
            do {
                inputStatus = processor.processInput();
            } while (inputStatus != DataInputStatus.END_OF_INPUT);
        }
    }
    assertThat(collectingDataOutput.events, equalTo(Arrays.asList(new StreamRecord<>(99, 3), new StreamRecord<>(99, 1), // max watermark from the preferred input
    new Watermark(99L), new StreamRecord<>(1, 1), new StreamRecord<>(1, 2), new StreamRecord<>(1, 3), new StreamRecord<>(2, 1), new StreamRecord<>(2, 2), new StreamRecord<>(2, 3), // max watermark from the sorted input
    Watermark.MAX_WATERMARK)));
}

Example 3 with DataInputStatus

use of org.apache.flink.streaming.runtime.io.DataInputStatus in project flink by apache.

the class SortingDataInputTest method simpleVariableLengthKeySorting.

@Test
public void simpleVariableLengthKeySorting() throws Exception {
    CollectingDataOutput<Integer> collectingDataOutput = new CollectingDataOutput<>();
    CollectionDataInput<Integer> input = new CollectionDataInput<>(Arrays.asList(new StreamRecord<>(1, 3), new StreamRecord<>(1, 1), new StreamRecord<>(2, 1), new StreamRecord<>(2, 3), new StreamRecord<>(1, 2), new StreamRecord<>(2, 2)));
    MockEnvironment environment = MockEnvironment.builder().build();
    SortingDataInput<Integer, String> sortingDataInput = new SortingDataInput<>(input, new IntSerializer(), new StringSerializer(), (KeySelector<Integer, String>) value -> "" + value, environment.getMemoryManager(), environment.getIOManager(), true, 1.0, new Configuration(), new DummyInvokable(), new ExecutionConfig());
    DataInputStatus inputStatus;
    do {
        inputStatus = sortingDataInput.emitNext(collectingDataOutput);
    } while (inputStatus != DataInputStatus.END_OF_INPUT);
    assertThat(collectingDataOutput.events, equalTo(Arrays.asList(new StreamRecord<>(1, 1), new StreamRecord<>(1, 2), new StreamRecord<>(1, 3), new StreamRecord<>(2, 1), new StreamRecord<>(2, 2), new StreamRecord<>(2, 3))));
}

Example 4 with DataInputStatus

use of org.apache.flink.streaming.runtime.io.DataInputStatus in project flink by apache.

the class StreamTask method processInput.

/**
 * This method implements the default action of the task (e.g. processing one event from the
 * input). Implementations should (in general) be non-blocking.
 *
 * @param controller controller object for collaborative interaction between the action and the
 *     stream task.
 * @throws Exception on any problems in the action.
 */
protected void processInput(MailboxDefaultAction.Controller controller) throws Exception {
    DataInputStatus status = inputProcessor.processInput();
    switch(status) {
        case MORE_AVAILABLE:
            if (recordWriter.isAvailable() && (changelogWriterAvailabilityProvider == null || changelogWriterAvailabilityProvider.isAvailable())) {
                return;
            }
            break;
        case NOTHING_AVAILABLE:
            break;
        case END_OF_RECOVERY:
            throw new IllegalStateException("We should not receive this event here.");
        case STOPPED:
            endData(StopMode.NO_DRAIN);
            return;
        case END_OF_DATA:
            endData(StopMode.DRAIN);
            return;
        case END_OF_INPUT:
            // Suspend the mailbox processor, it would be resumed in afterInvoke and finished
            // after all records processed by the downstream tasks. We also suspend the default
            // actions to avoid repeat executing the empty default operation (namely process
            // records).
            controller.suspendDefaultAction();
            mailboxProcessor.suspend();
            return;
    }
    TaskIOMetricGroup ioMetrics = getEnvironment().getMetricGroup().getIOMetricGroup();
    PeriodTimer timer;
    CompletableFuture<?> resumeFuture;
    if (!recordWriter.isAvailable()) {
        timer = new GaugePeriodTimer(ioMetrics.getSoftBackPressuredTimePerSecond());
        resumeFuture = recordWriter.getAvailableFuture();
    } else if (!inputProcessor.isAvailable()) {
        timer = new GaugePeriodTimer(ioMetrics.getIdleTimeMsPerSecond());
        resumeFuture = inputProcessor.getAvailableFuture();
    } else {
        // currently, waiting for changelog availability is reported as busy
        // todo: add new metric (FLINK-24402)
        timer = null;
        resumeFuture = changelogWriterAvailabilityProvider.getAvailableFuture();
    }
    assertNoException(resumeFuture.thenRun(new ResumeWrapper(controller.suspendDefaultAction(timer), timer)));
}

Example 5 with DataInputStatus

use of org.apache.flink.streaming.runtime.io.DataInputStatus in project flink by apache.

the class LargeSortingDataInputITCase method stringKeySorting.

@Test
public void stringKeySorting() throws Exception {
    int numberOfRecords = 500_000;
    GeneratedRecordsDataInput input = new GeneratedRecordsDataInput(numberOfRecords, 0);
    KeySelector<Tuple3<Integer, String, byte[]>, String> keySelector = value -> value.f1;
    try (MockEnvironment environment = MockEnvironment.builder().build();
        SortingDataInput<Tuple3<Integer, String, byte[]>, String> sortingDataInput = new SortingDataInput<>(input, GeneratedRecordsDataInput.SERIALIZER, new StringSerializer(), keySelector, environment.getMemoryManager(), environment.getIOManager(), true, 1.0, new Configuration(), new DummyInvokable(), new ExecutionConfig())) {
        DataInputStatus inputStatus;
        VerifyingOutput<String> output = new VerifyingOutput<>(keySelector);
        do {
            inputStatus = sortingDataInput.emitNext(output);
        } while (inputStatus != DataInputStatus.END_OF_INPUT);
        assertThat(output.getSeenRecords(), equalTo(numberOfRecords));
    }
}