Examples with StateObject org.apache.flink.runtime.state.StateObject used on opensource projects

Example 1 with StateObject

use of org.apache.flink.runtime.state.StateObject in project flink by apache.

the class OperatorSnapshotFinalizerTest method testRunAndExtract.

/**
 * Test that the runnable futures are executed and the result is correctly extracted.
 */
@Test
public void testRunAndExtract() throws Exception {
    Random random = new Random(0x42);
    KeyedStateHandle keyedTemplate = StateHandleDummyUtil.createNewKeyedStateHandle(new KeyGroupRange(0, 0));
    OperatorStateHandle operatorTemplate = StateHandleDummyUtil.createNewOperatorStateHandle(2, random);
    InputChannelStateHandle inputChannelTemplate = StateHandleDummyUtil.createNewInputChannelStateHandle(2, random);
    ResultSubpartitionStateHandle resultSubpartitionTemplate = StateHandleDummyUtil.createNewResultSubpartitionStateHandle(2, random);
    SnapshotResult<KeyedStateHandle> manKeyed = withLocalState(deepDummyCopy(keyedTemplate), deepDummyCopy(keyedTemplate));
    SnapshotResult<KeyedStateHandle> rawKeyed = withLocalState(deepDummyCopy(keyedTemplate), deepDummyCopy(keyedTemplate));
    SnapshotResult<OperatorStateHandle> manOper = withLocalState(deepDummyCopy(operatorTemplate), deepDummyCopy(operatorTemplate));
    SnapshotResult<OperatorStateHandle> rawOper = withLocalState(deepDummyCopy(operatorTemplate), deepDummyCopy(operatorTemplate));
    SnapshotResult<StateObjectCollection<InputChannelStateHandle>> inputChannel = withLocalState(singleton(deepDummyCopy(inputChannelTemplate)), singleton(deepDummyCopy(inputChannelTemplate)));
    SnapshotResult<StateObjectCollection<ResultSubpartitionStateHandle>> resultSubpartition = withLocalState(singleton(deepDummyCopy(resultSubpartitionTemplate)), singleton(deepDummyCopy(resultSubpartitionTemplate)));
    OperatorSnapshotFutures snapshotFutures = new OperatorSnapshotFutures(new PseudoNotDoneFuture<>(manKeyed), new PseudoNotDoneFuture<>(rawKeyed), new PseudoNotDoneFuture<>(manOper), new PseudoNotDoneFuture<>(rawOper), new PseudoNotDoneFuture<>(inputChannel), new PseudoNotDoneFuture<>(resultSubpartition));
    for (Future<?> f : snapshotFutures.getAllFutures()) {
        assertFalse(f.isDone());
    }
    OperatorSnapshotFinalizer finalizer = new OperatorSnapshotFinalizer(snapshotFutures);
    for (Future<?> f : snapshotFutures.getAllFutures()) {
        assertTrue(f.isDone());
    }
    Map<SnapshotResult<?>, Function<OperatorSubtaskState, ? extends StateObject>> map = new HashMap<>();
    map.put(manKeyed, headExtractor(OperatorSubtaskState::getManagedKeyedState));
    map.put(rawKeyed, headExtractor(OperatorSubtaskState::getRawKeyedState));
    map.put(manOper, headExtractor(OperatorSubtaskState::getManagedOperatorState));
    map.put(rawOper, headExtractor(OperatorSubtaskState::getRawOperatorState));
    map.put(inputChannel, OperatorSubtaskState::getInputChannelState);
    map.put(resultSubpartition, OperatorSubtaskState::getResultSubpartitionState);
    for (Map.Entry<SnapshotResult<?>, Function<OperatorSubtaskState, ? extends StateObject>> e : map.entrySet()) {
        assertEquals(e.getKey().getJobManagerOwnedSnapshot(), e.getValue().apply(finalizer.getJobManagerOwnedState()));
    }
    for (Map.Entry<SnapshotResult<?>, Function<OperatorSubtaskState, ? extends StateObject>> e : map.entrySet()) {
        assertEquals(e.getKey().getTaskLocalSnapshot(), e.getValue().apply(finalizer.getTaskLocalState()));
    }
}

Example 2 with StateObject

use of org.apache.flink.runtime.state.StateObject in project flink by apache.

the class StateHandleStoreUtilsTest method testSerializationOrDiscardWithDiscardFailure.

@Test
public void testSerializationOrDiscardWithDiscardFailure() throws Exception {
    final Exception discardException = new IllegalStateException("Expected IllegalStateException that should be suppressed.");
    final StateObject original = new FailingSerializationStateObject(() -> {
        throw discardException;
    });
    try {
        StateHandleStoreUtils.serializeOrDiscard(original);
        fail("An IOException is expected to be thrown.");
    } catch (IOException e) {
        // IOException is expected
        assertThat(e.getSuppressed().length, is(1));
        assertThat(e.getSuppressed()[0], is(discardException));
    }
}

Example 3 with StateObject

use of org.apache.flink.runtime.state.StateObject in project flink by apache.

the class StateHandleStoreUtilsTest method testSerializeOrDiscardFailureHandling.

@Test
public void testSerializeOrDiscardFailureHandling() throws Exception {
    final AtomicBoolean discardCalled = new AtomicBoolean(false);
    final StateObject original = new FailingSerializationStateObject(() -> discardCalled.set(true));
    try {
        StateHandleStoreUtils.serializeOrDiscard(original);
        fail("An IOException is expected to be thrown.");
    } catch (IOException e) {
    // IOException is expected
    }
    assertThat(discardCalled.get(), is(true));
}

Example 4 with StateObject

use of org.apache.flink.runtime.state.StateObject in project flink by apache.

the class OperatorSnapshotFutures method cancel.

/**
 * @return discarded state size (if available).
 */
public Tuple2<Long, Long> cancel() throws Exception {
    List<Tuple2<Future<? extends StateObject>, String>> pairs = new ArrayList<>();
    pairs.add(new Tuple2<>(getKeyedStateManagedFuture(), "managed keyed"));
    pairs.add(new Tuple2<>(getKeyedStateRawFuture(), "managed operator"));
    pairs.add(new Tuple2<>(getOperatorStateManagedFuture(), "raw keyed"));
    pairs.add(new Tuple2<>(getOperatorStateRawFuture(), "raw operator"));
    pairs.add(new Tuple2<>(getInputChannelStateFuture(), "input channel"));
    pairs.add(new Tuple2<>(getResultSubpartitionStateFuture(), "result subpartition"));
    final long[] sizeTuple = new long[2];
    try (Closer closer = Closer.create()) {
        for (Tuple2<Future<? extends StateObject>, String> pair : pairs) {
            closer.register(() -> {
                try {
                    Tuple2<Long, Long> tuple = discardStateFuture(pair.f0);
                    sizeTuple[0] += tuple.f0;
                    sizeTuple[1] += tuple.f1;
                } catch (Exception e) {
                    throw new RuntimeException(String.format("Could not properly cancel %s state future", pair.f1), e);
                }
            });
        }
    }
    return Tuple2.of(sizeTuple[0], sizeTuple[1]);
}