Examples with OneInputStreamTask org.apache.flink.streaming.runtime.tasks.OneInputStreamTask used on opensource projects

Example 6 with OneInputStreamTask

use of org.apache.flink.streaming.runtime.tasks.OneInputStreamTask in project flink by apache.

the class StreamTaskTimerTest method testOpenCloseAndTimestamps.

@Test
public void testOpenCloseAndTimestamps() throws Exception {
    final OneInputStreamTask<String, String> mapTask = new OneInputStreamTask<>();
    final OneInputStreamTaskTestHarness<String, String> testHarness = new OneInputStreamTaskTestHarness<>(mapTask, BasicTypeInfo.STRING_TYPE_INFO, BasicTypeInfo.STRING_TYPE_INFO);
    testHarness.setupOutputForSingletonOperatorChain();
    StreamConfig streamConfig = testHarness.getStreamConfig();
    StreamMap<String, String> mapOperator = new StreamMap<>(new DummyMapFunction<String>());
    streamConfig.setStreamOperator(mapOperator);
    testHarness.invoke();
    testHarness.waitForTaskRunning();
    // first one spawns thread
    mapTask.getProcessingTimeService().registerTimer(System.currentTimeMillis(), new ProcessingTimeCallback() {

        @Override
        public void onProcessingTime(long timestamp) {
        }
    });
    assertEquals(1, StreamTask.TRIGGER_THREAD_GROUP.activeCount());
    testHarness.endInput();
    testHarness.waitForTaskCompletion();
    // thread needs to die in time
    long deadline = System.currentTimeMillis() + 4000;
    while (StreamTask.TRIGGER_THREAD_GROUP.activeCount() > 0 && System.currentTimeMillis() < deadline) {
        Thread.sleep(10);
    }
    assertEquals("Trigger timer thread did not properly shut down", 0, StreamTask.TRIGGER_THREAD_GROUP.activeCount());
}

Example 7 with OneInputStreamTask

use of org.apache.flink.streaming.runtime.tasks.OneInputStreamTask in project flink by apache.

the class StreamTaskTimerTest method startTestHarness.

private StreamTaskTestHarness<?> startTestHarness() throws Exception {
    final OneInputStreamTaskTestHarness<String, String> testHarness = new OneInputStreamTaskTestHarness<>(OneInputStreamTask::new, BasicTypeInfo.STRING_TYPE_INFO, BasicTypeInfo.STRING_TYPE_INFO);
    testHarness.setupOutputForSingletonOperatorChain();
    // Making it impossible to execute the throughput calculation even once during the test.
    final Configuration taskConfig = testHarness.getTaskManagerRuntimeInfo().getConfiguration();
    taskConfig.set(TaskManagerOptions.BUFFER_DEBLOAT_ENABLED, true);
    taskConfig.set(TaskManagerOptions.BUFFER_DEBLOAT_PERIOD, Duration.ofMinutes(10));
    StreamConfig streamConfig = testHarness.getStreamConfig();
    streamConfig.setChainIndex(0);
    streamConfig.setStreamOperator(new StreamMap<String, String>(new DummyMapFunction<>()));
    testHarness.invoke();
    testHarness.waitForTaskRunning();
    return testHarness;
}

Example 8 with OneInputStreamTask

use of org.apache.flink.streaming.runtime.tasks.OneInputStreamTask in project flink by apache.

the class StreamTaskOperatorTimerTest method testOperatorYieldExecutesSelectedTimers.

@Test
public void testOperatorYieldExecutesSelectedTimers() throws Exception {
    final OneInputStreamTaskTestHarness<String, String> testHarness = new OneInputStreamTaskTestHarness<>(OneInputStreamTask::new, BasicTypeInfo.STRING_TYPE_INFO, BasicTypeInfo.STRING_TYPE_INFO);
    testHarness.setupOperatorChain(new OperatorID(), new TestOperatorFactory()).chain(new OperatorID(), new TestOperatorFactory(), StringSerializer.INSTANCE).finish();
    testHarness.invoke();
    testHarness.waitForTaskRunning();
    final String trigger = TRIGGER_PREFIX + 42;
    testHarness.processElement(new StreamRecord<>(trigger));
    testHarness.endInput();
    testHarness.waitForTaskCompletion();
    List<String> events = new ArrayList<>();
    testHarness.getOutput().forEach(element -> events.add(((StreamRecord<String>) element).getValue()));
    assertThat(events, is(Arrays.asList(trigger, RESULT_PREFIX + "1:0", RESULT_PREFIX + "0:0")));
}

Example 9 with OneInputStreamTask

use of org.apache.flink.streaming.runtime.tasks.OneInputStreamTask in project flink by apache.

the class RocksDBAsyncSnapshotTest method testCancelFullyAsyncCheckpoints.

/**
 * This tests ensures that canceling of asynchronous snapshots works as expected and does not
 * block.
 */
@Test
public void testCancelFullyAsyncCheckpoints() throws Exception {
    final OneInputStreamTaskTestHarness<String, String> testHarness = new OneInputStreamTaskTestHarness<>(OneInputStreamTask::new, BasicTypeInfo.STRING_TYPE_INFO, BasicTypeInfo.STRING_TYPE_INFO);
    testHarness.setupOutputForSingletonOperatorChain();
    testHarness.configureForKeyedStream(value -> value, BasicTypeInfo.STRING_TYPE_INFO);
    StreamConfig streamConfig = testHarness.getStreamConfig();
    File dbDir = temporaryFolder.newFolder();
    final EmbeddedRocksDBStateBackend.PriorityQueueStateType timerServicePriorityQueueType = RocksDBOptions.TIMER_SERVICE_FACTORY.defaultValue();
    final int skipStreams;
    if (timerServicePriorityQueueType == EmbeddedRocksDBStateBackend.PriorityQueueStateType.HEAP) {
        // we skip the first created stream, because it is used to checkpoint the timer service,
        // which is
        // currently not asynchronous.
        skipStreams = 1;
    } else if (timerServicePriorityQueueType == EmbeddedRocksDBStateBackend.PriorityQueueStateType.ROCKSDB) {
        skipStreams = 0;
    } else {
        throw new AssertionError(String.format("Unknown timer service priority queue type %s.", timerServicePriorityQueueType));
    }
    // this is the proper instance that we need to call.
    BlockerCheckpointStreamFactory blockerCheckpointStreamFactory = new BlockerCheckpointStreamFactory(4 * 1024 * 1024) {

        int count = skipStreams;

        @Override
        public CheckpointStateOutputStream createCheckpointStateOutputStream(CheckpointedStateScope scope) throws IOException {
            if (count > 0) {
                --count;
                return new BlockingCheckpointOutputStream(new MemCheckpointStreamFactory.MemoryCheckpointOutputStream(maxSize), null, null, Integer.MAX_VALUE);
            } else {
                return super.createCheckpointStateOutputStream(scope);
            }
        }
    };
    // to avoid serialization of the above factory instance, we need to pass it in
    // through a static variable
    StateBackend stateBackend = new BackendForTestStream(new StaticForwardFactory(blockerCheckpointStreamFactory));
    RocksDBStateBackend backend = new RocksDBStateBackend(stateBackend);
    backend.setDbStoragePath(dbDir.getAbsolutePath());
    streamConfig.setStateBackend(backend);
    streamConfig.setStreamOperator(new AsyncCheckpointOperator());
    streamConfig.setOperatorID(new OperatorID());
    TestTaskStateManager taskStateManagerTestMock = new TestTaskStateManager();
    StreamMockEnvironment mockEnv = new StreamMockEnvironment(testHarness.jobConfig, testHarness.taskConfig, testHarness.memorySize, new MockInputSplitProvider(), testHarness.bufferSize, taskStateManagerTestMock);
    blockerCheckpointStreamFactory.setBlockerLatch(new OneShotLatch());
    blockerCheckpointStreamFactory.setWaiterLatch(new OneShotLatch());
    testHarness.invoke(mockEnv);
    testHarness.waitForTaskRunning();
    final OneInputStreamTask<String, String> task = testHarness.getTask();
    task.triggerCheckpointAsync(new CheckpointMetaData(42, 17), CheckpointOptions.forCheckpointWithDefaultLocation()).get();
    testHarness.processElement(new StreamRecord<>("Wohoo", 0));
    blockerCheckpointStreamFactory.getWaiterLatch().await();
    task.cancel();
    blockerCheckpointStreamFactory.getBlockerLatch().trigger();
    testHarness.endInput();
    ExecutorService threadPool = task.getAsyncOperationsThreadPool();
    threadPool.shutdown();
    Assert.assertTrue(threadPool.awaitTermination(60_000, TimeUnit.MILLISECONDS));
    Set<BlockingCheckpointOutputStream> createdStreams = blockerCheckpointStreamFactory.getAllCreatedStreams();
    for (BlockingCheckpointOutputStream stream : createdStreams) {
        Assert.assertTrue("Not all of the " + createdStreams.size() + " created streams have been closed.", stream.isClosed());
    }
    try {
        testHarness.waitForTaskCompletion();
        fail("Operation completed. Cancel failed.");
    } catch (Exception expected) {
        Throwable cause = expected.getCause();
        if (!(cause instanceof CancelTaskException)) {
            fail("Unexpected exception: " + expected);
        }
    }
}