Examples with StreamConfig co.cask.cdap.data2.transaction.stream.StreamConfig used on opensource projects

Example 11 with StreamConfig

use of co.cask.cdap.data2.transaction.stream.StreamConfig in project cdap by caskdata.

the class InMemoryStreamFileWriterFactory method create.

@Override
public FileWriter<StreamEvent> create(StreamConfig config, int generation) throws IOException {
    final QueueProducer producer = queueClientFactory.createProducer(QueueName.fromStream(config.getStreamId()));
    final List<TransactionAware> txAwares = Lists.newArrayList();
    if (producer instanceof TransactionAware) {
        txAwares.add((TransactionAware) producer);
    }
    final TransactionExecutor txExecutor = executorFactory.createExecutor(txAwares);
    // Adapt the FileWriter interface into Queue2Producer
    return new FileWriter<StreamEvent>() {

        private final List<StreamEvent> events = Lists.newArrayList();

        @Override
        public void append(StreamEvent event) throws IOException {
            events.add(event);
        }

        @Override
        public void appendAll(Iterator<? extends StreamEvent> events) throws IOException {
            Iterators.addAll(this.events, events);
        }

        @Override
        public void close() throws IOException {
            producer.close();
        }

        @Override
        public void flush() throws IOException {
            try {
                txExecutor.execute(new TransactionExecutor.Subroutine() {

                    @Override
                    public void apply() throws Exception {
                        for (StreamEvent event : events) {
                            producer.enqueue(new QueueEntry(STREAM_EVENT_CODEC.encodePayload(event)));
                        }
                        events.clear();
                    }
                });
            } catch (TransactionFailureException e) {
                throw new IOException(e);
            } catch (InterruptedException e) {
                Thread.currentThread().interrupt();
                throw new InterruptedIOException();
            }
        }
    };
}

Example 12 with StreamConfig

use of co.cask.cdap.data2.transaction.stream.StreamConfig in project cdap by caskdata.

the class StreamConsumerTestBase method testTTLStartingFile.

@Category(SlowTests.class)
@Test
public void testTTLStartingFile() throws Exception {
    String stream = "testTTLStartingFile";
    StreamId streamId = TEST_NAMESPACE.stream(stream);
    StreamAdmin streamAdmin = getStreamAdmin();
    // Create stream with ttl of 3 seconds and partition duration of 3 seconds
    final long ttl = TimeUnit.SECONDS.toMillis(3);
    Properties streamProperties = new Properties();
    streamProperties.setProperty(Constants.Stream.TTL, Long.toString(ttl));
    streamProperties.setProperty(Constants.Stream.PARTITION_DURATION, Long.toString(ttl));
    streamAdmin.create(streamId, streamProperties);
    StreamConfig streamConfig = streamAdmin.getConfig(streamId);
    streamAdmin.configureGroups(streamId, ImmutableMap.of(0L, 1, 1L, 1));
    StreamConsumerFactory consumerFactory = getConsumerFactory();
    StreamConsumer consumer = consumerFactory.create(streamId, stream, new ConsumerConfig(0L, 0, 1, DequeueStrategy.FIFO, null));
    StreamConsumer newConsumer;
    Set<StreamEvent> expectedEvents = Sets.newTreeSet(STREAM_EVENT_COMPARATOR);
    try {
        // Create a new consumer for second consumer verification.
        // Need to create consumer before write event because in HBase, creation of consumer took couple seconds.
        newConsumer = consumerFactory.create(streamId, stream, new ConsumerConfig(1L, 0, 1, DequeueStrategy.FIFO, null));
        // write 20 events in a partition that will be expired due to sleeping the TTL
        writeEvents(streamConfig, "Phase 0 expired event ", 20);
        Thread.sleep(ttl);
        verifyEvents(consumer, expectedEvents);
        // also verify for a new consumer
        try {
            verifyEvents(newConsumer, expectedEvents);
        } finally {
            newConsumer.close();
        }
        // Create a new consumer for second consumer verification (with clean state)
        // Need to create consumer before write event because in HBase, creation of consumer took couple seconds.
        streamAdmin.configureGroups(streamId, ImmutableMap.of(0L, 1));
        streamAdmin.configureGroups(streamId, ImmutableMap.of(0L, 1, 1L, 1));
        newConsumer = consumerFactory.create(streamId, stream, new ConsumerConfig(1L, 0, 1, DequeueStrategy.FIFO, null));
        // write 20 events in a partition and read it back immediately. They shouldn't expired.
        expectedEvents.addAll(writeEvents(streamConfig, "Phase 1 non-expired event ", 20));
        verifyEvents(consumer, expectedEvents);
        // also verify for a new consumer
        try {
            verifyEvents(newConsumer, expectedEvents);
        } finally {
            newConsumer.close();
        }
        // Create a new consumer for second consumer verification (with clean state)
        // Need to create consumer before write event because in HBase, creation of consumer took couple seconds.
        streamAdmin.configureGroups(streamId, ImmutableMap.of(0L, 1));
        streamAdmin.configureGroups(streamId, ImmutableMap.of(0L, 1, 1L, 1));
        newConsumer = consumerFactory.create(streamId, stream, new ConsumerConfig(1L, 0, 1, DequeueStrategy.FIFO, null));
        // write 20 events in a partition that will be expired due to sleeping the TTL
        // This will write to a new partition different then the first batch write.
        // Also, because it sleep TTL time, the previous batch write would also get expired.
        expectedEvents.clear();
        writeEvents(streamConfig, "Phase 2 expired event ", 20);
        Thread.sleep(ttl);
        verifyEvents(consumer, expectedEvents);
        // also verify for a new consumer
        try {
            verifyEvents(newConsumer, expectedEvents);
        } finally {
            newConsumer.close();
        }
        // Create a new consumer for second consumer verification (with clean state)
        // Need to create consumer before write event because in HBase, creation of consumer took couple seconds.
        streamAdmin.configureGroups(streamId, ImmutableMap.of(0L, 1));
        streamAdmin.configureGroups(streamId, ImmutableMap.of(0L, 1, 1L, 1));
        newConsumer = consumerFactory.create(streamId, stream, new ConsumerConfig(1L, 0, 1, DequeueStrategy.FIFO, null));
        // write 20 events in a partition and read it back immediately. They shouldn't expire.
        expectedEvents.addAll(writeEvents(streamConfig, "Phase 3 non-expired event ", 20));
        verifyEvents(consumer, expectedEvents);
        // also verify for a new consumer
        try {
            verifyEvents(newConsumer, expectedEvents);
        } finally {
            newConsumer.close();
        }
        // Should be no more pending events
        expectedEvents.clear();
        verifyEvents(consumer, expectedEvents);
    } finally {
        consumer.close();
    }
}

Example 13 with StreamConfig

use of co.cask.cdap.data2.transaction.stream.StreamConfig in project cdap by caskdata.

the class StreamConsumerTestBase method testFIFORollback.

@Test
public void testFIFORollback() throws Exception {
    String stream = "testFIFORollback";
    StreamId streamId = TEST_NAMESPACE.stream(stream);
    StreamAdmin streamAdmin = getStreamAdmin();
    streamAdmin.create(streamId);
    StreamConfig streamConfig = streamAdmin.getConfig(streamId);
    // Writes 5 events
    writeEvents(streamConfig, "Testing ", 5);
    streamAdmin.configureInstances(streamId, 0L, 2);
    StreamConsumerFactory consumerFactory = getConsumerFactory();
    StreamConsumer consumer0 = consumerFactory.create(streamId, "fifo.rollback", new ConsumerConfig(0L, 0, 2, DequeueStrategy.FIFO, null));
    StreamConsumer consumer1 = consumerFactory.create(streamId, "fifo.rollback", new ConsumerConfig(0L, 1, 2, DequeueStrategy.FIFO, null));
    // Try to dequeue using both consumers
    TransactionContext context0 = createTxContext(consumer0);
    TransactionContext context1 = createTxContext(consumer1);
    context0.start();
    context1.start();
    DequeueResult<StreamEvent> result0 = consumer0.poll(1, 1, TimeUnit.SECONDS);
    DequeueResult<StreamEvent> result1 = consumer1.poll(1, 1, TimeUnit.SECONDS);
    Assert.assertEquals("Testing 0", Charsets.UTF_8.decode(result0.iterator().next().getBody()).toString());
    Assert.assertEquals("Testing 1", Charsets.UTF_8.decode(result1.iterator().next().getBody()).toString());
    // Commit the first one, rollback the second one.
    context0.finish();
    context1.abort();
    // Dequeue again with the consuemrs
    context0.start();
    context1.start();
    result0 = consumer0.poll(1, 1, TimeUnit.SECONDS);
    result1 = consumer1.poll(1, 1, TimeUnit.SECONDS);
    // Expect consumer 0 keep proceeding while consumer 1 will retry with what it claimed in previous transaction.
    // This is the optimization in FIFO mode to avoid going back and rescanning.
    Assert.assertEquals("Testing 2", Charsets.UTF_8.decode(result0.iterator().next().getBody()).toString());
    Assert.assertEquals("Testing 1", Charsets.UTF_8.decode(result1.iterator().next().getBody()).toString());
    // Commit both
    context0.finish();
    context1.finish();
    consumer0.close();
    consumer1.close();
}

Example 14 with StreamConfig

use of co.cask.cdap.data2.transaction.stream.StreamConfig in project cdap by caskdata.

the class StreamTailer method main.

public static void main(String[] args) throws Exception {
    if (args.length < 1) {
        System.out.println(String.format("Usage: java %s [streamName]", StreamTailer.class.getName()));
        return;
    }
    String streamName = args[0];
    CConfiguration cConf = CConfiguration.create();
    Configuration hConf = new Configuration();
    String txClientId = StreamTailer.class.getName();
    Injector injector = Guice.createInjector(new ConfigModule(cConf, hConf), new DataFabricModules(txClientId).getDistributedModules(), new DataSetsModules().getDistributedModules(), new LocationRuntimeModule().getDistributedModules(), new ExploreClientModule(), new ViewAdminModules().getDistributedModules(), new StreamAdminModules().getDistributedModules(), new AuthorizationEnforcementModule().getDistributedModules(), new AuthenticationContextModules().getMasterModule(), new NotificationFeedClientModule());
    StreamAdmin streamAdmin = injector.getInstance(StreamAdmin.class);
    //TODO: get namespace from commandline arguments
    StreamId streamId = NamespaceId.DEFAULT.stream(streamName);
    StreamConfig streamConfig = streamAdmin.getConfig(streamId);
    Location streamLocation = streamConfig.getLocation();
    List<Location> eventFiles = Lists.newArrayList();
    for (Location partition : streamLocation.list()) {
        if (!partition.isDirectory()) {
            continue;
        }
        for (Location file : partition.list()) {
            if (StreamFileType.EVENT.isMatched(file.getName())) {
                eventFiles.add(file);
            }
        }
    }
    int generation = StreamUtils.getGeneration(streamConfig);
    MultiLiveStreamFileReader reader = new MultiLiveStreamFileReader(streamConfig, ImmutableList.copyOf(Iterables.transform(eventFiles, createOffsetConverter(generation))));
    List<StreamEvent> events = Lists.newArrayList();
    while (reader.read(events, 10, 100, TimeUnit.MILLISECONDS) >= 0) {
        for (StreamEvent event : events) {
            System.out.println(event.getTimestamp() + " " + Charsets.UTF_8.decode(event.getBody()));
        }
        events.clear();
    }
    reader.close();
}

Example 15 with StreamConfig

use of co.cask.cdap.data2.transaction.stream.StreamConfig in project cdap by caskdata.

the class LocalStreamService method initialize.

@Override
protected void initialize() throws Exception {
    for (Map.Entry<NamespaceId, StreamSpecification> streamSpecEntry : streamMetaStore.listStreams().entries()) {
        StreamId streamId = streamSpecEntry.getKey().stream(streamSpecEntry.getValue().getName());
        StreamConfig config;
        try {
            config = streamAdmin.getConfig(streamId);
        } catch (FileNotFoundException e) {
            // TODO: this kind of inconsistency should not happen. [CDAP-5722]
            LOG.warn("Inconsistent stream state: Stream '{}' exists in meta store " + "but its configuration file does not exist", streamId);
            continue;
        } catch (Exception e) {
            LOG.warn("Inconsistent stream state: Stream '{}' exists in meta store " + "but its configuration cannot be read:", streamId, e);
            continue;
        }
        long eventsSizes = getStreamEventsSize(streamId);
        createSizeAggregator(streamId, eventsSizes, config.getNotificationThresholdMB());
    }
}