Examples with ConsumerBuilder org.apache.pulsar.client.api.ConsumerBuilder used on opensource projects

Example 1 with ConsumerBuilder

use of org.apache.pulsar.client.api.ConsumerBuilder in project incubator-pulsar by apache.

the class PerformanceConsumer method main.

public static void main(String[] args) throws Exception {
    final Arguments arguments = new Arguments();
    JCommander jc = new JCommander(arguments);
    jc.setProgramName("pulsar-perf-consumer");
    try {
        jc.parse(args);
    } catch (ParameterException e) {
        System.out.println(e.getMessage());
        jc.usage();
        System.exit(-1);
    }
    if (arguments.help) {
        jc.usage();
        System.exit(-1);
    }
    if (arguments.topic.size() != 1) {
        System.out.println("Only one topic name is allowed");
        jc.usage();
        System.exit(-1);
    }
    if (arguments.confFile != null) {
        Properties prop = new Properties(System.getProperties());
        prop.load(new FileInputStream(arguments.confFile));
        if (arguments.serviceURL == null) {
            arguments.serviceURL = prop.getProperty("brokerServiceUrl");
        }
        if (arguments.serviceURL == null) {
            arguments.serviceURL = prop.getProperty("webServiceUrl");
        }
        // fallback to previous-version serviceUrl property to maintain backward-compatibility
        if (arguments.serviceURL == null) {
            arguments.serviceURL = prop.getProperty("serviceUrl", "http://localhost:8080/");
        }
        if (arguments.authPluginClassName == null) {
            arguments.authPluginClassName = prop.getProperty("authPlugin", null);
        }
        if (arguments.authParams == null) {
            arguments.authParams = prop.getProperty("authParams", null);
        }
        if (arguments.useTls == false) {
            arguments.useTls = Boolean.parseBoolean(prop.getProperty("useTls"));
        }
        if (isBlank(arguments.tlsTrustCertsFilePath)) {
            arguments.tlsTrustCertsFilePath = prop.getProperty("tlsTrustCertsFilePath", "");
        }
    }
    // Dump config variables
    ObjectMapper m = new ObjectMapper();
    ObjectWriter w = m.writerWithDefaultPrettyPrinter();
    log.info("Starting Pulsar performance consumer with config: {}", w.writeValueAsString(arguments));
    final TopicName prefixTopicName = TopicName.get(arguments.topic.get(0));
    final RateLimiter limiter = arguments.rate > 0 ? RateLimiter.create(arguments.rate) : null;
    MessageListener<byte[]> listener = (consumer, msg) -> {
        messagesReceived.increment();
        bytesReceived.add(msg.getData().length);
        if (limiter != null) {
            limiter.acquire();
        }
        long latencyMillis = System.currentTimeMillis() - msg.getPublishTime();
        if (latencyMillis >= 0) {
            recorder.recordValue(latencyMillis);
            cumulativeRecorder.recordValue(latencyMillis);
        }
        consumer.acknowledgeAsync(msg);
    };
    ClientBuilder clientBuilder = // 
    PulsarClient.builder().serviceUrl(// 
    arguments.serviceURL).connectionsPerBroker(// 
    arguments.maxConnections).statsInterval(arguments.statsIntervalSeconds, // 
    TimeUnit.SECONDS).ioThreads(// 
    Runtime.getRuntime().availableProcessors()).enableTls(// 
    arguments.useTls).tlsTrustCertsFilePath(arguments.tlsTrustCertsFilePath);
    if (isNotBlank(arguments.authPluginClassName)) {
        clientBuilder.authentication(arguments.authPluginClassName, arguments.authParams);
    }
    PulsarClient pulsarClient = clientBuilder.build();
    class EncKeyReader implements CryptoKeyReader {

        EncryptionKeyInfo keyInfo = new EncryptionKeyInfo();

        EncKeyReader(byte[] value) {
            keyInfo.setKey(value);
        }

        @Override
        public EncryptionKeyInfo getPublicKey(String keyName, Map<String, String> keyMeta) {
            return null;
        }

        @Override
        public EncryptionKeyInfo getPrivateKey(String keyName, Map<String, String> keyMeta) {
            if (keyName.equals(arguments.encKeyName)) {
                return keyInfo;
            }
            return null;
        }
    }
    List<Future<Consumer<byte[]>>> futures = Lists.newArrayList();
    ConsumerBuilder<byte[]> consumerBuilder = // 
    pulsarClient.newConsumer().messageListener(// 
    listener).receiverQueueSize(// 
    arguments.receiverQueueSize).subscriptionType(arguments.subscriptionType);
    if (arguments.encKeyName != null) {
        byte[] pKey = Files.readAllBytes(Paths.get(arguments.encKeyFile));
        EncKeyReader keyReader = new EncKeyReader(pKey);
        consumerBuilder.cryptoKeyReader(keyReader);
    }
    for (int i = 0; i < arguments.numTopics; i++) {
        final TopicName topicName = (arguments.numTopics == 1) ? prefixTopicName : TopicName.get(String.format("%s-%d", prefixTopicName, i));
        log.info("Adding {} consumers on topic {}", arguments.numConsumers, topicName);
        for (int j = 0; j < arguments.numConsumers; j++) {
            String subscriberName;
            if (arguments.numConsumers > 1) {
                subscriberName = String.format("%s-%d", arguments.subscriberName, j);
            } else {
                subscriberName = arguments.subscriberName;
            }
            futures.add(consumerBuilder.clone().topic(topicName.toString()).subscriptionName(subscriberName).subscribeAsync());
        }
    }
    for (Future<Consumer<byte[]>> future : futures) {
        future.get();
    }
    log.info("Start receiving from {} consumers on {} topics", arguments.numConsumers, arguments.numTopics);
    Runtime.getRuntime().addShutdownHook(new Thread() {

        public void run() {
            printAggregatedStats();
        }
    });
    long oldTime = System.nanoTime();
    Histogram reportHistogram = null;
    while (true) {
        try {
            Thread.sleep(10000);
        } catch (InterruptedException e) {
            break;
        }
        long now = System.nanoTime();
        double elapsed = (now - oldTime) / 1e9;
        double rate = messagesReceived.sumThenReset() / elapsed;
        double throughput = bytesReceived.sumThenReset() / elapsed * 8 / 1024 / 1024;
        reportHistogram = recorder.getIntervalHistogram(reportHistogram);
        log.info("Throughput received: {}  msg/s -- {} Mbit/s --- Latency: mean: {} ms - med: {} - 95pct: {} - 99pct: {} - 99.9pct: {} - 99.99pct: {} - Max: {}", dec.format(rate), dec.format(throughput), dec.format(reportHistogram.getMean()), (long) reportHistogram.getValueAtPercentile(50), (long) reportHistogram.getValueAtPercentile(95), (long) reportHistogram.getValueAtPercentile(99), (long) reportHistogram.getValueAtPercentile(99.9), (long) reportHistogram.getValueAtPercentile(99.99), (long) reportHistogram.getMaxValue());
        reportHistogram.reset();
        oldTime = now;
    }
    pulsarClient.close();
}

Example 2 with ConsumerBuilder

use of org.apache.pulsar.client.api.ConsumerBuilder in project incubator-pulsar by apache.

the class PulsarKafkaConsumer method subscribe.

@Override
public void subscribe(Collection<String> topics, ConsumerRebalanceListener callback) {
    List<CompletableFuture<org.apache.pulsar.client.api.Consumer<byte[]>>> futures = new ArrayList<>();
    List<TopicPartition> topicPartitions = new ArrayList<>();
    try {
        for (String topic : topics) {
            // Create individual subscription on each partition, that way we can keep using the
            // acknowledgeCumulative()
            int numberOfPartitions = ((PulsarClientImpl) client).getNumberOfPartitions(topic).get();
            ConsumerBuilder<byte[]> consumerBuilder = PulsarConsumerKafkaConfig.getConsumerBuilder(client, properties);
            consumerBuilder.subscriptionType(SubscriptionType.Failover);
            consumerBuilder.messageListener(this);
            consumerBuilder.subscriptionName(groupId);
            if (numberOfPartitions > 1) {
                // Subscribe to each partition
                consumerBuilder.consumerName(ConsumerName.generateRandomName());
                for (int i = 0; i < numberOfPartitions; i++) {
                    String partitionName = TopicName.get(topic).getPartition(i).toString();
                    CompletableFuture<org.apache.pulsar.client.api.Consumer<byte[]>> future = consumerBuilder.clone().topic(partitionName).subscribeAsync();
                    int partitionIndex = i;
                    TopicPartition tp = new TopicPartition(topic, partitionIndex);
                    future.thenAccept(consumer -> consumers.putIfAbsent(tp, consumer));
                    futures.add(future);
                    topicPartitions.add(tp);
                }
            } else {
                // Topic has a single partition
                CompletableFuture<org.apache.pulsar.client.api.Consumer<byte[]>> future = consumerBuilder.topic(topic).subscribeAsync();
                TopicPartition tp = new TopicPartition(topic, 0);
                future.thenAccept(consumer -> consumers.putIfAbsent(tp, consumer));
                futures.add(future);
                topicPartitions.add(tp);
            }
        }
        // Wait for all consumers to be ready
        futures.forEach(CompletableFuture::join);
        // Notify the listener is now owning all topics/partitions
        if (callback != null) {
            callback.onPartitionsAssigned(topicPartitions);
        }
    } catch (Exception e) {
        // Close all consumer that might have been successfully created
        futures.forEach(f -> {
            try {
                f.get().close();
            } catch (Exception e1) {
            // Ignore. Consumer already had failed
            }
        });
        throw new RuntimeException(e);
    }
}

Example 3 with ConsumerBuilder

use of org.apache.pulsar.client.api.ConsumerBuilder in project incubator-pulsar by apache.

the class PersistentQueueE2ETest method testRoundRobinBatchDistribution.

// this test is good to have to see the distribution, but every now and then it gets slightly different than the
// expected numbers. keeping this disabled to not break the build, but nevertheless this gives good insight into
// how the round robin distribution algorithm is behaving
@Test(enabled = false)
public void testRoundRobinBatchDistribution() throws Exception {
    final String topicName = "persistent://prop/use/ns-abc/shared-topic5";
    final String subName = "sub5";
    final int numMsgs = 137;
    /* some random number different than default batch size of 100 */
    final AtomicInteger counter1 = new AtomicInteger(0);
    final AtomicInteger counter2 = new AtomicInteger(0);
    final AtomicInteger counter3 = new AtomicInteger(0);
    final CountDownLatch latch = new CountDownLatch(numMsgs * 3);
    ConsumerBuilder<byte[]> consumerBuilder = pulsarClient.newConsumer().topic(topicName).subscriptionName(subName).receiverQueueSize(10).subscriptionType(SubscriptionType.Shared);
    Consumer<byte[]> consumer1 = consumerBuilder.clone().messageListener((consumer, msg) -> {
        try {
            counter1.incrementAndGet();
            consumer.acknowledge(msg);
            latch.countDown();
        } catch (Exception e) {
            fail("Should not fail");
        }
    }).subscribe();
    Consumer<byte[]> consumer2 = consumerBuilder.clone().messageListener((consumer, msg) -> {
        try {
            counter2.incrementAndGet();
            consumer.acknowledge(msg);
            latch.countDown();
        } catch (Exception e) {
            fail("Should not fail");
        }
    }).subscribe();
    Consumer<byte[]> consumer3 = consumerBuilder.clone().messageListener((consumer, msg) -> {
        try {
            counter1.incrementAndGet();
            consumer.acknowledge(msg);
            latch.countDown();
        } catch (Exception e) {
            fail("Should not fail");
        }
    }).subscribe();
    List<CompletableFuture<MessageId>> futures = Lists.newArrayListWithCapacity(numMsgs);
    Producer<byte[]> producer = pulsarClient.newProducer().topic(topicName).create();
    for (int i = 0; i < numMsgs * 3; i++) {
        String message = "msg-" + i;
        futures.add(producer.sendAsync(message.getBytes()));
    }
    FutureUtil.waitForAll(futures).get();
    producer.close();
    latch.await(1, TimeUnit.SECONDS);
    /*
         * total messages = 137 * 3 = 411 Each consumer has 10 permits. There will be 411 / 3*10 = 13 full distributions
         * i.e. each consumer will get 130 messages. In the 14th round, the balance is 411 - 130*3 = 21. Two consumers
         * will get another batch of 10 messages (Total: 140) and the 3rd one will get the last one (Total: 131)
         */
    assertTrue(CollectionUtils.subtract(Lists.newArrayList(140, 140, 131), Lists.newArrayList(counter1.get(), counter2.get(), counter3.get())).isEmpty());
    consumer1.close();
    consumer2.close();
    consumer3.close();
    admin.persistentTopics().delete(topicName);
}