Examples with Consumer com.yahoo.pulsar.client.api.Consumer used on opensource projects

Example 16 with Consumer

use of com.yahoo.pulsar.client.api.Consumer in project pulsar by yahoo.

the class BacklogQuotaManagerTest method testConsumerBacklogEviction.

@Test
public void testConsumerBacklogEviction() throws Exception {
    assertEquals(admin.namespaces().getBacklogQuotaMap("prop/usc/ns-quota"), Maps.newTreeMap());
    admin.namespaces().setBacklogQuota("prop/usc/ns-quota", new BacklogQuota(10 * 1024, BacklogQuota.RetentionPolicy.consumer_backlog_eviction));
    ClientConfiguration clientConf = new ClientConfiguration();
    clientConf.setStatsInterval(0, TimeUnit.SECONDS);
    PulsarClient client = PulsarClient.create(adminUrl.toString(), clientConf);
    final String topic1 = "persistent://prop/usc/ns-quota/topic1";
    final String subName1 = "c1";
    final String subName2 = "c2";
    final int numMsgs = 20;
    Consumer consumer1 = client.subscribe(topic1, subName1);
    Consumer consumer2 = client.subscribe(topic1, subName2);
    com.yahoo.pulsar.client.api.Producer producer = client.createProducer(topic1);
    byte[] content = new byte[1024];
    for (int i = 0; i < numMsgs; i++) {
        producer.send(content);
        consumer1.receive();
        consumer2.receive();
    }
    Thread.sleep((TIME_TO_CHECK_BACKLOG_QUOTA + 1) * 1000);
    rolloverStats();
    PersistentTopicStats stats = admin.persistentTopics().getStats(topic1);
    Assert.assertTrue(stats.storageSize < 10 * 1024, "Storage size is [" + stats.storageSize + "]");
    client.close();
}

Example 17 with Consumer

use of com.yahoo.pulsar.client.api.Consumer in project pulsar by yahoo.

the class BacklogQuotaManagerTest method testConsumerBacklogEvictionWithAck.

@Test
public void testConsumerBacklogEvictionWithAck() throws Exception {
    assertEquals(admin.namespaces().getBacklogQuotaMap("prop/usc/ns-quota"), Maps.newTreeMap());
    admin.namespaces().setBacklogQuota("prop/usc/ns-quota", new BacklogQuota(10 * 1024, BacklogQuota.RetentionPolicy.consumer_backlog_eviction));
    PulsarClient client = PulsarClient.create(adminUrl.toString());
    final String topic1 = "persistent://prop/usc/ns-quota/topic11";
    final String subName1 = "c11";
    final String subName2 = "c21";
    final int numMsgs = 20;
    Consumer consumer1 = client.subscribe(topic1, subName1);
    Consumer consumer2 = client.subscribe(topic1, subName2);
    com.yahoo.pulsar.client.api.Producer producer = client.createProducer(topic1);
    byte[] content = new byte[1024];
    for (int i = 0; i < numMsgs; i++) {
        producer.send(content);
        // only one consumer acknowledges the message
        consumer1.acknowledge(consumer1.receive());
        consumer2.receive();
    }
    Thread.sleep((TIME_TO_CHECK_BACKLOG_QUOTA + 1) * 1000);
    rolloverStats();
    PersistentTopicStats stats = admin.persistentTopics().getStats(topic1);
    Assert.assertTrue(stats.storageSize <= 10 * 1024, "Storage size is [" + stats.storageSize + "]");
    client.close();
}

Example 18 with Consumer

use of com.yahoo.pulsar.client.api.Consumer in project pulsar by yahoo.

the class BacklogQuotaManagerTest method testProducerExceptionAndThenUnblock.

@Test
public void testProducerExceptionAndThenUnblock() throws Exception {
    assertEquals(admin.namespaces().getBacklogQuotaMap("prop/usc/quotahold"), Maps.newTreeMap());
    admin.namespaces().setBacklogQuota("prop/usc/quotahold", new BacklogQuota(10 * 1024, BacklogQuota.RetentionPolicy.producer_exception));
    final ClientConfiguration clientConf = new ClientConfiguration();
    clientConf.setStatsInterval(0, TimeUnit.SECONDS);
    final PulsarClient client = PulsarClient.create(adminUrl.toString(), clientConf);
    final String topic1 = "persistent://prop/usc/quotahold/exceptandunblock";
    final String subName1 = "c1except";
    boolean gotException = false;
    Consumer consumer = client.subscribe(topic1, subName1);
    ProducerConfiguration producerConfiguration = new ProducerConfiguration();
    producerConfiguration.setSendTimeout(2, TimeUnit.SECONDS);
    byte[] content = new byte[1024];
    Producer producer = client.createProducer(topic1, producerConfiguration);
    for (int i = 0; i < 10; i++) {
        producer.send(content);
    }
    Thread.sleep((TIME_TO_CHECK_BACKLOG_QUOTA + 1) * 1000);
    try {
        // try to send over backlog quota and make sure it fails
        producer.send(content);
        producer.send(content);
        Assert.fail("backlog quota did not exceed");
    } catch (PulsarClientException ce) {
        Assert.assertTrue(ce instanceof PulsarClientException.ProducerBlockedQuotaExceededException || ce instanceof PulsarClientException.TimeoutException, ce.getMessage());
        gotException = true;
    }
    Assert.assertTrue(gotException, "backlog exceeded exception did not occur");
    // now remove backlog and ensure that producer is unblockedrolloverStats();
    PersistentTopicStats stats = admin.persistentTopics().getStats(topic1);
    int backlog = (int) stats.subscriptions.get(subName1).msgBacklog;
    for (int i = 0; i < backlog; i++) {
        Message msg = consumer.receive();
        consumer.acknowledge(msg);
    }
    Thread.sleep((TIME_TO_CHECK_BACKLOG_QUOTA + 1) * 1000);
    // publish should work now
    Exception sendException = null;
    gotException = false;
    try {
        for (int i = 0; i < 5; i++) {
            producer.send(content);
        }
    } catch (Exception e) {
        gotException = true;
        sendException = e;
    }
    Assert.assertFalse(gotException, "unable to publish due to " + sendException);
    client.close();
}

Example 19 with Consumer

use of com.yahoo.pulsar.client.api.Consumer in project pulsar by yahoo.

the class BatchMessageTest method testSimpleBatchProducerWithFixedBatchTime.

@Test(dataProvider = "codec")
public void testSimpleBatchProducerWithFixedBatchTime(CompressionType compressionType) throws Exception {
    int numMsgs = 100;
    final String topicName = "persistent://prop/use/ns-abc/testSimpleBatchProducerWithFixedBatchTime";
    final String subscriptionName = "time-sub-1" + compressionType.toString();
    Consumer consumer = pulsarClient.subscribe(topicName, subscriptionName);
    consumer.close();
    ProducerConfiguration producerConf = new ProducerConfiguration();
    producerConf.setCompressionType(compressionType);
    producerConf.setBatchingMaxPublishDelay(10, TimeUnit.MILLISECONDS);
    producerConf.setBatchingEnabled(true);
    Producer producer = pulsarClient.createProducer(topicName, producerConf);
    Random random = new Random();
    List<CompletableFuture<MessageId>> sendFutureList = Lists.newArrayList();
    for (int i = 0; i < numMsgs; i++) {
        // put a random sleep from 0 to 3 ms
        Thread.sleep(random.nextInt(4));
        byte[] message = ("msg-" + i).getBytes();
        Message msg = MessageBuilder.create().setContent(message).build();
        sendFutureList.add(producer.sendAsync(msg));
    }
    FutureUtil.waitForAll(sendFutureList).get();
    PersistentTopic topic = (PersistentTopic) pulsar.getBrokerService().getTopicReference(topicName);
    rolloverPerIntervalStats();
    assertTrue(topic.getProducers().values().iterator().next().getStats().msgRateIn > 0.0);
    LOG.info("Sent {} messages, backlog is {} messages", numMsgs, topic.getPersistentSubscription(subscriptionName).getNumberOfEntriesInBacklog());
    assertTrue(topic.getPersistentSubscription(subscriptionName).getNumberOfEntriesInBacklog() < numMsgs);
    producer.close();
}

Example 20 with Consumer

use of com.yahoo.pulsar.client.api.Consumer in project pulsar by yahoo.

the class BatchMessageTest method testSimpleBatchProducerConsumer1kMessages.

@Test
public void testSimpleBatchProducerConsumer1kMessages() throws Exception {
    int numMsgs = 2000;
    int numMsgsInBatch = 4;
    final String topicName = "persistent://prop/use/ns-abc/testSimpleBatchProducerConsumer1kMessages";
    final String subscriptionName = "pc1k-sub-1";
    Consumer consumer = pulsarClient.subscribe(topicName, subscriptionName);
    consumer.close();
    ProducerConfiguration producerConf = new ProducerConfiguration();
    producerConf.setBatchingMaxPublishDelay(30000, TimeUnit.MILLISECONDS);
    producerConf.setBatchingMaxMessages(numMsgsInBatch);
    producerConf.setBatchingEnabled(true);
    Producer producer = pulsarClient.createProducer(topicName, producerConf);
    List<CompletableFuture<MessageId>> sendFutureList = Lists.newArrayList();
    for (int i = 0; i < numMsgs; i++) {
        byte[] message = ("msg-" + i).getBytes();
        Message msg = MessageBuilder.create().setContent(message).build();
        sendFutureList.add(producer.sendAsync(msg));
    }
    FutureUtil.waitForAll(sendFutureList).get();
    int sendError = 0;
    for (CompletableFuture<MessageId> sendFuture : sendFutureList) {
        if (sendFuture.isCompletedExceptionally()) {
            ++sendError;
        }
    }
    if (sendError != 0) {
        LOG.warn("[{}] Error sending {} messages", subscriptionName, sendError);
        numMsgs = numMsgs - sendError;
    }
    LOG.info("[{}] sent {} messages", subscriptionName, numMsgs);
    PersistentTopic topic = (PersistentTopic) pulsar.getBrokerService().getTopicReference(topicName);
    // allow stats to be updated..
    Thread.sleep(5000);
    LOG.info("[{}] checking backlog stats..");
    rolloverPerIntervalStats();
    assertEquals(topic.getPersistentSubscription(subscriptionName).getNumberOfEntriesInBacklog(), numMsgs / numMsgsInBatch);
    consumer = pulsarClient.subscribe(topicName, subscriptionName);
    Message lastunackedMsg = null;
    for (int i = 0; i < numMsgs; i++) {
        Message msg = consumer.receive(1, TimeUnit.SECONDS);
        assertNotNull(msg);
        lastunackedMsg = msg;
    }
    if (lastunackedMsg != null) {
        consumer.acknowledgeCumulative(lastunackedMsg);
    }
    Thread.sleep(100);
    assertEquals(topic.getPersistentSubscription(subscriptionName).getNumberOfEntriesInBacklog(), 0);
    consumer.close();
    producer.close();
}