Examples with ConsumerMetadata org.apache.kafka.clients.consumer.internals.ConsumerMetadata used on opensource projects

Example 41 with ConsumerMetadata

use of org.apache.kafka.clients.consumer.internals.ConsumerMetadata in project kafka by apache.

the class KafkaConsumerTest method testWakeupWithFetchDataAvailable.

@Test
public void testWakeupWithFetchDataAvailable() throws Exception {
    ConsumerMetadata metadata = createMetadata(subscription);
    MockClient client = new MockClient(time, metadata);
    initMetadata(client, Collections.singletonMap(topic, 1));
    Node node = metadata.fetch().nodes().get(0);
    KafkaConsumer<String, String> consumer = newConsumer(time, client, subscription, metadata, assignor, true, groupInstanceId);
    consumer.subscribe(singleton(topic), getConsumerRebalanceListener(consumer));
    prepareRebalance(client, node, assignor, singletonList(tp0), null);
    consumer.updateAssignmentMetadataIfNeeded(time.timer(Long.MAX_VALUE));
    consumer.poll(Duration.ZERO);
    // respond to the outstanding fetch so that we have data available on the next poll
    client.respondFrom(fetchResponse(tp0, 0, 5), node);
    client.poll(0, time.milliseconds());
    consumer.wakeup();
    assertThrows(WakeupException.class, () -> consumer.poll(Duration.ZERO));
    // make sure the position hasn't been updated
    assertEquals(0, consumer.position(tp0));
    // the next poll should return the completed fetch
    ConsumerRecords<String, String> records = consumer.poll(Duration.ZERO);
    assertEquals(5, records.count());
    // Increment time asynchronously to clear timeouts in closing the consumer
    final ScheduledExecutorService exec = Executors.newSingleThreadScheduledExecutor();
    exec.scheduleAtFixedRate(() -> time.sleep(sessionTimeoutMs), 0L, 10L, TimeUnit.MILLISECONDS);
    consumer.close();
    exec.shutdownNow();
    exec.awaitTermination(5L, TimeUnit.SECONDS);
}

Example 42 with ConsumerMetadata

use of org.apache.kafka.clients.consumer.internals.ConsumerMetadata in project kafka by apache.

the class KafkaConsumerTest method testMissingOffsetNoResetPolicy.

@Test
public void testMissingOffsetNoResetPolicy() {
    SubscriptionState subscription = new SubscriptionState(new LogContext(), OffsetResetStrategy.NONE);
    ConsumerMetadata metadata = createMetadata(subscription);
    MockClient client = new MockClient(time, metadata);
    initMetadata(client, Collections.singletonMap(topic, 1));
    Node node = metadata.fetch().nodes().get(0);
    KafkaConsumer<String, String> consumer = newConsumer(time, client, subscription, metadata, assignor, true, groupId, groupInstanceId, false);
    consumer.assign(singletonList(tp0));
    client.prepareResponseFrom(FindCoordinatorResponse.prepareResponse(Errors.NONE, groupId, node), node);
    Node coordinator = new Node(Integer.MAX_VALUE - node.id(), node.host(), node.port());
    // lookup committed offset and find nothing
    client.prepareResponseFrom(offsetResponse(Collections.singletonMap(tp0, -1L), Errors.NONE), coordinator);
    assertThrows(NoOffsetForPartitionException.class, () -> consumer.poll(Duration.ZERO));
}

Example 43 with ConsumerMetadata

use of org.apache.kafka.clients.consumer.internals.ConsumerMetadata in project kafka by apache.

the class KafkaConsumerTest method testChangingRegexSubscription.

@Test
public void testChangingRegexSubscription() {
    String otherTopic = "other";
    TopicPartition otherTopicPartition = new TopicPartition(otherTopic, 0);
    ConsumerMetadata metadata = createMetadata(subscription);
    MockClient client = new MockClient(time, metadata);
    Map<String, Integer> partitionCounts = new HashMap<>();
    partitionCounts.put(topic, 1);
    partitionCounts.put(otherTopic, 1);
    topicIds.put(otherTopic, Uuid.randomUuid());
    initMetadata(client, partitionCounts);
    Node node = metadata.fetch().nodes().get(0);
    KafkaConsumer<String, String> consumer = newConsumer(time, client, subscription, metadata, assignor, false, groupInstanceId);
    Node coordinator = prepareRebalance(client, node, singleton(topic), assignor, singletonList(tp0), null);
    consumer.subscribe(Pattern.compile(topic), getConsumerRebalanceListener(consumer));
    consumer.updateAssignmentMetadataIfNeeded(time.timer(Long.MAX_VALUE));
    consumer.poll(Duration.ZERO);
    assertEquals(singleton(topic), consumer.subscription());
    consumer.subscribe(Pattern.compile(otherTopic), getConsumerRebalanceListener(consumer));
    client.prepareMetadataUpdate(RequestTestUtils.metadataUpdateWithIds(1, partitionCounts, topicIds));
    prepareRebalance(client, node, singleton(otherTopic), assignor, singletonList(otherTopicPartition), coordinator);
    consumer.poll(Duration.ZERO);
    assertEquals(singleton(otherTopic), consumer.subscription());
    consumer.close(Duration.ofMillis(0));
}

Example 44 with ConsumerMetadata

use of org.apache.kafka.clients.consumer.internals.ConsumerMetadata in project kafka by apache.

the class KafkaConsumerTest method testResetToCommittedOffset.

@Test
public void testResetToCommittedOffset() {
    SubscriptionState subscription = new SubscriptionState(new LogContext(), OffsetResetStrategy.NONE);
    ConsumerMetadata metadata = createMetadata(subscription);
    MockClient client = new MockClient(time, metadata);
    initMetadata(client, Collections.singletonMap(topic, 1));
    Node node = metadata.fetch().nodes().get(0);
    KafkaConsumer<String, String> consumer = newConsumer(time, client, subscription, metadata, assignor, true, groupId, groupInstanceId, false);
    consumer.assign(singletonList(tp0));
    client.prepareResponseFrom(FindCoordinatorResponse.prepareResponse(Errors.NONE, groupId, node), node);
    Node coordinator = new Node(Integer.MAX_VALUE - node.id(), node.host(), node.port());
    client.prepareResponseFrom(offsetResponse(Collections.singletonMap(tp0, 539L), Errors.NONE), coordinator);
    consumer.poll(Duration.ZERO);
    assertEquals(539L, consumer.position(tp0));
}

Example 45 with ConsumerMetadata

use of org.apache.kafka.clients.consumer.internals.ConsumerMetadata in project kafka by apache.

the class KafkaConsumerTest method testRebalanceException.

@Test
public void testRebalanceException() {
    ConsumerMetadata metadata = createMetadata(subscription);
    MockClient client = new MockClient(time, metadata);
    initMetadata(client, Collections.singletonMap(topic, 1));
    Node node = metadata.fetch().nodes().get(0);
    KafkaConsumer<String, String> consumer = newConsumer(time, client, subscription, metadata, assignor, true, groupInstanceId);
    consumer.subscribe(singleton(topic), getExceptionConsumerRebalanceListener());
    Node coordinator = new Node(Integer.MAX_VALUE - node.id(), node.host(), node.port());
    client.prepareResponseFrom(FindCoordinatorResponse.prepareResponse(Errors.NONE, groupId, node), node);
    client.prepareResponseFrom(joinGroupFollowerResponse(assignor, 1, memberId, leaderId, Errors.NONE), coordinator);
    client.prepareResponseFrom(syncGroupResponse(singletonList(tp0), Errors.NONE), coordinator);
    // assign throws
    try {
        consumer.updateAssignmentMetadataIfNeeded(time.timer(Long.MAX_VALUE));
        fail("Should throw exception");
    } catch (Throwable e) {
        assertEquals(partitionAssigned + singleTopicPartition, e.getCause().getMessage());
    }
    // the assignment is still updated regardless of the exception
    assertEquals(singleton(tp0), subscription.assignedPartitions());
    // close's revoke throws
    try {
        consumer.close(Duration.ofMillis(0));
        fail("Should throw exception");
    } catch (Throwable e) {
        assertEquals(partitionRevoked + singleTopicPartition, e.getCause().getCause().getMessage());
    }
    consumer.close(Duration.ofMillis(0));
    // the assignment is still updated regardless of the exception
    assertTrue(subscription.assignedPartitions().isEmpty());
}