Examples with GroupCoordinatorResponse org.apache.kafka.common.requests.GroupCoordinatorResponse used on opensource projects

Example 1 with GroupCoordinatorResponse

use of org.apache.kafka.common.requests.GroupCoordinatorResponse in project kafka by apache.

the class KafkaConsumerTest method testManualAssignmentChangeWithAutoCommitDisabled.

@Test
public void testManualAssignmentChangeWithAutoCommitDisabled() {
    int rebalanceTimeoutMs = 60000;
    int sessionTimeoutMs = 30000;
    int heartbeatIntervalMs = 3000;
    int autoCommitIntervalMs = 1000;
    Time time = new MockTime();
    Map<String, Integer> tpCounts = new HashMap<>();
    tpCounts.put(topic, 1);
    tpCounts.put(topic2, 1);
    Cluster cluster = TestUtils.singletonCluster(tpCounts);
    Node node = cluster.nodes().get(0);
    Metadata metadata = new Metadata(0, Long.MAX_VALUE);
    metadata.update(cluster, Collections.<String>emptySet(), time.milliseconds());
    MockClient client = new MockClient(time, metadata);
    client.setNode(node);
    PartitionAssignor assignor = new RangeAssignor();
    final KafkaConsumer<String, String> consumer = newConsumer(time, client, metadata, assignor, rebalanceTimeoutMs, sessionTimeoutMs, heartbeatIntervalMs, false, autoCommitIntervalMs);
    // lookup coordinator
    client.prepareResponseFrom(new GroupCoordinatorResponse(Errors.NONE, node), node);
    Node coordinator = new Node(Integer.MAX_VALUE - node.id(), node.host(), node.port());
    // manual assignment
    consumer.assign(Arrays.asList(tp0));
    consumer.seekToBeginning(Arrays.asList(tp0));
    // fetch offset for one topic
    client.prepareResponseFrom(offsetResponse(Collections.singletonMap(tp0, 0L), Errors.NONE), coordinator);
    assertEquals(0, consumer.committed(tp0).offset());
    // verify that assignment immediately changes
    assertTrue(consumer.assignment().equals(Collections.singleton(tp0)));
    // there shouldn't be any need to lookup the coordinator or fetch committed offsets.
    // we just lookup the starting position and send the record fetch.
    client.prepareResponse(listOffsetsResponse(Collections.singletonMap(tp0, 10L), Errors.NONE));
    client.prepareResponse(fetchResponse(tp0, 10L, 1));
    ConsumerRecords<String, String> records = consumer.poll(0);
    assertEquals(1, records.count());
    assertEquals(11L, consumer.position(tp0));
    // new manual assignment
    consumer.assign(Arrays.asList(t2p0));
    // verify that assignment immediately changes
    assertTrue(consumer.assignment().equals(Collections.singleton(t2p0)));
    // the auto commit is disabled, so no offset commit request should be sent
    for (ClientRequest req : client.requests()) assertTrue(req.requestBuilder().apiKey() != ApiKeys.OFFSET_COMMIT);
    client.requests().clear();
    consumer.close();
}

Example 2 with GroupCoordinatorResponse

use of org.apache.kafka.common.requests.GroupCoordinatorResponse in project kafka by apache.

the class KafkaConsumerTest method testManualAssignmentChangeWithAutoCommitEnabled.

@Test
public void testManualAssignmentChangeWithAutoCommitEnabled() {
    int rebalanceTimeoutMs = 60000;
    int sessionTimeoutMs = 30000;
    int heartbeatIntervalMs = 3000;
    int autoCommitIntervalMs = 1000;
    Time time = new MockTime();
    Map<String, Integer> tpCounts = new HashMap<>();
    tpCounts.put(topic, 1);
    tpCounts.put(topic2, 1);
    Cluster cluster = TestUtils.singletonCluster(tpCounts);
    Node node = cluster.nodes().get(0);
    Metadata metadata = new Metadata(0, Long.MAX_VALUE);
    metadata.update(cluster, Collections.<String>emptySet(), time.milliseconds());
    MockClient client = new MockClient(time, metadata);
    client.setNode(node);
    PartitionAssignor assignor = new RangeAssignor();
    final KafkaConsumer<String, String> consumer = newConsumer(time, client, metadata, assignor, rebalanceTimeoutMs, sessionTimeoutMs, heartbeatIntervalMs, true, autoCommitIntervalMs);
    // lookup coordinator
    client.prepareResponseFrom(new GroupCoordinatorResponse(Errors.NONE, node), node);
    Node coordinator = new Node(Integer.MAX_VALUE - node.id(), node.host(), node.port());
    // manual assignment
    consumer.assign(Arrays.asList(tp0));
    consumer.seekToBeginning(Arrays.asList(tp0));
    // fetch offset for one topic
    client.prepareResponseFrom(offsetResponse(Collections.singletonMap(tp0, 0L), Errors.NONE), coordinator);
    assertEquals(0, consumer.committed(tp0).offset());
    // verify that assignment immediately changes
    assertTrue(consumer.assignment().equals(Collections.singleton(tp0)));
    // there shouldn't be any need to lookup the coordinator or fetch committed offsets.
    // we just lookup the starting position and send the record fetch.
    client.prepareResponse(listOffsetsResponse(Collections.singletonMap(tp0, 10L), Errors.NONE));
    client.prepareResponse(fetchResponse(tp0, 10L, 1));
    ConsumerRecords<String, String> records = consumer.poll(0);
    assertEquals(1, records.count());
    assertEquals(11L, consumer.position(tp0));
    // mock the offset commit response for to be revoked partitions
    AtomicBoolean commitReceived = prepareOffsetCommitResponse(client, coordinator, tp0, 11);
    // new manual assignment
    consumer.assign(Arrays.asList(t2p0));
    // verify that assignment immediately changes
    assertTrue(consumer.assignment().equals(Collections.singleton(t2p0)));
    // verify that the offset commits occurred as expected
    assertTrue(commitReceived.get());
    client.requests().clear();
    consumer.close();
}

Example 3 with GroupCoordinatorResponse

use of org.apache.kafka.common.requests.GroupCoordinatorResponse in project kafka by apache.

the class KafkaConsumerTest method testOffsetOfPausedPartitions.

@Test
public void testOffsetOfPausedPartitions() {
    int rebalanceTimeoutMs = 60000;
    int sessionTimeoutMs = 30000;
    int heartbeatIntervalMs = 3000;
    int autoCommitIntervalMs = 1000;
    Time time = new MockTime();
    Cluster cluster = TestUtils.singletonCluster(topic, 2);
    Node node = cluster.nodes().get(0);
    Metadata metadata = new Metadata(0, Long.MAX_VALUE);
    metadata.update(cluster, Collections.<String>emptySet(), time.milliseconds());
    MockClient client = new MockClient(time, metadata);
    client.setNode(node);
    PartitionAssignor assignor = new RangeAssignor();
    final KafkaConsumer<String, String> consumer = newConsumer(time, client, metadata, assignor, rebalanceTimeoutMs, sessionTimeoutMs, heartbeatIntervalMs, true, autoCommitIntervalMs);
    // lookup coordinator
    client.prepareResponseFrom(new GroupCoordinatorResponse(Errors.NONE, node), node);
    Node coordinator = new Node(Integer.MAX_VALUE - node.id(), node.host(), node.port());
    // manual assignment
    Set<TopicPartition> partitions = Utils.mkSet(tp0, tp1);
    consumer.assign(partitions);
    // verify consumer's assignment
    assertTrue(consumer.assignment().equals(partitions));
    consumer.pause(partitions);
    consumer.seekToEnd(partitions);
    // fetch and verify committed offset of two partitions
    Map<TopicPartition, Long> offsets = new HashMap<>();
    offsets.put(tp0, 0L);
    offsets.put(tp1, 0L);
    client.prepareResponseFrom(offsetResponse(offsets, Errors.NONE), coordinator);
    assertEquals(0, consumer.committed(tp0).offset());
    assertEquals(0, consumer.committed(tp1).offset());
    // fetch and verify consumer's position in the two partitions
    client.prepareResponse(listOffsetsResponse(Collections.singletonMap(tp0, 3L), Errors.NONE));
    client.prepareResponse(listOffsetsResponse(Collections.singletonMap(tp1, 3L), Errors.NONE));
    assertEquals(3L, consumer.position(tp0));
    assertEquals(3L, consumer.position(tp1));
    client.requests().clear();
    consumer.unsubscribe();
    consumer.close();
}

Example 4 with GroupCoordinatorResponse

use of org.apache.kafka.common.requests.GroupCoordinatorResponse in project kafka by apache.

the class KafkaConsumerTest method prepareRebalance.

private Node prepareRebalance(MockClient client, Node node, PartitionAssignor assignor, List<TopicPartition> partitions, Node coordinator) {
    if (coordinator == null) {
        // lookup coordinator
        client.prepareResponseFrom(new GroupCoordinatorResponse(Errors.NONE, node), node);
        coordinator = new Node(Integer.MAX_VALUE - node.id(), node.host(), node.port());
    }
    // join group
    client.prepareResponseFrom(joinGroupFollowerResponse(assignor, 1, "memberId", "leaderId", Errors.NONE), coordinator);
    // sync group
    client.prepareResponseFrom(syncGroupResponse(partitions, Errors.NONE), coordinator);
    return coordinator;
}

Example 5 with GroupCoordinatorResponse

use of org.apache.kafka.common.requests.GroupCoordinatorResponse in project kafka by apache.

the class KafkaConsumerTest method prepareRebalance.

private Node prepareRebalance(MockClient client, Node node, final Set<String> subscribedTopics, PartitionAssignor assignor, List<TopicPartition> partitions, Node coordinator) {
    if (coordinator == null) {
        // lookup coordinator
        client.prepareResponseFrom(new GroupCoordinatorResponse(Errors.NONE, node), node);
        coordinator = new Node(Integer.MAX_VALUE - node.id(), node.host(), node.port());
    }
    // join group
    client.prepareResponseFrom(new MockClient.RequestMatcher() {

        @Override
        public boolean matches(AbstractRequest body) {
            JoinGroupRequest joinGroupRequest = (JoinGroupRequest) body;
            PartitionAssignor.Subscription subscription = ConsumerProtocol.deserializeSubscription(joinGroupRequest.groupProtocols().get(0).metadata());
            return subscribedTopics.equals(new HashSet<>(subscription.topics()));
        }
    }, joinGroupFollowerResponse(assignor, 1, "memberId", "leaderId", Errors.NONE), coordinator);
    // sync group
    client.prepareResponseFrom(syncGroupResponse(partitions, Errors.NONE), coordinator);
    return coordinator;
}