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

Example 71 with MetadataResponse

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

the class MetadataTest method testStaleMetadata.

@Test
public void testStaleMetadata() {
    TopicPartition tp = new TopicPartition("topic", 0);
    MetadataResponsePartition partitionMetadata = new MetadataResponsePartition().setPartitionIndex(tp.partition()).setLeaderId(1).setLeaderEpoch(10).setReplicaNodes(Arrays.asList(1, 2, 3)).setIsrNodes(Arrays.asList(1, 2, 3)).setOfflineReplicas(Collections.emptyList()).setErrorCode(Errors.NONE.code());
    MetadataResponseTopic topicMetadata = new MetadataResponseTopic().setName(tp.topic()).setErrorCode(Errors.NONE.code()).setPartitions(Collections.singletonList(partitionMetadata)).setIsInternal(false);
    MetadataResponseTopicCollection topics = new MetadataResponseTopicCollection();
    topics.add(topicMetadata);
    MetadataResponseData data = new MetadataResponseData().setClusterId("clusterId").setControllerId(0).setTopics(topics).setBrokers(new MetadataResponseBrokerCollection());
    metadata.updateWithCurrentRequestVersion(new MetadataResponse(data, ApiKeys.METADATA.latestVersion()), false, 100);
    // Older epoch with changed ISR should be ignored
    partitionMetadata.setPartitionIndex(tp.partition()).setLeaderId(1).setLeaderEpoch(9).setReplicaNodes(Arrays.asList(1, 2, 3)).setIsrNodes(Arrays.asList(1, 2)).setOfflineReplicas(Collections.emptyList()).setErrorCode(Errors.NONE.code());
    metadata.updateWithCurrentRequestVersion(new MetadataResponse(data, ApiKeys.METADATA.latestVersion()), false, 101);
    assertEquals(Optional.of(10), metadata.lastSeenLeaderEpoch(tp));
    assertTrue(metadata.partitionMetadataIfCurrent(tp).isPresent());
    MetadataResponse.PartitionMetadata responseMetadata = this.metadata.partitionMetadataIfCurrent(tp).get();
    assertEquals(Arrays.asList(1, 2, 3), responseMetadata.inSyncReplicaIds);
    assertEquals(Optional.of(10), responseMetadata.leaderEpoch);
}

Example 72 with MetadataResponse

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

the class MetadataTest method testLeaderMetadataInconsistentWithBrokerMetadata.

@Test
public void testLeaderMetadataInconsistentWithBrokerMetadata() {
    // Tests a reordering scenario which can lead to inconsistent leader state.
    // A partition initially has one broker offline. That broker comes online and
    // is elected leader. The client sees these two events in the opposite order.
    TopicPartition tp = new TopicPartition("topic", 0);
    Node node0 = new Node(0, "localhost", 9092);
    Node node1 = new Node(1, "localhost", 9093);
    Node node2 = new Node(2, "localhost", 9094);
    // The first metadata received by broker (epoch=10)
    MetadataResponsePartition firstPartitionMetadata = new MetadataResponsePartition().setPartitionIndex(tp.partition()).setErrorCode(Errors.NONE.code()).setLeaderEpoch(10).setLeaderId(0).setReplicaNodes(Arrays.asList(0, 1, 2)).setIsrNodes(Arrays.asList(0, 1, 2)).setOfflineReplicas(Collections.emptyList());
    // The second metadata received has stale metadata (epoch=8)
    MetadataResponsePartition secondPartitionMetadata = new MetadataResponsePartition().setPartitionIndex(tp.partition()).setErrorCode(Errors.NONE.code()).setLeaderEpoch(8).setLeaderId(1).setReplicaNodes(Arrays.asList(0, 1, 2)).setIsrNodes(Arrays.asList(1, 2)).setOfflineReplicas(Collections.singletonList(0));
    metadata.updateWithCurrentRequestVersion(new MetadataResponse(new MetadataResponseData().setTopics(buildTopicCollection(tp.topic(), firstPartitionMetadata)).setBrokers(buildBrokerCollection(Arrays.asList(node0, node1, node2))), ApiKeys.METADATA.latestVersion()), false, 10L);
    metadata.updateWithCurrentRequestVersion(new MetadataResponse(new MetadataResponseData().setTopics(buildTopicCollection(tp.topic(), secondPartitionMetadata)).setBrokers(buildBrokerCollection(Arrays.asList(node1, node2))), ApiKeys.METADATA.latestVersion()), false, 20L);
    assertNull(metadata.fetch().leaderFor(tp));
    assertEquals(Optional.of(10), metadata.lastSeenLeaderEpoch(tp));
    assertFalse(metadata.currentLeader(tp).leader.isPresent());
}

Example 73 with MetadataResponse

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

the class KafkaAdminClientTest method testListPartitionReassignments.

@Test
public void testListPartitionReassignments() throws Exception {
    try (AdminClientUnitTestEnv env = mockClientEnv()) {
        env.kafkaClient().setNodeApiVersions(NodeApiVersions.create());
        TopicPartition tp1 = new TopicPartition("A", 0);
        OngoingPartitionReassignment tp1PartitionReassignment = new OngoingPartitionReassignment().setPartitionIndex(0).setRemovingReplicas(Arrays.asList(1, 2, 3)).setAddingReplicas(Arrays.asList(4, 5, 6)).setReplicas(Arrays.asList(1, 2, 3, 4, 5, 6));
        OngoingTopicReassignment tp1Reassignment = new OngoingTopicReassignment().setName("A").setPartitions(Collections.singletonList(tp1PartitionReassignment));
        TopicPartition tp2 = new TopicPartition("B", 0);
        OngoingPartitionReassignment tp2PartitionReassignment = new OngoingPartitionReassignment().setPartitionIndex(0).setRemovingReplicas(Arrays.asList(1, 2, 3)).setAddingReplicas(Arrays.asList(4, 5, 6)).setReplicas(Arrays.asList(1, 2, 3, 4, 5, 6));
        OngoingTopicReassignment tp2Reassignment = new OngoingTopicReassignment().setName("B").setPartitions(Collections.singletonList(tp2PartitionReassignment));
        // 1. NOT_CONTROLLER error handling
        ListPartitionReassignmentsResponseData notControllerData = new ListPartitionReassignmentsResponseData().setErrorCode(Errors.NOT_CONTROLLER.code()).setErrorMessage(Errors.NOT_CONTROLLER.message());
        MetadataResponse controllerNodeResponse = RequestTestUtils.metadataResponse(env.cluster().nodes(), env.cluster().clusterResource().clusterId(), 1, Collections.emptyList());
        ListPartitionReassignmentsResponseData reassignmentsData = new ListPartitionReassignmentsResponseData().setTopics(Arrays.asList(tp1Reassignment, tp2Reassignment));
        env.kafkaClient().prepareResponse(new ListPartitionReassignmentsResponse(notControllerData));
        env.kafkaClient().prepareResponse(controllerNodeResponse);
        env.kafkaClient().prepareResponse(new ListPartitionReassignmentsResponse(reassignmentsData));
        ListPartitionReassignmentsResult noControllerResult = env.adminClient().listPartitionReassignments();
        // no error
        noControllerResult.reassignments().get();
        // 2. UNKNOWN_TOPIC_OR_EXCEPTION_ERROR
        ListPartitionReassignmentsResponseData unknownTpData = new ListPartitionReassignmentsResponseData().setErrorCode(Errors.UNKNOWN_TOPIC_OR_PARTITION.code()).setErrorMessage(Errors.UNKNOWN_TOPIC_OR_PARTITION.message());
        env.kafkaClient().prepareResponse(new ListPartitionReassignmentsResponse(unknownTpData));
        ListPartitionReassignmentsResult unknownTpResult = env.adminClient().listPartitionReassignments(new HashSet<>(Arrays.asList(tp1, tp2)));
        TestUtils.assertFutureError(unknownTpResult.reassignments(), UnknownTopicOrPartitionException.class);
        // 3. Success
        ListPartitionReassignmentsResponseData responseData = new ListPartitionReassignmentsResponseData().setTopics(Arrays.asList(tp1Reassignment, tp2Reassignment));
        env.kafkaClient().prepareResponse(new ListPartitionReassignmentsResponse(responseData));
        ListPartitionReassignmentsResult responseResult = env.adminClient().listPartitionReassignments();
        Map<TopicPartition, PartitionReassignment> reassignments = responseResult.reassignments().get();
        PartitionReassignment tp1Result = reassignments.get(tp1);
        assertEquals(tp1PartitionReassignment.addingReplicas(), tp1Result.addingReplicas());
        assertEquals(tp1PartitionReassignment.removingReplicas(), tp1Result.removingReplicas());
        assertEquals(tp1PartitionReassignment.replicas(), tp1Result.replicas());
        assertEquals(tp1PartitionReassignment.replicas(), tp1Result.replicas());
        PartitionReassignment tp2Result = reassignments.get(tp2);
        assertEquals(tp2PartitionReassignment.addingReplicas(), tp2Result.addingReplicas());
        assertEquals(tp2PartitionReassignment.removingReplicas(), tp2Result.removingReplicas());
        assertEquals(tp2PartitionReassignment.replicas(), tp2Result.replicas());
        assertEquals(tp2PartitionReassignment.replicas(), tp2Result.replicas());
    }
}

Example 74 with MetadataResponse

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

the class KafkaAdminClientTest method testListTransactions.

@Test
public void testListTransactions() throws Exception {
    try (AdminClientUnitTestEnv env = mockClientEnv()) {
        MetadataResponseData.MetadataResponseBrokerCollection brokers = new MetadataResponseData.MetadataResponseBrokerCollection();
        env.cluster().nodes().forEach(node -> {
            brokers.add(new MetadataResponseData.MetadataResponseBroker().setHost(node.host()).setNodeId(node.id()).setPort(node.port()).setRack(node.rack()));
        });
        env.kafkaClient().prepareResponse(request -> request instanceof MetadataRequest, new MetadataResponse(new MetadataResponseData().setBrokers(brokers), MetadataResponseData.HIGHEST_SUPPORTED_VERSION));
        List<TransactionListing> expected = Arrays.asList(new TransactionListing("foo", 12345L, TransactionState.ONGOING), new TransactionListing("bar", 98765L, TransactionState.PREPARE_ABORT), new TransactionListing("baz", 13579L, TransactionState.COMPLETE_COMMIT));
        assertEquals(Utils.mkSet(0, 1, 2), env.cluster().nodes().stream().map(Node::id).collect(Collectors.toSet()));
        env.cluster().nodes().forEach(node -> {
            ListTransactionsResponseData response = new ListTransactionsResponseData().setErrorCode(Errors.NONE.code());
            TransactionListing listing = expected.get(node.id());
            response.transactionStates().add(new ListTransactionsResponseData.TransactionState().setTransactionalId(listing.transactionalId()).setProducerId(listing.producerId()).setTransactionState(listing.state().toString()));
            env.kafkaClient().prepareResponseFrom(request -> request instanceof ListTransactionsRequest, new ListTransactionsResponse(response), node);
        });
        ListTransactionsResult result = env.adminClient().listTransactions();
        assertEquals(new HashSet<>(expected), new HashSet<>(result.all().get()));
    }
}

Example 75 with MetadataResponse

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

the class MetadataTest method testNoEpoch.

@Test
public void testNoEpoch() {
    metadata.updateWithCurrentRequestVersion(emptyMetadataResponse(), false, 0L);
    MetadataResponse metadataResponse = RequestTestUtils.metadataUpdateWith("dummy", 1, Collections.emptyMap(), Collections.singletonMap("topic-1", 1));
    metadata.updateWithCurrentRequestVersion(metadataResponse, false, 10L);
    TopicPartition tp = new TopicPartition("topic-1", 0);
    // no epoch
    assertFalse(metadata.lastSeenLeaderEpoch(tp).isPresent());
    // still works
    assertTrue(metadata.partitionMetadataIfCurrent(tp).isPresent());
    assertEquals(0, metadata.partitionMetadataIfCurrent(tp).get().partition());
    assertEquals(Optional.of(0), metadata.partitionMetadataIfCurrent(tp).get().leaderId);
    // Since epoch was null, this shouldn't update it
    metadata.updateLastSeenEpochIfNewer(tp, 10);
    assertTrue(metadata.partitionMetadataIfCurrent(tp).isPresent());
    assertFalse(metadata.partitionMetadataIfCurrent(tp).get().leaderEpoch.isPresent());
}