Examples with MockTime org.apache.kafka.common.utils.MockTime used on opensource projects

Example 31 with MockTime

use of org.apache.kafka.common.utils.MockTime in project apache-kafka-on-k8s by banzaicloud.

the class KafkaConsumerTest method verifyNoCoordinatorLookupForManualAssignmentWithSeek.

@Test
public void verifyNoCoordinatorLookupForManualAssignmentWithSeek() {
    Time time = new MockTime();
    Cluster cluster = TestUtils.singletonCluster(topic, 1);
    Node node = cluster.nodes().get(0);
    Metadata metadata = createMetadata();
    metadata.update(cluster, Collections.<String>emptySet(), time.milliseconds());
    MockClient client = new MockClient(time, metadata);
    client.setNode(node);
    PartitionAssignor assignor = new RoundRobinAssignor();
    KafkaConsumer<String, String> consumer = newConsumer(time, client, metadata, assignor, true);
    consumer.assign(singleton(tp0));
    consumer.seekToBeginning(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, 50L)));
    client.prepareResponse(fetchResponse(tp0, 50L, 5));
    ConsumerRecords<String, String> records = consumer.poll(5);
    assertEquals(5, records.count());
    assertEquals(55L, consumer.position(tp0));
    consumer.close(0, TimeUnit.MILLISECONDS);
}

Example 32 with MockTime

use of org.apache.kafka.common.utils.MockTime in project apache-kafka-on-k8s by banzaicloud.

the class KafkaConsumerTest method testManualAssignmentChangeWithAutoCommitEnabled.

@Test
public void testManualAssignmentChangeWithAutoCommitEnabled() {
    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 = createMetadata();
    metadata.update(cluster, Collections.<String>emptySet(), time.milliseconds());
    MockClient client = new MockClient(time, metadata);
    client.setNode(node);
    PartitionAssignor assignor = new RangeAssignor();
    KafkaConsumer<String, String> consumer = newConsumer(time, client, metadata, assignor, true);
    // lookup coordinator
    client.prepareResponseFrom(new FindCoordinatorResponse(Errors.NONE, node), node);
    Node coordinator = new Node(Integer.MAX_VALUE - node.id(), node.host(), node.port());
    // manual assignment
    consumer.assign(singleton(tp0));
    consumer.seekToBeginning(singleton(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(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)));
    client.prepareResponse(fetchResponse(tp0, 10L, 1));
    ConsumerRecords<String, String> records = consumer.poll(5);
    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(singleton(t2p0));
    // verify that assignment immediately changes
    assertTrue(consumer.assignment().equals(singleton(t2p0)));
    // verify that the offset commits occurred as expected
    assertTrue(commitReceived.get());
    client.requests().clear();
    consumer.close();
}

Example 33 with MockTime

use of org.apache.kafka.common.utils.MockTime in project apache-kafka-on-k8s by banzaicloud.

the class KafkaConsumerTest method testChangingRegexSubscription.

@Test
public void testChangingRegexSubscription() {
    PartitionAssignor assignor = new RoundRobinAssignor();
    String otherTopic = "other";
    TopicPartition otherTopicPartition = new TopicPartition(otherTopic, 0);
    Time time = new MockTime();
    Map<String, Integer> topicMetadata = new HashMap<>();
    topicMetadata.put(topic, 1);
    topicMetadata.put(otherTopic, 1);
    Cluster cluster = TestUtils.clusterWith(1, topicMetadata);
    Metadata metadata = createMetadata();
    Node node = cluster.nodes().get(0);
    MockClient client = new MockClient(time, metadata);
    client.setNode(node);
    client.cluster(cluster);
    metadata.update(cluster, Collections.<String>emptySet(), time.milliseconds());
    KafkaConsumer<String, String> consumer = newConsumer(time, client, metadata, assignor, false);
    Node coordinator = prepareRebalance(client, node, singleton(topic), assignor, singletonList(tp0), null);
    consumer.subscribe(Pattern.compile(topic), getConsumerRebalanceListener(consumer));
    consumer.poll(0);
    assertEquals(singleton(topic), consumer.subscription());
    consumer.subscribe(Pattern.compile(otherTopic), getConsumerRebalanceListener(consumer));
    prepareRebalance(client, node, singleton(otherTopic), assignor, singletonList(otherTopicPartition), coordinator);
    consumer.poll(0);
    assertEquals(singleton(otherTopic), consumer.subscription());
    consumer.close(0, TimeUnit.MILLISECONDS);
}

Example 34 with MockTime

use of org.apache.kafka.common.utils.MockTime in project apache-kafka-on-k8s by banzaicloud.

the class KafkaConsumerTest method consumerCloseTest.

private void consumerCloseTest(final long closeTimeoutMs, List<? extends AbstractResponse> responses, long waitMs, boolean interrupt) throws Exception {
    Time time = new MockTime();
    Cluster cluster = TestUtils.singletonCluster(topic, 1);
    Node node = cluster.nodes().get(0);
    Metadata metadata = createMetadata();
    metadata.update(cluster, Collections.<String>emptySet(), time.milliseconds());
    MockClient client = new MockClient(time, metadata);
    client.setNode(node);
    PartitionAssignor assignor = new RoundRobinAssignor();
    final KafkaConsumer<String, String> consumer = newConsumer(time, client, metadata, assignor, false);
    consumer.subscribe(singleton(topic), getConsumerRebalanceListener(consumer));
    Node coordinator = prepareRebalance(client, node, assignor, singletonList(tp0), null);
    client.prepareMetadataUpdate(cluster, Collections.<String>emptySet());
    // Poll with responses
    client.prepareResponseFrom(fetchResponse(tp0, 0, 1), node);
    client.prepareResponseFrom(fetchResponse(tp0, 1, 0), node);
    consumer.poll(0);
    // Initiate close() after a commit request on another thread.
    // Kafka consumer is single-threaded, but the implementation allows calls on a
    // different thread as long as the calls are not executed concurrently. So this is safe.
    ExecutorService executor = Executors.newSingleThreadExecutor();
    final AtomicReference<Exception> closeException = new AtomicReference<>();
    try {
        Future<?> future = executor.submit(new Runnable() {

            @Override
            public void run() {
                consumer.commitAsync();
                try {
                    consumer.close(closeTimeoutMs, TimeUnit.MILLISECONDS);
                } catch (Exception e) {
                    closeException.set(e);
                }
            }
        });
        // if close timeout is not zero.
        try {
            future.get(100, TimeUnit.MILLISECONDS);
            if (closeTimeoutMs != 0)
                fail("Close completed without waiting for commit or leave response");
        } catch (TimeoutException e) {
        // Expected exception
        }
        // Ensure close has started and queued at least one more request after commitAsync
        client.waitForRequests(2, 1000);
        // In non-graceful mode, close() times out without an exception even though commit response is pending
        for (int i = 0; i < responses.size(); i++) {
            client.waitForRequests(1, 1000);
            client.respondFrom(responses.get(i), coordinator);
            if (i != responses.size() - 1) {
                try {
                    future.get(100, TimeUnit.MILLISECONDS);
                    fail("Close completed without waiting for response");
                } catch (TimeoutException e) {
                // Expected exception
                }
            }
        }
        if (waitMs > 0)
            time.sleep(waitMs);
        if (interrupt) {
            assertTrue("Close terminated prematurely", future.cancel(true));
            TestUtils.waitForCondition(new TestCondition() {

                @Override
                public boolean conditionMet() {
                    return closeException.get() != null;
                }
            }, "InterruptException did not occur within timeout.");
            assertTrue("Expected exception not thrown " + closeException, closeException.get() instanceof InterruptException);
        } else {
            // Should succeed without TimeoutException or ExecutionException
            future.get(500, TimeUnit.MILLISECONDS);
            assertNull("Unexpected exception during close", closeException.get());
        }
    } finally {
        executor.shutdownNow();
    }
}

Example 35 with MockTime

use of org.apache.kafka.common.utils.MockTime in project apache-kafka-on-k8s by banzaicloud.

the class KafkaConsumerTest method testConsumerWithinBlackoutPeriodAfterAuthenticationFailure.

@Test
public void testConsumerWithinBlackoutPeriodAfterAuthenticationFailure() {
    Time time = new MockTime();
    Map<String, Integer> tpCounts = new HashMap<>();
    tpCounts.put(topic, 1);
    Cluster cluster = TestUtils.singletonCluster(tpCounts);
    Node node = cluster.nodes().get(0);
    Metadata metadata = createMetadata();
    metadata.update(cluster, Collections.<String>emptySet(), time.milliseconds());
    MockClient client = new MockClient(time, metadata);
    client.setNode(node);
    client.authenticationFailed(node, 300);
    PartitionAssignor assignor = new RangeAssignor();
    final KafkaConsumer<String, String> consumer = newConsumer(time, client, metadata, assignor, true);
    consumer.subscribe(Collections.singleton(topic));
    callConsumerApisAndExpectAnAuthenticationError(consumer, tp0);
    // wait less than the blackout period
    time.sleep(30);
    assertTrue(client.connectionFailed(node));
    callConsumerApisAndExpectAnAuthenticationError(consumer, tp0);
    client.requests().clear();
    consumer.close(0, TimeUnit.MILLISECONDS);
}