Hello Kafka Team, I just cannot get my registered "ConsumerRebalanceListener" to be invoked.
GitHub Commit for a full picture if that helps: https://github.com/slydogshah/appGalCloud/commit/323a447929a17d8449b931a2972a746251dce495 Here is my KafkaConsumer bootstrap code ---- Properties config = new Properties(); config.put("client.id", InetAddress.getLocalHost().getHostName()); config.put("group.id", "foodRunnerSyncProtocol_notifications"); config.put("bootstrap.servers", "localhost:9092"); config.put("key.deserializer", org.apache.kafka.common.serialization.StringDeserializer.class); config.put("value.deserializer", org.springframework.kafka.support.serializer.JsonDeserializer.class); config.put("key.serializer", org.apache.kafka.common.serialization.StringSerializer.class); config.put("value.serializer", org.springframework.kafka.support.serializer.JsonSerializer.class); //config.put("session.timeout.ms", 30000); this.kafkaConsumer = new KafkaConsumer<String, String>(config); KafkaRebalanceListener rebalanceListener = new KafkaRebalanceListener(this.topicPartitions); this.kafkaConsumer.subscribe(topics, rebalanceListener); public class KafkaRebalanceListener implements ConsumerRebalanceListener { private static Logger logger = LoggerFactory.getLogger(KafkaRebalanceListener.class); private Map<String,List<TopicPartition>> topicPartitions; public KafkaRebalanceListener(Map<String, List<TopicPartition>> topicPartitions) { this.topicPartitions = topicPartitions; } @Override public void onPartitionsRevoked(Collection<TopicPartition> collection) { logger.info("********PARTITIONS_REVOKED**********"); logger.info("************************************"); } @Override public void onPartitionsAssigned(Collection<TopicPartition> partitions) { List<TopicPartition> partitionList = Arrays.asList(partitions.toArray(new TopicPartition[0])); for (TopicPartition topicPartition : partitionList) { String registeredTopic = topicPartition.topic(); List<TopicPartition> local = topicPartitions.get(registeredTopic); if (local != null) { local.add(topicPartition); logger.info("******************************************"); logger.info("NUMBER_OF_PARTITIONS registered for :(" + registeredTopic + ") " + topicPartitions.size()); logger.info("******************************************"); } else { topicPartitions.put(registeredTopic, Arrays.asList(topicPartition)); } } } @Override public void onPartitionsLost(Collection<TopicPartition> partitions) { logger.info("********PARTITIONS_LOST**********"); logger.info("************************************"); } } and Logs 2020-02-19 11:26:48,387 INFO [io.app.clo.mes.KafkaDaemon] (main) ********** 2020-02-19 11:26:48,387 INFO [io.app.clo.mes.KafkaDaemon] (main) STARTING_KAFKA_DAEMON 2020-02-19 11:26:48,387 INFO [io.app.clo.mes.KafkaDaemon] (main) ********** 2020-02-19 11:26:53,408 INFO [org.apa.kaf.cli.con.ConsumerConfig] (ForkJoinPool.commonPool-worker-9) ConsumerConfig values: allow.auto.create.topics = true auto.commit.interval.ms = 5000 auto.offset.reset = latest bootstrap.servers = [localhost:9092] check.crcs = true client.dns.lookup = default client.id = Babys-MacBook-Pro.local client.rack = connections.max.idle.ms = 540000 default.api.timeout.ms = 60000 enable.auto.commit = true exclude.internal.topics = true fetch.max.bytes = 52428800 fetch.max.wait.ms = 500 fetch.min.bytes = 1 group.id = foodRunnerSyncProtocol_notifications group.instance.id = null heartbeat.interval.ms = 3000 interceptor.classes = [] internal.leave.group.on.close = true isolation.level = read_uncommitted key.deserializer = class org.apache.kafka.common.serialization.StringDeserializer max.partition.fetch.bytes = 1048576 max.poll.interval.ms = 300000 max.poll.records = 500 metadata.max.age.ms = 300000 metric.reporters = [] metrics.num.samples = 2 metrics.recording.level = INFO metrics.sample.window.ms = 30000 partition.assignment.strategy = [class org.apache.kafka.clients.consumer.RangeAssignor] receive.buffer.bytes = 65536 reconnect.backoff.max.ms = 1000 reconnect.backoff.ms = 50 request.timeout.ms = 30000 retry.backoff.ms = 100 sasl.client.callback.handler.class = null sasl.jaas.config = null sasl.kerberos.kinit.cmd = /usr/bin/kinit sasl.kerberos.min.time.before.relogin = 60000 sasl.kerberos.service.name = null sasl.kerberos.ticket.renew.jitter = 0.05 sasl.kerberos.ticket.renew.window.factor = 0.8 sasl.login.callback.handler.class = null sasl.login.class = null sasl.login.refresh.buffer.seconds = 300 sasl.login.refresh.min.period.seconds = 60 sasl.login.refresh.window.factor = 0.8 sasl.login.refresh.window.jitter = 0.05 sasl.mechanism = GSSAPI security.protocol = PLAINTEXT security.providers = null send.buffer.bytes = 131072 session.timeout.ms = 10000 ssl.cipher.suites = null ssl.enabled.protocols = [TLSv1.2, TLSv1.1, TLSv1] ssl.endpoint.identification.algorithm = https ssl.key.password = null ssl.keymanager.algorithm = SunX509 ssl.keystore.location = null ssl.keystore.password = null ssl.keystore.type = JKS ssl.protocol = TLS ssl.provider = null ssl.secure.random.implementation = null ssl.trustmanager.algorithm = PKIX ssl.truststore.location = null ssl.truststore.password = null ssl.truststore.type = JKS value.deserializer = class org.springframework.kafka.support.serializer.JsonDeserializer 2020-02-19 11:26:53,595 WARN [org.apa.kaf.cli.con.ConsumerConfig] (ForkJoinPool.commonPool-worker-9) The configuration 'value.serializer' was supplied but isn't a known config. 2020-02-19 11:26:53,595 WARN [org.apa.kaf.cli.con.ConsumerConfig] (ForkJoinPool.commonPool-worker-9) The configuration 'key.serializer' was supplied but isn't a known config. 2020-02-19 11:26:53,596 INFO [org.apa.kaf.com.uti.AppInfoParser] (ForkJoinPool.commonPool-worker-9) Kafka version: 2.4.0 2020-02-19 11:26:53,596 INFO [org.apa.kaf.com.uti.AppInfoParser] (ForkJoinPool.commonPool-worker-9) Kafka commitId: 77a89fcf8d7fa018 2020-02-19 11:26:53,597 INFO [org.apa.kaf.com.uti.AppInfoParser] (ForkJoinPool.commonPool-worker-9) Kafka startTimeMs: 1582133213595 2020-02-19 11:26:53,598 INFO [org.apa.kaf.cli.con.KafkaConsumer] (ForkJoinPool.commonPool-worker-9) [Consumer clientId=Babys-MacBook-Pro.local, groupId=foodRunnerSyncProtocol_notifications] Subscribed to topic(s): foodRunnerSyncProtocol_source_notification, foodRunnerSyncProtocol_destination_notification 2020-02-19 11:26:53,598 INFO [io.app.clo.mes.StartDaemonTask] (ForkJoinPool.commonPool-worker-9) Start Long Poll 2020-02-19 11:26:53,820 INFO [org.apa.kaf.cli.Metadata] (ForkJoinPool.commonPool-worker-9) [Consumer clientId=Babys-MacBook-Pro.local, groupId=foodRunnerSyncProtocol_notifications] Cluster ID: cdIh51BoQJ6asZfBNwp23Q 2020-02-19 11:26:53,821 INFO [org.apa.kaf.cli.con.int.AbstractCoordinator] (ForkJoinPool.commonPool-worker-9) [Consumer clientId=Babys-MacBook-Pro.local, groupId=foodRunnerSyncProtocol_notifications] Discovered group coordinator localhost:9092 (id: 2147483646 rack: null) 2020-02-19 11:26:53,825 INFO [org.apa.kaf.cli.con.int.AbstractCoordinator] (ForkJoinPool.commonPool-worker-9) [Consumer clientId=Babys-MacBook-Pro.local, groupId=foodRunnerSyncProtocol_notifications] (Re-)joining group 2020-02-19 11:26:53,838 INFO [org.apa.kaf.cli.con.int.AbstractCoordinator] (ForkJoinPool.commonPool-worker-9) [Consumer clientId=Babys-MacBook-Pro.local, groupId=foodRunnerSyncProtocol_notifications] (Re-)joining group 2020-02-19 11:26:53,851 INFO [org.apa.kaf.cli.con.int.ConsumerCoordinator] (ForkJoinPool.commonPool-worker-9) [Consumer clientId=Babys-MacBook-Pro.local, groupId=foodRunnerSyncProtocol_notifications] Finished assignment for group at generation 11: {Babys-MacBook-Pro.local-410e3f7c-6162-431c-9d00-7aa2c0cd9a39=org.apache.kafka.clients.consumer.ConsumerPartitionAssignor$Assignment@4dc3e2a0} 2020-02-19 11:26:53,856 INFO [org.apa.kaf.cli.con.int.AbstractCoordinator] (ForkJoinPool.commonPool-worker-9) [Consumer clientId=Babys-MacBook-Pro.local, groupId=foodRunnerSyncProtocol_notifications] Successfully joined group with generation 11 2020-02-19 11:26:53,860 INFO [org.apa.kaf.cli.con.int.ConsumerCoordinator] (ForkJoinPool.commonPool-worker-9) [Consumer clientId=Babys-MacBook-Pro.local, groupId=foodRunnerSyncProtocol_notifications] Adding newly assigned partitions: foodRunnerSyncProtocol_source_notification-0, foodRunnerSyncProtocol_destination_notification-0 2020-02-19 11:26:53,869 INFO [org.apa.kaf.cli.con.int.ConsumerCoordinator] (ForkJoinPool.commonPool-worker-9) [Consumer clientId=Babys-MacBook-Pro.local, groupId=foodRunnerSyncProtocol_notifications] Setting offset for partition foodRunnerSyncProtocol_source_notification-0 to the committed offset FetchPosition{offset=1967, offsetEpoch=Optional.empty, currentLeader=LeaderAndEpoch{leader=localhost:9092 (id: 1 rack: null), epoch=0}} 2020-02-19 11:26:53,871 INFO [org.apa.kaf.cli.con.int.ConsumerCoordinator] (ForkJoinPool.commonPool-worker-9) [Consumer clientId=Babys-MacBook-Pro.local, groupId=foodRunnerSyncProtocol_notifications] Setting offset for partition foodRunnerSyncProtocol_destination_notification-0 to the committed offset FetchPosition{offset=395, offsetEpoch=Optional.empty, currentLeader=LeaderAndEpoch{leader=localhost:9092 (id: 1 rack: null), epoch=0}} Any clues to try will be greatly appreciated. Thanks Sohil
