Error sending fetch request (sessionId=INVALID, epoch=INITIAL) to node 1001: org.apache.kafka.common.errors.DisconnectException

Question

I am using spring kafka and facing some errors

Error sending fetch request (sessionId=INVALID, epoch=INITIAL) to node 1001: org.apache.kafka.common.errors.DisconnectException.

my consumer producer code is given

` @EnableKafka @Configuration public class KafkaConfig {

    @Value(value = "${spring.kafka.consumer.bootstrap-servers}")
    private String bootstrapAddress;

    @Value(value = "${spring.kafka.consumer.registry-server}")
    private String registryAddress;

    @Value(value = "${spring.kafka.consumer.group-id}")
    private String groupId;

    @Bean
    public ConsumerFactory<String, GenericRecord> consumerFactory() {
        final Map<String, Object> props = new HashMap<>();
        props.put(ConsumerConfig.BOOTSTRAP_SERVERS_CONFIG, bootstrapAddress);
        props.put(AbstractKafkaAvroSerDeConfig.SCHEMA_REGISTRY_URL_CONFIG, registryAddress);
        props.put(ConsumerConfig.GROUP_ID_CONFIG, groupId);
        props.put(ConsumerConfig.FETCH_MAX_WAIT_MS_CONFIG, 600000);
        props.put(ConsumerConfig.REQUEST_TIMEOUT_MS_CONFIG, 600000);


        final AvroSerde avroSerde = new AvroSerde();
        avroSerde.configure(props, false);

        props.put(ConsumerConfig.KEY_DESERIALIZER_CLASS_CONFIG, StringDeserializer.class);
        props.put(ConsumerConfig.VALUE_DESERIALIZER_CLASS_CONFIG, avroSerde.deserializer().getClass());
        return new DefaultKafkaConsumerFactory<>(props, new StringDeserializer(), avroSerde.deserializer());
    }

    @Bean
    @ConditionalOnMissingBean(name = "kafkaListenerContainerFactory")
    public ConcurrentKafkaListenerContainerFactory<String, GenericRecord> kafkaListenerContainerFactory() {

        final ConcurrentKafkaListenerContainerFactory<String, GenericRecord> factory =
            new ConcurrentKafkaListenerContainerFactory<>();
        factory.setConsumerFactory(consumerFactory());
        factory.setConcurrency(1);
        return factory;
    }

    @Bean
    KafkaTemplate<String, AlertEvent> kafkaTemplate() {
        return new KafkaTemplate<>(producerFactory());
    }

    @Bean
    public ProducerFactory<String, AlertEvent> producerFactory() {
        Map<String, Object> config = new HashMap<>();
        config.put(ProducerConfig.BOOTSTRAP_SERVERS_CONFIG, bootstrapAddress);
        config.put(ProducerConfig.KEY_SERIALIZER_CLASS_CONFIG, StringSerializer.class);
        config.put(ProducerConfig.VALUE_SERIALIZER_CLASS_CONFIG, getAlertGsonEncoder().getClass());

        return new DefaultKafkaProducerFactory(config);
    }

    private static GsonEncoder<AlertEvent> getAlertGsonEncoder() {
        final GsonEncoder<AlertEvent> valueSerializer = new GsonEncoder<>();
        valueSerializer.configure(Collections.singletonMap(GsonEncoder.INSERT_SCHEMA_CONFIG, false), false);
        return valueSerializer;
    }

}

`

I am getting the error and not able to understand why, Please help. The configuration is given below.

`

auto.commit.interval.ms = 5000,
auto.offset.reset = latest,
check.crcs = true,
bootstrap.servers = [kafka:9092],
client.dns.lookup = default,
default.api.timeout.ms = 60000,
connections.max.idle.ms = 540000,
client.id = ,
exclude.internal.topics = true,
enable.auto.commit = true,
fetch.max.bytes = 52428800,
fetch.max.wait.ms = 600000,
fetch.min.bytes = 1,
group.id = iot-brazilian-alert-hb03,
interceptor.classes = [],
heartbeat.interval.ms = 3000,
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,
metadata.max.age.ms = 300000,
max.poll.records = 500,
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],
reconnect.backoff.max.ms = 1000,
receive.buffer.bytes = 65536,
reconnect.backoff.ms = 50,
request.timeout.ms = 600000,
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,
send.buffer.bytes = 131072,
ssl.cipher.suites = null,
session.timeout.ms = 10000,
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 com.blupa.iot.kafka.encoder.AvroWrapper

`

not sure what I am doing wrongly. I am using org.apache.avro:1:8:2 and io.confluent.kafka-avro-serializer:3.2.1

Solution

As @Ahmad Abdelghany comment says, settings org.apache.kafka logs to DEBUG shows:

DEBUG org.apache.kafka.clients.NetworkClient - Disconnecting from node 1 due to request timeout.
DEBUG org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient - Cancelled request with header RequestHeader(apiKey=FETCH, apiVersion=11, clientId=consumer-1, correlationId=183) due to node 1 being disconnected
DEBUG org.apache.kafka.clients.NetworkClient - Give up sending metadata request since no node is available
INFO org.apache.kafka.clients.FetchSessionHandler - Error sending fetch request (sessionId=INVALID, epoch=INITIAL) to node 1: {}.
org.apache.kafka.common.errors.DisconnectException: null
DEBUG org.apache.kafka.clients.NetworkClient - Give up sending metadata request since no node is available

The important bit being:

due to request timeout

You can increase request.timeout.ms (default 30000) with

props.put(ConsumerConfig.REQUEST_TIMEOUT_MS_CONFIG, "60000");

Note: your case should be different since your timeout is set to 10 minutes. Displaying debug logs should help.