sijie opened a new issue #3293: [IO] [Kafka] Heartbeat must be set lower than the session timeout URL: https://github.com/apache/pulsar/issues/3293 #### Expected behavior Kafka source connector should be able to run when changing session timeout ms to be less than 10s #### Actual behavior localrun throws exception. ``` Exception in thread "Kafka Source Thread" org.apache.kafka.common.KafkaException: Failed to construct kafka consumer at org.apache.kafka.clients.consumer.KafkaConsumer.<init>(KafkaConsumer.java:717) at org.apache.kafka.clients.consumer.KafkaConsumer.<init>(KafkaConsumer.java:597) at org.apache.kafka.clients.consumer.KafkaConsumer.<init>(KafkaConsumer.java:579) at org.apache.pulsar.io.kafka.KafkaAbstractSource.lambda$start$0(KafkaAbstractSource.java:103) at java.lang.Thread.run(Thread.java:748) Caused by: java.lang.IllegalArgumentException: Heartbeat must be set lower than the session timeout at org.apache.kafka.clients.consumer.internals.Heartbeat.<init>(Heartbeat.java:35) at org.apache.kafka.clients.consumer.internals.AbstractCoordinator.<init>(AbstractCoordinator.java:135) at org.apache.kafka.clients.consumer.internals.ConsumerCoordinator.<init>(ConsumerCoordinator.java:108) at org.apache.kafka.clients.consumer.KafkaConsumer.<init>(KafkaConsumer.java:676) ... 4 more ``` #### Steps to reproduce 1. Prepare a kafka yaml file and make sure `sessionTimeoutMs` to be less than 10s. ``` configs: bootstrapServers: "127.0.0.1:9092" groupId: "pulsarUTset" topic: "test_kafka_topic" fetchMinBytes: 1 autoCommitEnabled: "true" autoCommitIntervalMs: 1000 sessionTimeoutMs: 3000 ``` 2. Start pulsar standalone 3. Localrun a Kafka source connector ``` bin/pulsar-admin source localrun --source-config-file kafka.yaml -t kafka --destination-topic-name dest_topic --name kafka_fn ``` #### System configuration **Pulsar version**: any released version and master
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