Chia-Ping Tsai created KAFKA-17017: -------------------------------------- Summary: AsyncConsumer#unsubscribe does not clean the assigned partitions Key: KAFKA-17017 URL: https://issues.apache.org/jira/browse/KAFKA-17017 Project: Kafka Issue Type: Bug Reporter: Chia-Ping Tsai Assignee: Chia-Ping Tsai
According to docs [0] `Consumer#unsubscribe` should clean both subscribed and assigned partitions. However, there are two issues about `AsyncConsumer` 1) if we don't set group id, `AsyncConsumer#unsubscribe`[1] will be no-op 2) if we set group id, `AsyncConsumer` is always in `UNSUBSCRIBED` state and so `MembershipManagerImpl#leaveGroup` will be no-op [0] https://github.com/apache/kafka/blob/trunk/clients/src/main/java/org/apache/kafka/clients/consumer/KafkaConsumer.java#L759 [1] https://github.com/apache/kafka/blob/trunk/clients/src/main/java/org/apache/kafka/clients/consumer/internals/AsyncKafkaConsumer.java#L1479 [2] https://github.com/apache/kafka/blob/trunk/clients/src/main/java/org/apache/kafka/clients/consumer/internals/MembershipManagerImpl.java#L666 -- This message was sent by Atlassian Jira (v8.20.10#820010)