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Posted to jira@kafka.apache.org by "David Jacot (Jira)" <ji...@apache.org> on 2024/02/12 07:18:00 UTC

[jira] [Resolved] (KAFKA-16178) AsyncKafkaConsumer doesn't retry joining the group after rediscovering group coordinator

     [ https://issues.apache.org/jira/browse/KAFKA-16178?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

David Jacot resolved KAFKA-16178.
---------------------------------
    Resolution: Fixed

> AsyncKafkaConsumer doesn't retry joining the group after rediscovering group coordinator
> ----------------------------------------------------------------------------------------
>
>                 Key: KAFKA-16178
>                 URL: https://issues.apache.org/jira/browse/KAFKA-16178
>             Project: Kafka
>          Issue Type: Bug
>          Components: clients, consumer
>            Reporter: Dongnuo Lyu
>            Assignee: Lianet Magrans
>            Priority: Blocker
>              Labels: client-transitions-issues, consumer-threading-refactor
>             Fix For: 3.8.0
>
>         Attachments: pkc-devc63jwnj_jan19_0_debug
>
>
> {code:java}
> [2024-01-17 21:34:59,500] INFO [Consumer clientId=consumer.7e26597f-0285-4e13-88d6-31500a500275-0, groupId=consumer-groups-test-0] Discovered group coordinator Coordinator(key='consumer-groups-test-0', nodeId=3, host='b3-pkc-devc63jwnj.us-west-2.aws.devel.cpdev.cloud', port=9092, errorCode=0, errorMessage='') (org.apache.kafka.clients.consumer.internals.CoordinatorRequestManager:162)
> [2024-01-17 21:34:59,681] INFO [Consumer clientId=consumer.7e26597f-0285-4e13-88d6-31500a500275-0, groupId=consumer-groups-test-0] GroupHeartbeatRequest failed because the group coordinator Optional[b3-pkc-devc63jwnj.us-west-2.aws.devel.cpdev.cloud:9092 (id: 2147483644 rack: null)] is incorrect. Will attempt to find the coordinator again and retry in 0ms: This is not the correct coordinator. (org.apache.kafka.clients.consumer.internals.HeartbeatRequestManager:407)
> [2024-01-17 21:34:59,681] INFO [Consumer clientId=consumer.7e26597f-0285-4e13-88d6-31500a500275-0, groupId=consumer-groups-test-0] Group coordinator b3-pkc-devc63jwnj.us-west-2.aws.devel.cpdev.cloud:9092 (id: 2147483644 rack: null) is unavailable or invalid due to cause: This is not the correct coordinator.. Rediscovery will be attempted. (org.apache.kafka.clients.consumer.internals.CoordinatorRequestManager:136)
> [2024-01-17 21:34:59,882] INFO [Consumer clientId=consumer.7e26597f-0285-4e13-88d6-31500a500275-0, groupId=consumer-groups-test-0] Discovered group coordinator Coordinator(key='consumer-groups-test-0', nodeId=3, host='b3-pkc-devc63jwnj.us-west-2.aws.devel.cpdev.cloud', port=9092, errorCode=0, errorMessage='') (org.apache.kafka.clients.consumer.internals.CoordinatorRequestManager:162){code}
> Some of the consumers don't consume any message. The logs show that after the consumer starts up and successfully logs in,
>  # The consumer discovers the group coordinator.
>  # The heartbeat to join group fails because "This is not the correct coordinator"
>  # The consumer rediscover the group coordinator.
> Another heartbeat should follow the rediscovery of the group coordinator, but there's no logs showing sign of a heartbeat request. 
> On the server side, there is completely no log about the group id. A suspicion is that the consumer doesn't send a heartbeat request after rediscover the group coordinator.



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