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Posted to jira@kafka.apache.org by "Jainil Rana (Jira)" <ji...@apache.org> on 2025/12/11 03:59:00 UTC

[jira] [Assigned] (KAFKA-19652) Consumer throughput drops by 10 times with Kafka v3.9.0 in ZK mode

     [ https://issues.apache.org/jira/browse/KAFKA-19652?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jainil Rana reassigned KAFKA-19652:
-----------------------------------

    Assignee: Jainil Rana

> Consumer throughput drops by 10 times with Kafka v3.9.0 in ZK mode
> ------------------------------------------------------------------
>
>                 Key: KAFKA-19652
>                 URL: https://issues.apache.org/jira/browse/KAFKA-19652
>             Project: Kafka
>          Issue Type: Bug
>          Components: clients, consumer
>    Affects Versions: 3.9.0
>            Reporter: Sharad Garg
>            Assignee: Jainil Rana
>            Priority: Blocker
>
> Kafka consumer throughput in best-case drops by ~10 times after upgrading to kafka v3.9.0 from v3.5.1. Note that this is in ZK mode and KRAFT migration is not done yet.



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