[jira] [Resolved] (KAFKA-15170) CooperativeStickyAssignor cannot adjust assignment correctly

["A. Sophie Blee-Goldman (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/KAFKA-15170?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

A. Sophie Blee-Goldman resolved KAFKA-15170.
--------------------------------------------
    Resolution: Fixed

> CooperativeStickyAssignor cannot adjust assignment correctly
> ------------------------------------------------------------
>
>                 Key: KAFKA-15170
>                 URL: https://issues.apache.org/jira/browse/KAFKA-15170
>             Project: Kafka
>          Issue Type: Bug
>          Components: consumer
>    Affects Versions: 3.5.0
>            Reporter: li xiangyuan
>            Assignee: li xiangyuan
>            Priority: Major
>             Fix For: 3.8.0, 3.7.1
>
>
> AbstractStickyAssignor use ConstrainedAssignmentBuilder to build assignment when all consumers in group subscribe the same topic list, but it couldn't add all partitions move owner to another consumer to ``partitionsWithMultiplePreviousOwners``.
>  
> the reason is in function assignOwnedPartitions hasn't add partitions that rack-mismatch with prev owner to allRevokedPartitions, then partition only in this list would add to partitionsWithMultiplePreviousOwners.
>  
> In Cooperative Rebalance, partitions have changed owner must be removed from final assignment or will lead to incorrect consume behavior, I have already raise a pr, please take a look, thx
>  
> [https://github.com/apache/kafka/pull/13965]



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