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Posted to jira@kafka.apache.org by "Sean Quah (Jira)" <ji...@apache.org> on 2026/03/07 03:51:00 UTC

[jira] [Created] (KAFKA-20273) Trigger rebalance on downgrade to classic group with outdated assignment

Sean Quah created KAFKA-20273:
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             Summary: Trigger rebalance on downgrade to classic group with outdated assignment
                 Key: KAFKA-20273
                 URL: https://issues.apache.org/jira/browse/KAFKA-20273
             Project: Kafka
          Issue Type: Sub-task
          Components: group-coordinator
            Reporter: Sean Quah
            Assignee: Sean Quah
             Fix For: 4.3.0


When assignment batching or offload are enabled, the target assignment can lag behind group subscriptions. When downgrading to a classic group, we must trigger a rebalance if the assignment is out of date.



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