[jira] [Resolved] (KAFKA-8179) Incremental Rebalance Protocol for Kafka Consumer

["Guozhang Wang (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/KAFKA-8179?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Guozhang Wang resolved KAFKA-8179.
----------------------------------
    Fix Version/s: 2.4.0
                   2.5.0
       Resolution: Fixed

> Incremental Rebalance Protocol for Kafka Consumer
> -------------------------------------------------
>
>                 Key: KAFKA-8179
>                 URL: https://issues.apache.org/jira/browse/KAFKA-8179
>             Project: Kafka
>          Issue Type: Improvement
>          Components: consumer
>            Reporter: Guozhang Wang
>            Assignee: Guozhang Wang
>            Priority: Major
>             Fix For: 2.5.0, 2.4.0
>
>
> Recently Kafka community is promoting cooperative rebalancing to mitigate the pain points in the stop-the-world rebalancing protocol. This ticket is created to initiate that idea at the Kafka consumer client, which will be beneficial for heavy-stateful consumers such as Kafka Streams applications.
> In short, the scope of this ticket includes reducing unnecessary rebalance latency due to heavy partition migration: i.e. partitions being revoked and re-assigned. This would make the built-in consumer assignors (range, round-robin etc) to be aware of previously assigned partitions and be sticky in best-effort.



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