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Posted to jira@kafka.apache.org by "Omnia Ibrahim (Jira)" <ji...@apache.org> on 2026/08/13 14:27:00 UTC

[jira] [Updated] (KAFKA-20000) Optimize retry backoff for CONCURRENT_TRANSACTIONS to improve TV2 throughput

     [ https://issues.apache.org/jira/browse/KAFKA-20000?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Omnia Ibrahim updated KAFKA-20000:
----------------------------------
    Fix Version/s: 4.5.0
                       (was: 4.4.0)

> Optimize retry backoff for CONCURRENT_TRANSACTIONS to improve TV2 throughput
> ----------------------------------------------------------------------------
>
>                 Key: KAFKA-20000
>                 URL: https://issues.apache.org/jira/browse/KAFKA-20000
>             Project: Kafka
>          Issue Type: Improvement
>            Reporter: Chia-Ping Tsai
>            Assignee: Francis Godinho
>            Priority: Major
>             Fix For: 4.5.0
>
>
> Transaction V2 introduces frequent state transitions (epoch bumps) that briefly reject concurrent requests with CONCURRENT_TRANSACTIONS. The default client retry backoff (100ms) is excessive for these transient locks, leading to unnecessary latency and degraded throughput. Reducing the backoff allows faster retries and smoother performance during state transitions.



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