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Posted to jira@kafka.apache.org by "Jiayao Sun (Jira)" <ji...@apache.org> on 2026/09/17 22:51:00 UTC

[jira] [Assigned] (KAFKA-21125) Ensure the remote metrics get removed on leadership change

     [ https://issues.apache.org/jira/browse/KAFKA-21125?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jiayao Sun reassigned KAFKA-21125:
----------------------------------

    Assignee: Jiayao Sun  (was: Chia-Ping Tsai)

> Ensure the remote metrics get removed on leadership change
> ----------------------------------------------------------
>
>                 Key: KAFKA-21125
>                 URL: https://issues.apache.org/jira/browse/KAFKA-21125
>             Project: Kafka
>          Issue Type: Improvement
>            Reporter: Chia-Ping Tsai
>            Assignee: Jiayao Sun
>            Priority: Minor
>
> KAFKA-21098 and KAFKA-21124 add the guard to the methods that update the metrics. However, the guard is not 100% reliable since the race between the check and the update could still re-register the metrics.
> A simple approach is that the tasks should remove their own metrics when they exit after being cancelled. The deletion is idempotent so we can tolerate the duplicate delete operations 🙂



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