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Posted to dev@kafka.apache.org by "Rajini Sivaram (Jira)" <ji...@apache.org> on 2021/05/18 08:43:00 UTC

[jira] [Resolved] (KAFKA-12751) ISRs remain in in-flight state if proposed state is same as actual state

     [ https://issues.apache.org/jira/browse/KAFKA-12751?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Rajini Sivaram resolved KAFKA-12751.
------------------------------------
      Reviewer: David Arthur
    Resolution: Fixed

> ISRs remain in in-flight state if proposed state is same as actual state
> ------------------------------------------------------------------------
>
>                 Key: KAFKA-12751
>                 URL: https://issues.apache.org/jira/browse/KAFKA-12751
>             Project: Kafka
>          Issue Type: Bug
>          Components: core
>    Affects Versions: 2.7.0, 2.8.0, 2.7.1
>            Reporter: Rajini Sivaram
>            Assignee: Rajini Sivaram
>            Priority: Critical
>             Fix For: 2.7.2, 2.8.1
>
>
> If proposed ISR state in an AlterIsr request is the same as the actual state, Controller returns a successful response without performing any updates. But the broker code that processes the response leaves the ISR state in in-flight state without committing. This prevents further ISR updates until the next leader election.



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