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Posted to dev@kafka.apache.org by "Randall Hauch (JIRA)" <ji...@apache.org> on 2019/06/02 17:25:00 UTC

[jira] [Resolved] (KAFKA-8463) Fix redundant reassignment of tasks when leader worker leaves

     [ https://issues.apache.org/jira/browse/KAFKA-8463?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Randall Hauch resolved KAFKA-8463.
----------------------------------
    Resolution: Fixed
      Reviewer: Randall Hauch

Merged to `trunk` and backported to the `2.3` branch.

> Fix redundant reassignment of tasks when leader worker leaves
> -------------------------------------------------------------
>
>                 Key: KAFKA-8463
>                 URL: https://issues.apache.org/jira/browse/KAFKA-8463
>             Project: Kafka
>          Issue Type: Bug
>    Affects Versions: 2.3.0
>            Reporter: Konstantine Karantasis
>            Assignee: Konstantine Karantasis
>            Priority: Blocker
>             Fix For: 2.3.0
>
>
> There's a bug in the computation of new assignment for connectors and tasks in \{{IncrementalCooperativeAssignor}} that may lead to duplicate assignment. The existing assignments should always be considered because if the leader worker bounces there's no history of previous assignments. 



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