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From "Jiangjie Qin (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (KAFKA-6304) The controller should allow update the partition reassignment for the partitions being reassigned
Date Mon, 04 Dec 2017 00:50:01 GMT

     [ https://issues.apache.org/jira/browse/KAFKA-6304?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jiangjie Qin updated KAFKA-6304:
--------------------------------
    Affects Version/s: 1.0.0
        Fix Version/s: 1.1.0
          Component/s: core
                       controller
           Issue Type: Improvement  (was: Bug)

> The controller should allow update the partition reassignment for the partitions being
reassigned
> -------------------------------------------------------------------------------------------------
>
>                 Key: KAFKA-6304
>                 URL: https://issues.apache.org/jira/browse/KAFKA-6304
>             Project: Kafka
>          Issue Type: Improvement
>          Components: controller, core
>    Affects Versions: 1.0.0
>            Reporter: Jiangjie Qin
>             Fix For: 1.1.0
>
>
> Currently the controller will not process the partition reassignment of a partition if
the partition is already being reassigned.
> The issue is that if there is a broker failure during the partition reassignment, the
partition reassignment may never finish. And the users may want to cancel the partition reassignment.
However, the controller will refuse to do that unless user manually deletes the partition
reassignment zk path, force a controller switch and then issue the revert command. This is
pretty involved. It seems reasonable for the controller to replace the ongoing stuck reassignment
and replace it with the updated partition assignment.



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