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https://issues.apache.org/jira/browse/KAFKA-6304?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jiangjie Qin updated KAFKA-6304:
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Summary: The controller should allow updating the partition reassignment
for the partitions being reassigned (was: The controller should allow update
the partition reassignment for the partitions being reassigned)
> The controller should allow updating 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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