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Posted to jira@kafka.apache.org by "Jason Gustafson (Jira)" <ji...@apache.org> on 2020/10/14 01:09:00 UTC

[jira] [Updated] (KAFKA-10521) Remove ZK watch for completing partition reassignment

     [ https://issues.apache.org/jira/browse/KAFKA-10521?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jason Gustafson updated KAFKA-10521:
------------------------------------
    Affects Version/s:     (was: 2.7.0)

> Remove ZK watch for completing partition reassignment
> -----------------------------------------------------
>
>                 Key: KAFKA-10521
>                 URL: https://issues.apache.org/jira/browse/KAFKA-10521
>             Project: Kafka
>          Issue Type: Improvement
>          Components: controller
>            Reporter: David Arthur
>            Assignee: Jason Gustafson
>            Priority: Minor
>             Fix For: 2.7.0
>
>
> This is a follow-on from KAFKA-8836.
> Currently we have a ZK watch on the partition "/state" znode which fires a handler in the controller to check if a reassignment can be completed due to replicas catching up with the leader. This is located in KafkaController#processPartitionReassignmentIsrChange
> Following the change to updating ISR with the new AlterIsr RPC, we would like to remove this ZK watch and replace it with a direct call when writing out a new ISR in the controller.



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