[jira] [Commented] (KAFKA-9124) KIP-497: ISR changes should be propagated via Kafka protocol

["Viktor Somogyi-Vass (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/KAFKA-9124?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16976446#comment-16976446 ] 

Viktor Somogyi-Vass commented on KAFKA-9124:
--------------------------------------------

[~cmccabe] sure. Do you think we should mark this as a duplicate?

> KIP-497: ISR changes should be propagated via Kafka protocol
> ------------------------------------------------------------
>
>                 Key: KAFKA-9124
>                 URL: https://issues.apache.org/jira/browse/KAFKA-9124
>             Project: Kafka
>          Issue Type: Sub-task
>            Reporter: Viktor Somogyi-Vass
>            Assignee: Colin McCabe
>            Priority: Major
>
> Currently {{Partition.expandIsr}} and {{Partition.shrinkIsr}} updates Zookeeper which is listened by the controller and that's how it notices the ISR changes and sends out metadata requests.
> Instead of this the brokers should use Kafka protocol messages to send out ISR change notifications.



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