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https://issues.apache.org/jira/browse/KAFKA-2722?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14985686#comment-14985686
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ASF GitHub Bot commented on KAFKA-2722:
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Github user becketqin closed the pull request at:
https://github.com/apache/kafka/pull/402
> Improve ISR change propagation
> ------------------------------
>
> Key: KAFKA-2722
> URL: https://issues.apache.org/jira/browse/KAFKA-2722
> Project: Kafka
> Issue Type: Bug
> Reporter: Jiangjie Qin
> Assignee: Jiangjie Qin
> Priority: Blocker
> Fix For: 0.9.0.0
>
>
> Currently the ISR change propagation interval is hard coded to 5 seconds,
> this might still create a lot of ISR change propagation for a large cluster
> in cases such as rolling bounce. The patch uses a dynamic propagation
> interval and fixed a performance bug in IsrChangeNotificationListener on
> controller.
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