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Posted to jira@kafka.apache.org by "Kevin Lafferty (JIRA)" <ji...@apache.org> on 2018/10/19 17:24:01 UTC

[jira] [Commented] (KAFKA-7299) batch LeaderAndIsr requests during auto preferred leader election

    [ https://issues.apache.org/jira/browse/KAFKA-7299?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16657135#comment-16657135 ] 

Kevin Lafferty commented on KAFKA-7299:
---------------------------------------

[~junrao] can this be backported for inclusion in 1.1.2?

> batch LeaderAndIsr requests during auto preferred leader election
> -----------------------------------------------------------------
>
>                 Key: KAFKA-7299
>                 URL: https://issues.apache.org/jira/browse/KAFKA-7299
>             Project: Kafka
>          Issue Type: Sub-task
>          Components: core
>    Affects Versions: 2.0.0
>            Reporter: Jun Rao
>            Assignee: huxihx
>            Priority: Major
>             Fix For: 2.1.0
>
>
> Currently, in KafkaController.checkAndTriggerAutoLeaderRebalance(), we call onPreferredReplicaElection() one partition at a time. This means that the controller will be sending LeaderAndIsrRequest one partition at a time. It would be more efficient to call onPreferredReplicaElection() for a batch of partitions to reduce the number of LeaderAndIsrRequests.



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