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https://issues.apache.org/jira/browse/KAFKA-10794?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chia-Ping Tsai resolved KAFKA-10794.
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Fix Version/s: 2.8.0
Resolution: Fixed
> Replica leader election is too slow in the case of too many partitions
> ----------------------------------------------------------------------
>
> Key: KAFKA-10794
> URL: https://issues.apache.org/jira/browse/KAFKA-10794
> Project: Kafka
> Issue Type: Improvement
> Components: core
> Affects Versions: 2.6.0, 2.5.1
> Reporter: limeng
> Assignee: limeng
> Priority: Major
> Fix For: 2.8.0
>
> Attachments: clipboard_image_1606806581629.png,
> image-2020-12-02-15-23-43-384.png, 截屏2020-12-01 下午2.36.19.png, 截屏2020-12-02
> 上午11.43.48.png
>
>
> There is more than 6000 topics and 300 brokers in my kafka cluster, and we
> frequently run kafka-preferred-replica-election.sh to rebalance our cluster.
> But the reblance process spendes too more time and cpu resource like the
> picture blow.
> We find that the function:'controllerContext.allPartitions' is invoked too
> many times.
> !截屏2020-12-02 上午11.43.48.png!
> !image-2020-12-02-15-23-43-384.png!
>
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