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https://issues.apache.org/jira/browse/KAFKA-8559?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ismael Juma resolved KAFKA-8559.
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Resolution: Fixed
Fix Version/s: 2.4.0
> PartitionStates.partitionStates cause array grow allocation.
> -------------------------------------------------------------
>
> Key: KAFKA-8559
> URL: https://issues.apache.org/jira/browse/KAFKA-8559
> Project: Kafka
> Issue Type: Improvement
> Components: consumer
> Reporter: Wenshuai Hou
> Priority: Major
> Fix For: 2.4.0
>
> Attachments: image-2019-06-18-19-10-10-633.png
>
>
> this method causes 238 TLABs totaling 297mb of Array.copyOf(). The side of
> the array can be determined at creation.
> !image-2019-06-18-19-10-10-633.png!
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