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https://issues.apache.org/jira/browse/FLINK-24475?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17440532#comment-17440532
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Roman Khachatryan commented on FLINK-24475:
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It looks like this change caused performance regression. I've opened
FLINK-24826 for investigation and probably fix.
> Remove no longer used NestedMap* classes
> ----------------------------------------
>
> Key: FLINK-24475
> URL: https://issues.apache.org/jira/browse/FLINK-24475
> Project: Flink
> Issue Type: Bug
> Components: Runtime / State Backends
> Affects Versions: 1.14.0, 1.13.2, 1.15.0
> Reporter: Piotr Nowojski
> Assignee: Zakelly Lan
> Priority: Critical
> Labels: pull-request-available
> Fix For: 1.15.0
>
>
> After FLINK-21935 all of the {{NestedMapsStateTable}} classes are no longer
> used in the production code. They are still however being used in benchmarks
> in some tests. Benchmarks/tests should be migrated to {{CopyOnWrite}}
> versions while the {{NestedMaps}} classes should be removed.
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