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https://issues.apache.org/jira/browse/FLINK-14612?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16967446#comment-16967446
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vinoyang commented on FLINK-14612:
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cc [~gjy]
> Degenerate the current ConcurrentHashMap type of intermediateResults to a
> normal HashMap type.
> ----------------------------------------------------------------------------------------------
>
> Key: FLINK-14612
> URL: https://issues.apache.org/jira/browse/FLINK-14612
> Project: Flink
> Issue Type: Sub-task
> Components: Runtime / Coordination
> Reporter: vinoyang
> Priority: Major
>
> After FLINK-11417, we made ExecutionGraph be a single-thread mode. It will no
> longer be plagued by concurrency issues. So, we can degenerate the current
> ConcurrentHashMap type of intermediateResults to a normal HashMap type.
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