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https://issues.apache.org/jira/browse/FLINK-20740?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yingjie Cao updated FLINK-20740:
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Summary: Use managed memory to avoid direct memory OOM error for sort-merge
shuffle (was: Use managed memory to avoid direct memory OOM error)
> Use managed memory to avoid direct memory OOM error for sort-merge shuffle
> --------------------------------------------------------------------------
>
> Key: FLINK-20740
> URL: https://issues.apache.org/jira/browse/FLINK-20740
> Project: Flink
> Issue Type: Bug
> Components: Runtime / Network
> Affects Versions: 1.12.0
> Reporter: Yingjie Cao
> Priority: Major
> Fix For: 1.13.0
>
>
> Currently, sort-merge blocking shuffle uses some unmanaged memory for data
> writing and reading, which means users must increase the size of direct
> memory, otherwise, one may encounter direct memory OOM error, which is really
> bad for usability.
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