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https://issues.apache.org/jira/browse/FLINK-28800?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Xintong Song reassigned FLINK-28800:
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Assignee: Weijie Guo
> HsFileDataManager should avoid busy-loop when fileReader has not data to read
> -----------------------------------------------------------------------------
>
> Key: FLINK-28800
> URL: https://issues.apache.org/jira/browse/FLINK-28800
> Project: Flink
> Issue Type: Bug
> Components: Runtime / Network
> Reporter: Weijie Guo
> Assignee: Weijie Guo
> Priority: Major
>
> When fileReader has no data to read, for example, most of data is consumed
> from memory. HsFileDataManager will encounter busy-loop problem, which will
> lead to a meaningless surge in CPU utilization and seriously affect
> performance.
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