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https://issues.apache.org/jira/browse/FLINK-21789?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yingjie Cao updated FLINK-21789:
--------------------------------
Summary: Make FileChannelManagerImpl#getNextPathNum select data directories
fairly (was: Make FileChannelManagerImpl#getNextPathNum select data directory
fairly)
> Make FileChannelManagerImpl#getNextPathNum select data directories fairly
> -------------------------------------------------------------------------
>
> Key: FLINK-21789
> URL: https://issues.apache.org/jira/browse/FLINK-21789
> Project: Flink
> Issue Type: Improvement
> Components: Runtime / Network
> Reporter: Yingjie Cao
> Priority: Minor
> Fix For: 1.13.0
>
>
> The get and increase next path index in FileChannelManagerImpl#getNextPathNum
> is not atomic which may cause unfairness of data directory selection (bad for
> performance if multiple disk is configured).
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