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Posted to issues@flink.apache.org by "Yingjie Cao (Jira)" <ji...@apache.org> on 2022/01/26 02:25:00 UTC

[jira] [Commented] (FLINK-21789) Make FileChannelManagerImpl#getNextPathNum select data directories fairly

    [ https://issues.apache.org/jira/browse/FLINK-21789?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17482187#comment-17482187 ] 

Yingjie Cao commented on FLINK-21789:
-------------------------------------

Merged into master via 589a566784451ef3943ee024d46fdd8d33d30a66.

> Make FileChannelManagerImpl#getNextPathNum select data directories fairly
> -------------------------------------------------------------------------
>
>                 Key: FLINK-21789
>                 URL: https://issues.apache.org/jira/browse/FLINK-21789
>             Project: Flink
>          Issue Type: Sub-task
>          Components: Runtime / Network
>            Reporter: Yingjie Cao
>            Assignee: Yuxin Tan
>            Priority: Minor
>              Labels: pull-request-available
>             Fix For: 1.15.0
>
>
> 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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