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https://issues.apache.org/jira/browse/FLINK-2121?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Stephan Ewen closed FLINK-2121.
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> FileInputFormat.addFilesInDir miscalculates total size
> ------------------------------------------------------
>
> Key: FLINK-2121
> URL: https://issues.apache.org/jira/browse/FLINK-2121
> Project: Flink
> Issue Type: Bug
> Components: Core
> Reporter: Gabor Gevay
> Assignee: Gabor Gevay
> Priority: Minor
> Fix For: 0.9
>
>
> In FileInputFormat.addFilesInDir, the length variable should start from 0,
> because the return value is always used by adding it to the length (instead
> of just assigning). So with the current version, the length before the call
> will be seen twice in the result.
> mvn verify caught this for me now. The reason why this hasn't been seen yet,
> is because testGetStatisticsMultipleNestedFiles catches this only if it gets
> the listings of the outer directory in a certain order. Concretely, if the
> inner directory is seen before the other file in the outer directory, then
> length is 0 at that point, so the bug doesn't show. But if the other file is
> seen first, then its size is added twice to the total result.
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