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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-2121) FileInputFormat.addFilesInDir miscalculates total size
Date Mon, 01 Jun 2015 15:59:17 GMT

    [ https://issues.apache.org/jira/browse/FLINK-2121?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14567474#comment-14567474
] 

ASF GitHub Bot commented on FLINK-2121:
---------------------------------------

Github user asfgit closed the pull request at:

    https://github.com/apache/flink/pull/752


> 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
>
> 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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