[jira] Updated: (HADOOP-1090) In SortValidator, the check for whether a file belongs to sort-input or sort-output dir is weak

["Arun C Murthy (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HADOOP-1090?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Arun C Murthy updated HADOOP-1090:
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    Attachment: HADOOP-1090_20070331_1.patch

Simple fix...

> In SortValidator, the check for whether a file belongs to sort-input or sort-output dir is weak
> -----------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-1090
>                 URL: https://issues.apache.org/jira/browse/HADOOP-1090
>             Project: Hadoop
>          Issue Type: Bug
>          Components: mapred
>            Reporter: Devaraj Das
>         Assigned To: Arun C Murthy
>         Attachments: HADOOP-1090_20070331_1.patch
>
>
> In SortValidator, Maps invoke the method called deduceInputFile in the configure method. The deduceInputFile is supposed to return whether the input file belongs to the sort-input directory or the sort-output directory. However, the check that deduceInputFile does - inputFile.toString().startsWith(inputPaths[0].toString()) - is not totally correct. The check will always returns true for inputPaths like /user/foo/smallInput/<filenames>, /user/foo/smallInput-sorted/<filenames>. This finally causes the SortValidator to declare the sort output as incorrect.

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