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Posted to mapreduce-issues@hadoop.apache.org by "Priyo Mustafi (JIRA)" <ji...@apache.org> on 2011/01/26 23:18:43 UTC

[jira] Updated: (MAPREDUCE-1915) IndexCache - getIndexInformation - check reduce index Out Of Bounds

     [ https://issues.apache.org/jira/browse/MAPREDUCE-1915?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Priyo Mustafi updated MAPREDUCE-1915:
-------------------------------------

    Attachment: MAPREDUCE-1915_1.patch

Added testcase.  The latest attachment contains both the fix and the testcase.

> IndexCache - getIndexInformation - check reduce index Out Of Bounds
> -------------------------------------------------------------------
>
>                 Key: MAPREDUCE-1915
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-1915
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: tasktracker
>    Affects Versions: 0.20.1, 0.20.2, 0.20.3, 0.21.0, 0.22.0
>            Reporter: Rares Vernica
>            Priority: Trivial
>         Attachments: MAPREDUCE-1915.patch, MAPREDUCE-1915_1.patch
>
>
> When checking if the "reduce" index is out of bounds the check should be 
> info.mapSpillRecord.size() <= reduce
> instead of:
> info.mapSpillRecord.size() < reduce
> Not a big bug since an Out Of Bounds is thrown downstream anyway.

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