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Date: Sun, 24 May 2009 02:58:45 -0700 (PDT)
From: "He Yongqiang (JIRA)" <jira@apache.org>
To: core-dev@hadoop.apache.org
Subject: [jira] Updated: (HADOOP-5816) ArrayIndexOutOfBoundsException when
 using KeyFieldBasedComparator
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     [ https://issues.apache.org/jira/browse/HADOOP-5816?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

He Yongqiang updated HADOOP-5816:
---------------------------------

    Status: Patch Available  (was: Open)

> ArrayIndexOutOfBoundsException when using KeyFieldBasedComparator
> -----------------------------------------------------------------
>
>                 Key: HADOOP-5816
>                 URL: https://issues.apache.org/jira/browse/HADOOP-5816
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: mapred
>    Affects Versions: 0.19.1
>            Reporter: Min Zhou
>            Priority: Minor
>         Attachments: hadoop-5816-2009-05-24.patch
>
>
> {code:java}  
>    if (!key.numeric) {
>       compareResult = compareBytes(first, start1, end1, second, start2, end2);
>     }
> {code}
> those lines above, compare two byte arrays in a wrong way, it will cause an ArrayIndexOutOfBoundsException,  that should be 
> {code:java}  
>    if (!key.numeric) {
>       compareResult = compareBytes(first, start1, end1-start1, second, start2, end2-start2);
>     }
> {code}

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