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From "Devaraj Das (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-5816) ArrayIndexOutOfBoundsException when using KeyFieldBasedComparator
Date Wed, 27 May 2009 02:32:45 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-5816?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Devaraj Das updated HADOOP-5816:
--------------------------------

       Resolution: Fixed
    Fix Version/s: 0.19.2
         Assignee: He Yongqiang
     Hadoop Flags: [Reviewed]
           Status: Resolved  (was: Patch Available)

I just committed this. Thanks, He!

> 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
>            Assignee: He Yongqiang
>            Priority: Minor
>             Fix For: 0.19.2
>
>         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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