[jira] Issue Comment Edited: (HADOOP-5779) KeyFieldBasedPartitioner would lost data if specifed field not exist, and it should encode free not only support utf8

["ZhuGuanyin (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HADOOP-5779?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12708734#action_12708734 ] 

ZhuGuanyin edited comment on HADOOP-5779 at 5/17/09 6:51 PM:
-------------------------------------------------------------

create patch using svn diff instead of diff

      was (Author: buptzhugy):
    create patsh using svn diff instead of diff
  
> KeyFieldBasedPartitioner would lost data if specifed field not exist, and it should encode free not only support utf8
> ---------------------------------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-5779
>                 URL: https://issues.apache.org/jira/browse/HADOOP-5779
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: mapred
>    Affects Versions: 0.20.0
>            Reporter: ZhuGuanyin
>             Fix For: 0.21.0
>
>         Attachments: encode-free-KeyFieldBasedPartitioner-v1.patch, encode-free-KeyFieldBasedPartitioner.patch
>
>
> 1) Currently,  KeyFieldBasedPartitioner only support utf8 encoded recored,  we should use text or byteswriteable data types.
> 2) when using KeyFieldBasedPartitioner, if the record doesn't contain the specified field, the endChar would equal with array.length, which throw ArrayOutOfIndex exception, losting that record!

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