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From "Amar Kamat (JIRA)" <j...@apache.org>
Subject [jira] Commented: (MAPREDUCE-735) ArrayIndexOutOfBoundsException is thrown by KeyFieldBasedPartitioner
Date Fri, 10 Jul 2009 07:41:14 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-735?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12729561#action_12729561
] 

Amar Kamat commented on MAPREDUCE-735:
--------------------------------------

Looks like the file I intended to patch got moved to mapreduce. I forgot to add the testcase
changes to mapreduce tests. Will upload a new patch for the same. 

> ArrayIndexOutOfBoundsException is thrown by KeyFieldBasedPartitioner
> --------------------------------------------------------------------
>
>                 Key: MAPREDUCE-735
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-735
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>    Affects Versions: 0.20.1
>            Reporter: Suman Sehgal
>            Assignee: Amar Kamat
>         Attachments: HADOOP-6130-v1.0.patch, MAPREDUCE-735-v1.2.patch
>
>
> KeyFieldBasedPartitioner throws "KeyFieldBasedPartitioner" when some part of the specified
key is missing. 
> Scenario :
> =======
> when  value of num.key.fields.for.partition is greater than the separators provided in
the input.
> Command:
> ========
> hadoop jar streaming.jar -Dmapred.reduce.tasks=3 -Dnum.key.fields.for.partition=5 -input
<input-dir>  -output <output-dir> -mapper org.apache.hadoop.mapred.lib.IdentityMapper
-reducer org.apache.hadoop.mapred.lib.IdentityReducer -inputformat org.apache.hadoop.mapred.KeyValueTextInputFormat
-partitioner org.apache.hadoop.mapred.lib.KeyFieldBasedPartitioner

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