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From "Vinod Kumar Vavilapalli (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-5159) Aggregatewordcount and aggregatewordhist in hadoop-1 examples are not binary compatible with hadoop-2 mapred.lib.aggregate
Date Wed, 08 May 2013 18:23:16 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-5159?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13652171#comment-13652171
] 

Vinod Kumar Vavilapalli commented on MAPREDUCE-5159:
----------------------------------------------------

+1, this looks good. Checking it in.
                
> Aggregatewordcount and aggregatewordhist in hadoop-1 examples are not binary compatible
with hadoop-2 mapred.lib.aggregate
> --------------------------------------------------------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-5159
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-5159
>             Project: Hadoop Map/Reduce
>          Issue Type: Sub-task
>            Reporter: Zhijie Shen
>            Assignee: Zhijie Shen
>         Attachments: MAPREDUCE-5159.1.patch
>
>
> Both examples in hadoop-1 use org.apache.hadoop.mapred.lib.aggregate.ValueAggregatorJob.createValueAggregatorJob(String
args[], Class<?> caller), which no longer exists after upgrading to hadoop-2. Therefore,
they cannot not find the accordant function with their function signature in the binary.

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