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https://issues.apache.org/jira/browse/MAPREDUCE-5159?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13652171#comment-13652171
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Vinod Kumar Vavilapalli commented on MAPREDUCE-5159:
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+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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