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Posted to common-dev@hadoop.apache.org by "Sameer Paranjpye (JIRA)" <ji...@apache.org> on 2006/03/03 23:22:40 UTC

[jira] Assigned: (HADOOP-2) Reused Keys and Values fail with a Combiner

     [ http://issues.apache.org/jira/browse/HADOOP-2?page=all ]

Sameer Paranjpye reassigned HADOOP-2:
-------------------------------------

    Assign To: Owen O'Malley

> Reused Keys and Values fail with a Combiner
> -------------------------------------------
>
>          Key: HADOOP-2
>          URL: http://issues.apache.org/jira/browse/HADOOP-2
>      Project: Hadoop
>         Type: Bug
>   Components: mapred
>     Reporter: Owen O'Malley
>     Assignee: Owen O'Malley

>
> If the map function reuses the key or value by destructively modifying it after the output.collect(key,value) call and your application uses a combiner, the data is corrupted by having lots of instances with the last key or value.

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