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From "Doug Cutting (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (HADOOP-2) Reused Keys and Values fail with a Combiner
Date Thu, 30 Mar 2006 20:11:26 GMT
     [ http://issues.apache.org/jira/browse/HADOOP-2?page=all ]
Doug Cutting resolved HADOOP-2:

    Resolution: Fixed

I just committed this.  Thanks Owen!

> 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
>      Fix For: 0.1
>  Attachments: clone-map-output.patch
> 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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