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From "JiangKai (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (MAPREDUCE-3384) Add warning message for org.apache.hadoop.mapreduce.lib.reduce.LongSumReducer
Date Wed, 09 Nov 2011 09:23:51 GMT
Add warning message for org.apache.hadoop.mapreduce.lib.reduce.LongSumReducer
-----------------------------------------------------------------------------

                 Key: MAPREDUCE-3384
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3384
             Project: Hadoop Map/Reduce
          Issue Type: Improvement
            Reporter: JiangKai
            Priority: Minor
             Fix For: 0.24.0


When we call the function reduce() of LongSumReducer,the result may overflow.
We should send a warning message to users if overflow occurs.

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