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Posted to mapreduce-issues@hadoop.apache.org by "Allen Wittenauer (JIRA)" <ji...@apache.org> on 2015/05/06 05:27:40 UTC

[jira] [Updated] (MAPREDUCE-3385) Add warning message for the overflow in reduce() of org.apache.hadoop.mapreduce.lib.reduce.IntSumReducer

     [ https://issues.apache.org/jira/browse/MAPREDUCE-3385?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Allen Wittenauer updated MAPREDUCE-3385:
----------------------------------------
    Labels: BB2015-05-TBR  (was: )

> Add warning message for the overflow in reduce() of org.apache.hadoop.mapreduce.lib.reduce.IntSumReducer
> --------------------------------------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-3385
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3385
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>            Reporter: JiangKai
>            Priority: Minor
>              Labels: BB2015-05-TBR
>         Attachments: MAPREDUCE-3385.patch
>
>
> When we call the function reduce() of IntSumReducer,the result may overflow.
> We should send a warning message to users if overflow occurs.



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