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Posted to mapreduce-issues@hadoop.apache.org by "Amareshwari Sriramadasu (JIRA)" <ji...@apache.org> on 2010/09/07 06:04:33 UTC

[jira] Commented: (MAPREDUCE-1242) Chain APIs error misleading

    [ https://issues.apache.org/jira/browse/MAPREDUCE-1242?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12906664#action_12906664 ] 

Amareshwari Sriramadasu commented on MAPREDUCE-1242:
----------------------------------------------------

The same holds for value class validation also. Harsh, Can you update the patch for value class also?

> Chain APIs error misleading
> ---------------------------
>
>                 Key: MAPREDUCE-1242
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-1242
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>            Reporter: Amogh Vasekar
>            Priority: Trivial
>         Attachments: MAPREDUCE-1242.patch
>
>
> Hi,
> I was using the Chain[Mapper/Reducer] APIs , and in Class Chain line 207 the error thrown : 
> "The Mapper output key class does not match the previous Mapper input key class"
> Shouldn't this be "The Mapper *input* key class does not match the previous Mapper *Output* key class" ? Sort of misleads :) 

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