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https://issues.apache.org/jira/browse/FLINK-1180?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14179672#comment-14179672
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Fabian Hueske commented on FLINK-1180:
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Have a look at how the wrappers for the mapred API are done.
Maybe you can reuse some of the wrappers for value iterators and output 
collectors.

> Expose Map and Reduce methods of hadoop via flink interface
> -----------------------------------------------------------
>
>                 Key: FLINK-1180
>                 URL: https://issues.apache.org/jira/browse/FLINK-1180
>             Project: Flink
>          Issue Type: Task
>          Components: Hadoop Compatibility
>    Affects Versions: 0.7-incubating
>            Reporter: Mohitdeep Singh
>            Assignee: Mohitdeep Singh
>              Labels: hadoop
>
> Flink currently supports hadoop mapred mapper and reduce function but not via 
> mapreduce api. 
> Reference: email exchange on flink mailing list.
> "...Another option would be to extend the Hadoop Compatibility Layer. Right 
> now, we have wrappers for Hadoop's mapred-API function (Mapper, Reducer), but 
> not for the mapreduce-API functions [2]. Having wrappers for mapreduce-API 
> functions would also be cool. There is no JIRA for this issue yet. "



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