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MapOutputKey and MapOutputValue Classes need to be added #1

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pereferrera opened this issue Jun 24, 2011 · 0 comments
Open

MapOutputKey and MapOutputValue Classes need to be added #1

pereferrera opened this issue Jun 24, 2011 · 0 comments

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@pereferrera
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In abstract class MapReduceTask,
If reducer != null : Two lines of code need to be added :

    job setMapOutputKeyClass   mapper.kType;
    job setMapOutputValueClass mapper.vType

Otherwise when map output differs from final output Hadoop will throw an error.
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@pereferrera