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Map Reduce - PowerPoint PPT Presentation


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-- Nagarjunak. Map Reduce. More Features. Combiner Counters MultipleInputFormat. Combiner. A local reducer conf.setCombinerClass ( LongSumReducer.class ); .

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nagarjunak
-- Nagarjunak

Map Reduce

nagarjuna@outlook.com

more features
More Features
  • Combiner
  • Counters
  • MultipleInputFormat

nagarjuna@outlook.com

combiner
Combiner
  • A local reducer
  • conf.setCombinerClass(LongSumReducer.class);

nagarjuna@outlook.com