Hadoop reduce become slower when there are less reduce task

Hadoop reduce become slower when there are less reduce task

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How to enable recursive reading in imapla

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Compare scala map values to a list and return default value for keys that don't exist in the list

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Complete list of property that is used in Hadoop framework

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select distinct query in java map reduce

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IntWritable.set(IntWritable) is throwing error

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First Hadoop program using map and reducer

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