Why the output of map tasks are stored (spilled ) into local disc and not in hdfs?
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Why do we need MapReduce during Pig programming?
What do you understand by mapreduce?
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Whether the output of mapper or output of partitioner written on local disk?
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It can be possible that a Job has 0 reducers?
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Define Writable data types in MapReduce?
what are the basic parameters of a Mapper?
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