When is reducer set to 0 in MapReduce? Why?
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What happen if number of the reducer is set 0 in Hadoop?
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Only mapper code will get executed and output of mapper is final output
Generally we will do that in map-only job ( there is no need of reducer job and output of mapper is considered as final output)
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What happen if number of the reducer is set 0 in Hadoop?
-
Only mapper code will get executed and output of mapper is final output
Generally we will do that in map-only job ( there is no need of reducer job and output of mapper is considered as final output)
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