What happens if number of reducers are zero?

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mohit123
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What happens if number of reducers are zero?

Postby mohit123 » Sun Sep 21, 2014 3:39 am

can i set number of reducers to zero? What happens if number of reducers are zero?


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Re: What happens if number of reducers are zero?

Postby Guest » Sun Sep 21, 2014 3:44 am

yes you can set number of Reducers to zero.

If Reducers set to zero then the output of the Map tasks directly go in to the HDFS output directory. But the framework does not sort the Map outputs before writing them out to the HDFS output directory.


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