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Hadoop, mail # user - Is default number of reducers = 1?


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Is default number of reducers = 1?
Mark Kerzner 2012-02-21, 05:04
Hi,

I used to do

job.setNumReduceTasks(1);

but I realized that this is bad and commented out this line

//job.setNumReduceTasks(1);

I still see the number of reduce tasks as 1 when my mappers number 4. Why
could this be?

Thank you,
Mark