Can we set or modify number of reducers

Can we set or modify number of reducers
5.0 1

#1

Hi,

We all know to set or modify mappers using NUM mappers is there is way to set or modify number of reducers


#2

Hi,
From your question, there is no option to modify reducer in sqoop and moreover there is no reducer action in sqoop.

Regards
Venkatesh


#3

ok zero reducer in sqoop . only map process will run

apart from sqoop can we set number of reducers??


#4

Apart from sqoop:

In Hive

SET mapreduce.job.reduces = -1 (default) (Modify the value as required)

MR

job.setNumReduceTasks(0); (Modify the value as required)


#5

Sqoop jobs are map only. There is no role for reducers.