Explain what combiners are and when you should use a combiner in a mapreduce job?


No Answer is Posted For this Question
Be the First to Post Answer

Post New Answer

More MapReduce Interview Questions

Is YARN a replacement of Hadoop MapReduce?

1 Answers  


What is the difference between RDBMS with Hadoop MapReduce?

0 Answers  


What is Combiner in MapReduce?

0 Answers  


What is Counter in MapReduce?

0 Answers  


What is OutputCommitter?

0 Answers  


How to set the number of mappers to be created in MapReduce?

0 Answers  


Name job control options specified by mapreduce.

0 Answers  


Compare RDBMS with Hadoop MapReduce.

0 Answers  


Can you tell us how many daemon processes run on a hadoop system?

0 Answers  


Mention Hadoop core components?

0 Answers  


What is identity mapper and chain mapper?

0 Answers  


when do reducers play their role in a mapreduce task?

0 Answers  


Categories