Un-Answered Questions { MapReduce }

Explain the general mapreduce algorithm

369


What is mapper in map reduce?

378


What happens if the quantity of the reducer is 0 in mapreduce?

349


Clarify what combiners are and when you should utilize a combiner in a map reduce job?

352


Clarify what is shuffling in map reduce?

365


What are the fundamental configurations parameters specified in map reduce?

347


What combiners are and when you should utilize a combiner in a map reduce job?

361


What are the four essential parameters of a mapper?

376


Mention what is the hadoop mapreduce apis contract for a key and value class?

429


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

352


What is the function of mapreduce partitioner?

387


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

344


Explain what is “map” and what is "reducer" in hadoop?

379


Explain what does the conf.setmapper class do?

346


Explain what are the basic parameters of a mapper?

471