Un-Answered Questions { MapReduce }

Explain the general mapreduce algorithm

363


What is mapper in map reduce?

374


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

345


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

346


Clarify what is shuffling in map reduce?

361


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?

358


What are the four essential parameters of a mapper?

374


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

425


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

350


What is the function of mapreduce partitioner?

383


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?

375


Explain what does the conf.setmapper class do?

346


Explain what are the basic parameters of a mapper?

469