What is Counter in MapReduce?
Differentiate Reducer and Combiner in Hadoop MapReduce?
What is the difference between HDFS block and input split?
What is the relation between MapReduce and Hive?
How to change a number of mappers running on a slave in MapReduce?
What are the identity mapper and reducer in MapReduce?
What do you mean by inputformat?
Why do we need MapReduce during Pig programming?
What is Shuffling and Sorting in a MapReduce?
Write a short note on the disadvantages of mapreduce
How many Mappers run for a MapReduce job in Hadoop?
How to optimize MapReduce Job?
Explain what is shuffling in mapreduce?