What are the advantages of using map side join in mapreduce?
How many Mappers run for a MapReduce job?
How to write a custom partitioner for a Hadoop MapReduce job?
What is Shuffling and Sorting in a MapReduce?
What is the role of a MapReduce partitioner?
When is the reducers are started in a MapReduce job?
How hadoop mapreduce works?
How to set mappers and reducers for MapReduce jobs?
How to set the number of mappers to be created in MapReduce?
How many numbers of reducers run in Map-Reduce Job?
When should you use a reducer?
What is Reducer in MapReduce?
what is a Task Tracker in Hadoop?