How to set the number of mappers to be created in MapReduce?
What is KeyValueTextInputFormat in Hadoop MapReduce?
How to write a custom partitioner for a Hadoop MapReduce job?
Explain job scheduling through JobTracker
what does the text input format do?
What is the utility of using Writable Comparable Custom Class in Map Reduce code?
Which are the methods in the mapper interface?
What do you mean by shuffling and sorting in MapReduce?
Define Writable data types in MapReduce?
Which interface needs to be implemented to create Mapper and Reducer for the Hadoop?
What is heartbeat in hdfs?
What are the steps involved in MapReduce framework?
What is a map side join?