How to create custom key and custom value in MapReduce Job?
What is the function of mapreducer partitioner?
What is shuffling in mapreduce?
What MapReduce framework consists of?
Which Sorting algorithm is used in Hadoop MapReduce?
What is reduce side join in mapreduce?
Write a short note on the disadvantages of mapreduce
How many InputSplits is made by a Hadoop Framework?
How hadoop mapreduce works?
What happens when a DataNode fails during the write process?
How does Hadoop Classpath plays a vital role in stopping or starting in Hadoop daemons?
What are the various input and output types supported by mapreduce?
when do reducers play their role in a mapreduce task?