What is the default input type in MapReduce?
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Why do we need MapReduce during Pig programming?
What is the job of blend () and repartition () in Map Reduce?
Write a short note on the disadvantages of mapreduce
Why Hadoop MapReduce?
What is a partitioner and how the user can control which key will go to which reducer?
What is the difference between map and reduce?
Does Partitioner run in its own JVM or shares with another process?
Explain the process of spilling in Hadoop MapReduce?
Which are the methods in the mapper interface?
Explain how mapreduce works.
Explain about the partitioning, shuffle and sort phase in MapReduce?
What is the need of MapReduce in Hadoop?