Why do we need MapReduce during Pig programming?
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Explain how mapreduce works.
How is Spark not quite the same as MapReduce? Is Spark quicker than MapReduce?
Mention what are the main configuration parameters that user need to specify to run mapreduce job?
Explain the process of spilling in MapReduce?
How can you add the arbitrary key-value pairs in your mapper?
What is shuffling and sorting in Hadoop MapReduce?
List the configuration parameters that have to be specified when running a MapReduce job.
what is distributed cache in mapreduce framework?
What is Data Locality in Hadoop?
What is the use of InputFormat in MapReduce process?
Can we set the number of reducers to zero in MapReduce?
Why the output of map tasks are stored (spilled ) into local disc and not in hdfs?
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