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Which one will you decide for an undertaking – Hadoop MapReduce or Apache Spark?
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What is shuffling and sorting in Hadoop MapReduce?
When should you use sequencefileinputformat?
Explain what does the conf.setmapper class do?
what is a sequence file in Hadoop?
Which interface needs to be implemented to create Mapper and Reducer for the Hadoop?
Different ways of debugging a job in MapReduce?
what is JobTracker in Hadoop? What are the actions followed by Hadoop?
How many InputSplits is made by a Hadoop Framework?
Define the purpose of the partition function in mapreduce framework
Compare RDBMS with Hadoop MapReduce.
Why MapReduce uses the key-value pair to process the data?
Explain the process of spilling in MapReduce?
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