What is the need of MapReduce?
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Explain what does the conf.setmapper class do?
What are the configuration parameters in the 'MapReduce' program?
How can we assure that the values regarding a particular key goes to the same reducer?
How many times combiner is called on a mapper node in Hadoop?
What is a Distributed Cache in Hadoop?
A number of combiners can be changed or not in MapReduce?
What are the disservices of utilizing Apache Spark over Hadoop MapReduce?
What is an input reader in reference to mapreduce?
It can be possible that a Job has 0 reducers?
Can MapReduce program be written in any language other than Java?
What is shuffling and sorting in Hadoop MapReduce?
Explain about the partitioning, shuffle and sort phase in MapReduce?
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