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List the network requirements for using Hadoop ?
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How many Mappers run for a MapReduce job?
How to create custom key and custom value in MapReduce Job?
What combiners is and when you should use a combiner in a MapReduce Job?
Which are the methods in the mapper interface?
Why the output of map tasks are stored (spilled ) into local disc and not in hdfs?
What do you mean by data locality?
Define the purpose of the partition function in mapreduce framework
What is the function of mapreducer partitioner?
How to write a custom partitioner for a Hadoop MapReduce job?
How many InputSplits is made by a Hadoop Framework?
Name job control options specified by mapreduce.
Explain the process of spilling in MapReduce?
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