What do you mean by data locality?
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Can we rename the output file?
What is the fundamental difference between a MapReduce InputSplit and HDFS block?
What is shuffleing in mapreduce?
Explain the Reducer's reduce phase?
Explain what you understand by speculative execution
What does a 'MapReduce Partitioner' do?
Clarify what combiners are and when you should utilize a combiner in a map reduce job?
Write a Mapreduce Program for Character Count ?
What is difference between an input split and hdfs block?
Explain task granularity
Explain about the basic parameters of mapper and reducer function
What is SequenceFileInputFormat in Hadoop MapReduce?
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