How is Spark not quite the same as MapReduce? Is Spark quicker than MapReduce?
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What can be optimum value for Reducer?
Explain what are the basic parameters of a mapper?
what does the conf.setMapper Class do ?
when do reducers play their role in a mapreduce task?
What is identity mapper and reducer? In which cases can we use them?
what are the basic parameters of a Mapper?
Where is the output of Mapper written in Hadoop?
What is the core of the job in MapReduce framework?
What is a Distributed Cache in Hadoop?
What are the primary phases of a Reducer?
What are the advantages of using map side join in mapreduce?
Is it necessary to write a mapreduce job in java?
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