Where the mapper's intermediate data will be stored?
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How hadoop mapreduce works?
Is it mandatory to set input and output type/format in MapReduce?
Can there be no Reducer?
Explain what are the basic parameters of a mapper?
Explain about the basic parameters of mapper and reducer function
Explain what combiners are and when you should use a combiner in a mapreduce job?
Mention Hadoop core components?
What is Distributed Cache in the MapReduce Framework?
What are the four essential parameters of a mapper?
How to submit extra files(jars, static files) for MapReduce job during runtime?
What are ‘reduces’?
What are the disservices of utilizing Apache Spark over Hadoop MapReduce?
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