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How to specify more than one directory as input in the Hadoop MapReduce Program?
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Explain task granularity
What is the job of blend () and repartition () in Map Reduce?
what is the Hadoop MapReduce APIs contract for a key and value class?
what is JobTracker in Hadoop? What are the actions followed by Hadoop?
What are combiners? When should I use a combiner in my MapReduce Job?
Define the Use of MapReduce?
When the reducers are are started in a mapreduce job?
Explain what are the basic parameters of a mapper?
What is MapReduce? What are the syntax you use to run a MapReduce program?
What combiners is and when you should use a combiner in a MapReduce Job?
What is the problem with the small file in Hadoop?
Is it possible to search for files using wildcards?
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