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Clarify what combiners are and when you should utilize a combiner in a map reduce job?
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What is sqoop in Hadoop ?
List the configuration parameters that have to be specified when running a MapReduce job.
What is the relation between MapReduce and Hive?
What is the Hadoop MapReduce API contract for a key and value Class?
What is a MapReduce Combiner?
Explain about the partitioning, shuffle and sort phase in MapReduce?
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When is it suggested to use a combiner in a MapReduce job?
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