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What combiners are and when you should use a combiner in a mapreduce job?
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What does a 'MapReduce Partitioner' do?
what is JobTracker in Hadoop? What are the actions followed by Hadoop?
what is NameNode in Hadoop?
In which kind of scenarios MapReduce jobs will be more useful than PIG in Hadoop?
how to proceed to write your first mapreducer program?
Explain the features of Apache Spark because of which it is superior to Apache MapReduce?
What is a "map" in Hadoop?
How much space will the split occupy in Mapreduce?
What platform and Java version is required to run Hadoop?
what job does the conf class do?
What are the the issues associated with the map and reduce slots based mechanism in mapReduce?
How can we assure that the values regarding a particular key goes to the same reducer?
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