Explain the features of Apache Spark because of which it is superior to Apache MapReduce?
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How many Mappers run for a MapReduce job?
How many InputSplits is made by a Hadoop Framework?
What is the key- value pair in Hadoop MapReduce?
Differentiate Reducer and Combiner in Hadoop MapReduce?
What is a map side join?
What are the the issues associated with the map and reduce slots based mechanism in mapReduce?
Explain about the partitioning, shuffle and sort phase
Mention when to use Map reduce mode?
Compare Pig vs Hive vs Hadoop MapReduce?
Explain the process of spilling in Hadoop MapReduce?
How to overwrite an existing output file during execution of mapreduce jobs?
Explain what does the conf.setmapper class do?
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