What is reduce side join in mapreduce?
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What is RecordReader in a Map Reduce?
Define MapReduce?
Which are the methods in the mapper interface?
What are the disservices of utilizing Apache Spark over Hadoop MapReduce?
Explain what does the conf.setmapper class do?
For a Hadoop job, how will you write a custom partitioner?
What is Counter in MapReduce?
What is the relation between MapReduce and Hive?
What is the InputSplit in map reduce ?
Explain the general mapreduce algorithm
What combiners are and when you should utilize a combiner in a map reduce job?
Explain the process of spilling in Hadoop MapReduce?
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