what is a sequence file in Hadoop?
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Mention what is the hadoop mapreduce apis contract for a key and value class?
What do sorting and shuffling do?
What is the default input type in MapReduce?
when do reducers play their role in a mapreduce task?
What are the various InputFormats in Hadoop?
Why do we need MapReduce during Pig programming?
What is the relation between MapReduce and Hive?
What does a split do?
How many Reducers run for a MapReduce job in Hadoop?
What is mapper in map reduce?
how to proceed to write your first mapreducer program?
What is a mapreduce algorithm?
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