What is a "map" in Hadoop?
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What is InputFormat in Hadoop MapReduce?
When should you use a reducer?
What are the fundamental configurations parameters specified in map reduce?
What is MapReduce in Hadoop?
Explain what you understand by speculative execution
Define MapReduce?
What do you mean by shuffling and sorting in MapReduce?
What is the role of recordreader in hadoop mapreduce?
What happens when a datanode fails ?
What happens when a DataNode fails during the write process?
Differentiate Reducer and Combiner in Hadoop MapReduce?
What is the function of mapreduce partitioner?
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