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What are the data components used by Hadoop?
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Define Writable data types in MapReduce?
Can there be no Reducer?
What is the sequence of execution of Mapper, Combiner, and Partitioner in MapReduce?
Describe what happens to a mapreduce job from submission to output?
What is the process of changing the split size if there is limited storage space on Commodity Hardware?
What is RecordReader in a Map Reduce?
Can you tell us how many daemon processes run on a hadoop system?
What do you know about nlineinputformat?
Whether the output of mapper or output of partitioner written on local disk?
Explain the sequence of execution of all the components of MapReduce like a map, reduce, recordReader, split, combiner, partitioner, sort, shuffle.
Explain Working of MapReduce?
Explain about the partitioning, shuffle and sort phase
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