What do you understand by compute and storage nodes?
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Is it possible to rename the output file?
Why Mapreduce output written in local disk?
What is the inputsplit in map reduce software?
What are the main configuration parameters in a MapReduce program?
Is it mandatory to set input and output type/format in MapReduce?
what is a sequence file in Hadoop?
Where sorting is done on mapper node or reducer node in MapReduce?
Detail description of the Reducer phases?
How do Hadoop MapReduce works?
What is the fundamental difference between a MapReduce InputSplit and HDFS block?
What is a RecordReader in Hadoop MapReduce?
Explain how do ‘map’ and ‘reduce’ work?
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