what is a sequence file in Hadoop?
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Is it possible to split 100 lines of input as a single split in MapReduce?
Name job control options specified by mapreduce.
What does a split do?
Define speculative execution?
What do you mean by shuffling and sorting in MapReduce?
Define MapReduce?
Explain about the partitioning, shuffle and sort phase
What happens when the node running the map task fails before the map output has been sent to the reducer?
How do Hadoop MapReduce works?
What is map/reduce job in hadoop?
For a job in Hadoop, is it possible to change the number of mappers to be created?
What is the role of recordreader in hadoop mapreduce?
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