Why MapReduce uses the key-value pair to process the data?
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How many Mappers run for a MapReduce job in Hadoop?
what daemons run on a master node and slave nodes?
what is Speculative Execution?
Clarify what is shuffling in map reduce?
Is it possible to rename the output file?
Explain what is distributed cache in mapreduce framework?
How is Spark not quite the same as MapReduce? Is Spark quicker than MapReduce?
what are the most common input formats defined in Hadoop?
Is YARN a replacement of Hadoop MapReduce?
What do you understand by the term Straggler ?
What is Mapper in Hadoop MapReduce?
What is Reduce only jobs?
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