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How to set the number of mappers to be created in MapReduce?
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What is shuffling in mapreduce?
How to create a custom key and custom value in MapReduce Job?
Explain how mapreduce works.
how is data partitioned before it is sent to the reducer if no custom partitioner is defined in Hadoop?
Illustrate a simple example of the working of MapReduce.
What do you mean by data locality?
When is it not recommended to use MapReduce paradigm for large
What is shuffling and sorting in Hadoop MapReduce?
What is a partitioner and how the user can control which key will go to which reducer?
what are the main configuration parameters that user need to specify to run Mapreduce Job ?
What is the inputsplit in map reduce software?
Where sorting is done on mapper node or reducer node in MapReduce?
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