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Detail description of the Reducer phases?
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What do you mean by shuffling and sorting in MapReduce?
Explain about the basic parameters of mapper and reducer function
What do you understand by compute and storage nodes?
What is the sequence of execution of Mapper, Combiner, and Partitioner in MapReduce?
How many times combiner is called on a mapper node in Hadoop?
What is shuffling and sorting in mapreduce?
What combiners are and when you should utilize a combiner in a map reduce job?
Explain what you understand by speculative execution
Explain what is distributed cache in mapreduce framework?
What happens when the node running the map task fails before the map output has been sent to the reducer?
Explain what is “map” and what is "reducer" in hadoop?
What is the default value of map and reduce max attempts?
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