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Is reduce-only job possible in Hadoop MapReduce?
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How to compress mapper output in Hadoop?
What is Shuffling and Sorting in a MapReduce?
Does Partitioner run in its own JVM or shares with another process?
Which Sorting algorithm is used in Hadoop MapReduce?
Explain how mapreduce works.
What is the Reducer used for?
What happen if the number of the reducer is 0 in MapReduce?
Explain the features of Apache Spark because of which it is superior to Apache MapReduce?
Can we set the number of reducers to zero in MapReduce?
What happens when the node running the map task fails before the map output has been sent to the reducer?
Explain what does the conf.setMapper Class do in MapReduce?
Which one will you decide for an undertaking – Hadoop MapReduce or Apache Spark?
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