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What is Hadoop Map Reduce ?
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More MapReduce Interview Questions
What is the input type/format in MapReduce by default?
Define speculative execution?
Can there be no Reducer?
What happens when the node running the map task fails before the map output has been sent to the reducer?
What is the role of recordreader in hadoop mapreduce?
Why Hadoop MapReduce?
what happens when Hadoop spawned 50 tasks for a job and one of the task failed?
How data is spilt in Hadoop?
In MapReduce, ideally how many mappers should be configured on a slave?
What is the use of InputFormat in MapReduce process?
What is a Distributed Cache in Hadoop?
What is Counter in MapReduce?
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