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What is heartbeat in hdfs? Explain.
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More MapReduce Interview Questions
What combiners are and when you should utilize a combiner in a map reduce job?
What is Reduce only jobs?
What is shuffling in mapreduce?
Clarify what is shuffling in map reduce?
Illustrate a simple example of the working of MapReduce.
What does a 'MapReduce Partitioner' do?
what is the Hadoop MapReduce APIs contract for a key and value class?
What is the default input type in MapReduce?
What is difference between an input split and hdfs block?
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What is MapReduce?
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