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Developing a MapReduce Application?
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More MapReduce Interview Questions
What is heartbeat in hdfs? Explain.
Define speculative execution?
What combiners is and when you should use a combiner in a MapReduce Job?
What is OutputCommitter?
When should you use sequencefileinputformat?
Clarify what is shuffling in map reduce?
What is a partitioner and how the user can control which key will go to which reducer?
Define Writable data types in Hadoop MapReduce?
Where is the output of Mapper written in Hadoop?
Why do we need MapReduce during Pig programming?
What is MapReduce?
What is LazyOutputFormat in MapReduce?
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