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What is shuffling and sorting in Hadoop MapReduce?
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More MapReduce Interview Questions
What is map/reduce job in hadoop?
Explain the input type/format in mapreduce by default?
What are the primary phases of a Reducer?
how indexing in HDFS is done?
What is heartbeat in hdfs?
What is the utility of using Writable Comparable Custom Class in Map Reduce code?
What is the best way to copy files between HDFS clusters?
Clarify what is shuffling in map reduce?
Explain what does the conf.setMapper Class do in MapReduce?
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