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What is RecordReader in a Map Reduce?


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More MapReduce Interview Questions

Write a Mapreduce Program for Character Count ?

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What are the four essential parameters of a mapper?

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Does mapreduce programming model provide a way for reducers to communicate with each other? In a mapreduce job can a reducer communicate with another reducer?

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What are the main components of MapReduce Job?

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What counter in Hadoop MapReduce?

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What is the best way to copy files between HDFS clusters?

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Detail description of the Reducer phases?

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how Hadoop is different from other data processing tools?

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How does MapReduce framework view its input internally?

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What is sqoop in Hadoop ?

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What do you know about nlineinputformat?

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What is the job of blend () and repartition () in Map Reduce?

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