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What is a RecordReader in Hadoop MapReduce?


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More MapReduce Interview Questions

how to proceed to write your first mapreducer program?

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What happens when a datanode fails ?

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what job does the conf class do?

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what is "map" and what is "reducer" in Hadoop?

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What is mapper in map reduce?

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Compare Pig vs Hive vs Hadoop MapReduce?

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What is heartbeat in hdfs?

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When is it suggested to use a combiner in a MapReduce job?

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How to overwrite an existing output file during execution of mapreduce jobs?

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When is it not recommended to use MapReduce paradigm for large scale data processing?

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Is Mapreduce Required For Impala? Will Impala Continue To Work As Expected If Mapreduce Is Stopped?

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What is the difference between map and reduce?

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