What does a split do?


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More MapReduce Interview Questions

What is the difference between a MapReduce InputSplit and HDFS block?

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How can you add the arbitrary key-value pairs in your mapper?

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What is heartbeat in hdfs?

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How many times combiner is called on a mapper node in Hadoop?

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What is the difference between RDBMS with Hadoop MapReduce?

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Define Writable data types in MapReduce?

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what is NameNode in Hadoop?

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

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What is the InputSplit in map reduce ?

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Can there be no Reducer?

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List out Hadoop's three configuration files?

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Write a short note on the disadvantages of mapreduce

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