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What is the heartbeat used for?


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More Apache Hadoop Interview Questions

Is hadoop the future?

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How can one increase replication factor to a desired value in Hadoop?

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Why is Apache Spark faster than Apache Hadoop?

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Which data storage components are used by hadoop?

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What is the InputFormat ?

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How to configure hadoop to reuse JVM for mappers?

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How to change replication factor of files already stored in HDFS?

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In which location Name Node stores its Metadata and why?

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Explain the difference between gen1 and gen2 hadoop with regards to the namenode?

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what is SPF?

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What is the relation between job and task in hadoop?

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What do shuffling do?

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