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What does name-node mean in hadoop?


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More Hadoop General Interview Questions

Explain how Hadoop cluster hardware planning and provisioning is done?

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What is tasktracker in hadoop?

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How often DataNode send heartbeat to NameNode in Hadoop?

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What is partitioning?

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What is single node cluster in Hadoop? for what all purposes Hadoop run on a single node cluster?

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Can you explain record reader?

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Compare Apache Hadoop and Apache Spark?

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Is it possible to rename the output file, and if so, how?

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Define a udf?

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What are 'slaves' and 'masters' in Hadoop?

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Clarify what is sequence file input format?

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How is security achieved in Hadoop?

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