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What is the role of the namenode?


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More Hadoop General Interview Questions

Why do the nodes are removed and added frequently in a hadoop cluster?

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Which port does SSH work on?

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How can you native libraries be included in yarn jobs?

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What is Erasure Coding in Hadoop?

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Explain what is a sequence file in hadoop?

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What happen if a datanode loses network connection for a few minutes?

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Comparison between Secondary NameNode and Checkpoint Node in Hadoop?

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What are the Hadoop features extended to its eco-system components ?

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Can we write map reduce program in other than java programming language. How?

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How will you write a custom partitioner for a Hadoop job?

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How is the splitting of file invoked in Hadoop ?

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What is the use of recordreader in hadoop?

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