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What does name-node mean in hadoop?


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More Hadoop General Interview Questions

What is Slot in Hadoop v1? Why was it removed from Hadoop v2?

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List some use cases where classification machine learning algorithms can be used.

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What do you understand by standalone (or local) mode?

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Hadoop achieves parallelism by dividing the tasks across many nodes, it is possible for a few slow nodes to rate-limit the rest of the program and slow down the program. What mechanism Hadoop provides to combat this?

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What are the differences between hadoop 1 and hadoop 2?

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Explain what is storage and compute nodes?

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What is the purpose of context object?

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

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Why is Data Block size set to 128 MB in Hadoop?

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Name the operating system(s) which are supported for production hadoop deployment?

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Compare Hadoop 2 and Hadoop 3?

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Why aggregation cannot be done in Mapper?

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