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What is the key difference between NameNode and DataNode in Hadoop?


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More Hadoop General Interview Questions

Explain is it possible to search for files using wildcards?

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What happens if number of reducers are 0?

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Can you explain logistic regression?

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What is a commodity hardware? Does commodity hardware include RAM?

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What is partitioning?

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Mention what job does the conf class do?

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What is the role of the secondary namenode?

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Can hadoop handle streaming data?

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Can we deploy job tracker other than name node?

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What does hadoop-metrics.properties file do?

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What is heartbeat in hadoop?

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What are the limitations of Hadoop?

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