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What is a namenode?


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More Hadoop General Interview Questions

What are the functionalities of jobtracer?

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What is Combiner in Hadoop?

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

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How can one check whether NameNode is working or not?

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What is tasktracker in hadoop?

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What happens if one hadoop client renames a file or a directory containing this file while another client is still writing into it?

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Mention how many inputsplits is made by a hadoop framework?

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is there a standard procedure to deploy hadoop?

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What are the most common InputFormats in Hadoop?

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What kind of hardware is best for hadoop?

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How to create the directory when name node is in safe mode?

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What is a udf?

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