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How can one check whether NameNode is working or not?


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More Hadoop General Interview Questions

What are the main features and Characteristics of Hadoop which makes it the most popular and powerful Big Data tool?

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Explain what is sequencefileinputformat?

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What is the purpose of context object?

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

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What does the high availability of a name-node means?

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List Hadoop’s three configuration files?

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Can you explain record reader?

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What is a single point of failure in Hadoop 1 and how is it resolved in Hadoop 2?

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What are the tools used in big data?

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Did you ever ran into a lop sided job that resulted in out of memory error, if yes then how did you handled it ?

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What are the side data distribution techniques?

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Why does one remove or add nodes in a Hadoop cluster frequently?

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