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  1. Categories >> Software >> Big Data >> Hadoop >> Hadoop General
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What is a udf?

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More Hadoop General Interview Questions

Give examples of some companies that are using Hadoop structure?

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What happen when namenode enters in safemode in hadoop?

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Can you give some examples of Big Data?

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Explain Data Locality in Hadoop?

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How many maps are there in a particular job?

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Give me examples of unstructured data?

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What are the modes in which Hadoop run?

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Explain what happens in text format?

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Ideally what should be the block size in hadoop?

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What is Mapper? How can we compress Mapper output in Hadoop?

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Explain some important features of hadoop?

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How to debug Hadoop code?

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