Is it necessary to write jobs for hadoop in the java language?


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More Apache Hadoop Interview Questions

What are the site-specific configuration files in Hadoop?

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What is the purpose of RawComparator interface?

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Why we cannot do aggregation (addition) in a mapper? Why we require reducer for that?

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Explain the features of fully distributed mode?

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What if a namenode has no data?

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Does hadoop always require digital data to process?

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What hadoop does in safe mode?

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How can you connect an application

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In which location Name Node stores its Metadata and why?

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What is hbase in hadoop?

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What are combiners and its purpose?

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What is the Use of SSH in Hadoop ?

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