How can I restart namenode?


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More Apache Hadoop Interview Questions

How blocks are distributed among all data nodes for a particular chunk of data?

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What are channel selectors?

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Explain the master class and the output class do?

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Where is the Mapper Output intermediate kay-value data stored ?

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What is nlineoutputformat?

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Explain the Job OutputFormat?

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what is meaning Replication factor?

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Explain Erasure Coding in Apache Hadoop?

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how would you modify that solution to only count the number of unique words in all the documents?

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What are the modules that constitute the Apache Hadoop 2.0 framework?

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What is rack-aware replica placement policy?

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Is map like a pointer?

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