What does /etc /init.d do?


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More Apache Hadoop Interview Questions

How many instances of JobTracker can run on a Hadoop Cluser?

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explain Metadata in Namenode?

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Where is the Mapper Output stored?

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Explain a simple Map/Reduce problem.

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Explain what is sqoop in Hadoop ?

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How is security achieved in Apache Hadoop?

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How is the option in Hadoop to skip the bad records?

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Explain the features of fully distributed mode?

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How to Administering Hadoop?

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What do sorting do?

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How would you use Map/Reduce to split a very large graph into smaller pieces and parallelize the computation of edges according to the fast/dynamic change of data?

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What is column families? What happens if you alter the block size of ColumnFamily on an already populated database?

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