What is HDFS ? How it is different from traditional file systems?


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More Apache Hadoop Interview Questions

What is output format in hadoop?

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What is the difference between HDFS and NAS ?

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What is the difference between Hadoop and Traditional RDBMS?

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Command to format the NameNode?

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What is a 'block' in HDFS?

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How can we check whether namenode is working or not?

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Can we do online transactions(oltp) using hadoop?

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How the Client communicates with HDFS?

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Can the balancer be run while Hadoop is in use?

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What is a spill factor with respect to the ram?

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What is oozie in hadoop?

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Explain the features of fully distributed mode?

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