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


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More Apache Hadoop Interview Questions

What do sorting do?

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What does job conf class do?

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What is the difference between SQL and NoSQL?

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What if rack 2 and datanode fails?

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What is the difference between Gen1 and Gen2 Hadoop with regards to the Namenode?

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How to resolve IOException: Cannot create directory

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Why password is needed in ssh localhost?

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What are the network requirements for using hadoop?

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How you can contact your client everyday ?

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Explain what is sqoop in Hadoop ?

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Where do you specify the Mapper Implementation?

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Why do we need a password-less ssh in fully distributed environment?

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