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What is Row Key?


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More Apache Hadoop Interview Questions

Define a commodity hardware? Does commodity hardware include ram?

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Is client the end user in HDFS?

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What is a task instance in hadoop? Where does it run?

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Hadoop Libraries and Utilities and Miscellaneous Hadoop Applications?

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What happens in a textinputformat?

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what are Task Tracker and Job Tracker?

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How to resolve ioexception: cannot create directory, while formatting namenode in hadoop?

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What are the most commonly defined input formats in Hadoop?

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Can we have multiple entries in the master files?

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What is a Combiner?

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Does the hdfs client decide the input split or namenode?

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What will you do when NameNode is down?

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