What are the main components of a Hadoop Application?


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More Apache Hadoop Interview Questions

What will you do when NameNode is down?

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What is the difference between SQL and NoSQL?

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What does /var/hadoop/pids do?

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Mention what is the use of Context Object?

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Which command is used for the retrieval of the status of daemons running the hadoop cluster?

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What is formatting of the dfs?

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What is safe mode in Hadoop?

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Explain what happens in textinformat ?

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Explain how can we change the split size if our commodity hardware has less storage space?

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What should be the ideal replication factor in Hadoop Cluster?

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Have you ever used Counters in Hadoop. Give us an example scenario?

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What is hbase in hadoop?

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