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What is the key difference between NameNode and DataNode in Hadoop?


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More Hadoop General Interview Questions

Mention what daemons run on a master node and slave nodes?

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Compare Hadoop and RDBMS?

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What are some typical functions of job tracker in hadoop?

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How many InputSplits will be made by hadoop framework?

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What does jps command do in Hadoop?

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What is Rack Awareness? What is its need in Hadoop?

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What are the core methods of a Reducer?

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What does the mapred.job.tracker command do?

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Are there any special requirements for namenode?

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What are the core components of Hadoop?

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What type of data we should put in distributed cache? When to put the data in dc? How much volume we should put in?

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What happens in text format?

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