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What is a record reader?


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More Hadoop General Interview Questions

What are the Hadoop features extended to its eco-system components ?

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What jobtracker is in hadoop? What are the activities followed by hadoop?

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Explain what is a sequence file in hadoop?

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What is TextInputFormat in Hadoop?

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Ideally what should be replication factor in a Hadoop cluster?

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What is the use of cloudera?

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Why aggregation cannot be done in Mapper?

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What happen if number of reducer is set to 0 in Hadoop?

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Can hadoop replace relational database?

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Can we deploy job tracker other than name node?

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Where is hadoop-env.sh file present?

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Compare Hadoop and RDBMS?

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