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What is a udf?


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More Hadoop General Interview Questions

Mention what does the text input format do?

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How would you check whether your NameNode is working or not?

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What is the hadoop-core configuration?

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What is TextInputFormat in Hadoop?

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What does rack awareness mean?

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What is the difference between namenode and datanode in hadoop?

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Which scala library is used for functional programming?

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In hadoop_pid_dir, what does pid stands for?

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Explain the common input formats in hadoop?

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