what is a datanode?


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More Apache Hadoop Interview Questions

In which location Name Node stores its Metadata and why?

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How to write a Custom Key Class?

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How to enable/configure the compression of map output data in hadoop?

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How to resolve small file problem in hdfs?

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What do masters consist of?

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

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Explain Erasure Coding in Apache Hadoop?

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

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Why the name ‘hadoop’?

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Define a datanode?

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What is Hadoop streaming?

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Which are the three main hdfs-site.xml properties?

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