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What is a block and block scanner in HDFS?


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More Apache Hadoop Interview Questions

What is the difference between a Hadoop and Relational Database and Nosql?

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How is hadoop different from other data processing tools?

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What is structured data?

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

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What infrastructure do we need to process 100 TB data using Hadoop?

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What is the sequencefileinputformat in hadoop?

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What is Input Split in hadoop?

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What is hbase in hadoop?

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How can one increase replication factor to a desired value in Hadoop?

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Which one is default InputFormat in Hadoop ?

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What is a namenode? How many instances of namenode run on a hadoop cluster?

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Mention what is the number of default partitioner in Hadoop?

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