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What is the difference between Gen1 and Gen2 Hadoop with regards to the Namenode?


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More Apache Hadoop Interview Questions

Did you ever built a production process in hadoop ? If yes then what was the process when your hadoop job fails due to any reason?

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What is inputformat in hadoop?

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Should we use RAID in Hadoop or not?

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How many instances of tasktracker run on a hadoop cluster?

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Define a combiner?

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

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Define a job tracker?

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Define fault tolerance?

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Main Components of Hadoop?

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What is 'Key value pair' in HDFS?

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Explain the overview of hadoop history breifly?

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What is partioner in hadoop? Where does it run,mapper or reducer?

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