What is Disk Balancer in Apache Hadoop?


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More Apache Hadoop Interview Questions

Explain the use of .mecia class?

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How does a namenode handle the failure of the data nodes?

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Is it possible to provide multiple inputs to hadoop? If yes, explain.

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Define tasktracker.

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What is the problem with small files in Apache Hadoop?

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What is the difference between rdbms and hadoop?

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What is a JobTracker in Hadoop? How many instances of JobTracker run on a Hadoop Cluster?

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Mention what is the number of default partitioner in Hadoop?

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Why is hadoop faster?

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What is high availability in hadoop?

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Explain a simple Map/Reduce problem.

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Is it necessary to write jobs for hadoop in the java language?

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