How many instances of JobTracker can run on a Hadoop Cluser?


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More Apache Hadoop Interview Questions

Explain why do we need hadoop?

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How do you define "block" in HDFS?

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

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What are the characteristics of hadoop framework?

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What are the default configuration files that are used in hadoop?

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How to enable trash/recycle bin in hadoop?

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How does an hadoop application look like or their basic components?

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How would you use Map/Reduce to split a very large graph into smaller pieces and parallelize the computation of edges according to the fast/dynamic change of data?

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What do slaves consist of?

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Which command is used for the retrieval of the status of daemons running the hadoop cluster?

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Explain a simple Map/Reduce problem.

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On what basis Namenode will decide which datanode to write on?

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