What is the functionality of jobtracker in hadoop?


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More Apache Hadoop Interview Questions

Define a daemon?

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What is zookeeper in hadoop?

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What is output format in hadoop?

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What is the communication channel between client and namenode/datanode?

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How to exit the vi editor?

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How to come out of the insert mode?

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How to resolve IOException: Cannot create directory

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Explain a simple Map/Reduce problem.

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How to restart Namenode?

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Input Split & Record Reader and what they do?

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

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