What happens to a namenode, when job tracker is down?


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More Apache Hadoop Interview Questions

How Mapper is instantiated in a running job?

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Hadoop Libraries and Utilities and Miscellaneous Hadoop Applications?

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Can you explain how do ‘map’ and ‘reduce’ work?

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What are channel selectors?

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Define a job tracker?

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Does this lead to security issues?

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What are the port numbers of namenode, job tracker and task tracker?

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What does /var/hadoop/pids do?

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What happens to a NameNode that has no data?

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What is the meaning of the term "non-DFS used" in Hadoop web-console?

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What does /etc /init.d do?

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Why do we need a password-less ssh in fully distributed environment?

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