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How does NameNode tackle DataNode failures?


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More Apache Hadoop Interview Questions

Explain how is hadoop different from other data processing tools?

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Explain the features of fully distributed mode?

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What happens to a NameNode that has no data?

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Can hbase run without hadoop?

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How can I restart namenode?

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What are different hdfs dfs shell commands to perform copy operation?

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Give the use of the bootstrap panel.

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Why we cannot do aggregation (addition) in a mapper? Why we require reducer for that?

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Can we have multiple entries in the master files?

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Is hadoop the future?

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What is a block and block scanner in HDFS?

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Knox and Hadoop Development Tools?

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