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What alternate way does HDFS provides to recover data in case a Namenode


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More Apache Hadoop Interview Questions

Hadoop Libraries and Utilities and Miscellaneous Hadoop Applications?

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What are the basic available commands in Hadoop sqoop ?

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Explain how do ‘map’ and ‘reduce’ works?

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Explain the shuffle?

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If a data Node is full how it's identified?

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Explain how can we change the split size if our commodity hardware has less storage space?

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Define streaming?

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

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What is configuration of a typical slave node on Hadoop cluster? How many JVMs run on a slave node?

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What platform and java version are required to run hadoop?

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What happens to job tracker when namenode is down?

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what are Task Tracker and Job Tracker?

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