How does a namenode handle the failure of the data nodes?


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What is a “Distributed Cache” in Apache Hadoop?

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What exactly is hadoop?

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What do you know about nlineoutputformat?

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How many maximum jvm can run on a slave node?

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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 are the important differences between apache and hadoop?

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Which files are used by the startup and shutdown commands?

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What is the full form of fsck?

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

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