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How to restart NameNode or all the daemons in Hadoop?


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More Hadoop General Interview Questions

Why is Data Block size set to 128 MB in Hadoop?

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How do you overwrite replication factor?

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Are there any special requirements for namenode?

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Is there another way to check whether Namenode is working?

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What do you understand by standalone (or local) mode?

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When we send a data to a node, do we allow settling in time, before sending another data to that node?

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What happens if one hadoop client renames a file or a directory containing this file while another client is still writing into it?

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What is NameNode? How NameNode tackle Datanode failures in Hadoop?

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List Hadoop’s three configuration files?

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What is a single point of failure in Hadoop 1 and how is it resolved in Hadoop 2?

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Define “speculative execution” in hadoop?

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When and how to create hadoop archive?

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