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What is a Backup node in Hadoop?


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More Hadoop General Interview Questions

What happens if you don?t override the mapper methods and keep them as it is?

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What is a combiner in hadoop?

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What is difference between secondary namenode, checkpoint namenode & backupnode?

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Explain Data Locality in Hadoop?

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Explain what happens when hadoop spawned 50 tasks for a job and one of the task failed?

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What does name-node mean in hadoop?

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Can you explain edge nodes in hadoop?

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What are the hadoop configuration files at present?

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What are the major differences between Hadoop 2 and Hadoop 3?

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

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If we want to copy 10 blocks from one machine to another, but another machine can copy only 8.5 blocks, can the blocks be broken at the time of replication?

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What is a Heartbeat in Hadoop?

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