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Explain how can you check whether namenode is working beside using the jps command?


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More Hadoop General Interview Questions

What did mean by data-node?

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Explain how can you debug hadoop code?

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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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Explain Data Locality in Hadoop?

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What is data cleansing?

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What is JPS? Why is it used in Hadoop?

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How to add/delete a Node to the existing cluster?

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What is the default replication factor in Hadoop and how will you change it?

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Name the most common input formats defined in hadoop?

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Explain the difference between an inputsplit and a block?

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

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How ordering in hdfs is finished?

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