What is a Secondary Namenode? Is it a substitute to the Namenode?


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More Apache Hadoop Interview Questions

Does this lead to security issues?

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How Mapper is instantiated in a running job?

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What is the problem with small files in Apache Hadoop?

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How to exit the vi editor?

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In which location Name Node stores its Metadata and why?

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What is Your Cluster size ?

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

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did you maintain the hadoop cluster in-house or used hadoop in the cloud?

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What problems can be addressed by using Zookeeper?

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What does the command mapred.job.tracker do?

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How is HDFS fault tolerant?

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What is the function of ApplicationMaster?

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