Why is Apache Spark faster than Apache Hadoop?

882

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What are the main features and Characteristics of Hadoop which makes it the most popular and powerful Big Data tool?

536

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What are the configuration files in Hadoop?

581

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Compare Apache Hadoop and Apache Spark?

482

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What are the different modes in which we can configure/install Hadoop?

589

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Explain how Hadoop cluster hardware planning and provisioning is done?

605

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How to create a user in Hadoop?

540

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

533

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What is single node cluster in Hadoop? for what all purposes Hadoop run on a single node cluster?

579

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How to specify more than one path for storage in Hadoop?

561

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

643

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What is JPS? Why is it used in Hadoop?

585

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What is the key difference between NameNode and DataNode in Hadoop?

533

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What is Small File Problem in Hadoop? How can it be resolved?

596

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Ideally what should be replication factor in a Hadoop cluster?

557

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