What is the difference between Apache Hadoop and RDBMS?

811

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How is security achieved in Apache Hadoop?

912

---

What is Apache Hadoop?

860

---

What is a “Distributed Cache” in Apache Hadoop?

784

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What is the problem with small files in Apache Hadoop?

783

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What is Rack Awareness in Apache Hadoop?

812

---

Explain Erasure Coding in Apache Hadoop?

756

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What is Disk Balancer in Apache Hadoop?

896

---

What is a speculative execution in Apache Hadoop MapReduce?

795

---

What are the modes in which Apache Hadoop run?

800

---

What is Safemode in Apache Hadoop?

735

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What are the different methods to run Spark over Apache Hadoop?

718

---

Why is Apache Spark faster than Apache Hadoop?

843

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

489

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What are the configuration files in Hadoop?

541

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