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Database Systems: Design, Implemen...

12th Edition
Carlos Coronel + 1 other
Publisher: Cengage Learning
ISBN: 9781305627482

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Chapter
Section
BuyFindarrow_forward

Database Systems: Design, Implemen...

12th Edition
Carlos Coronel + 1 other
Publisher: Cengage Learning
ISBN: 9781305627482
Chapter 14, Problem 10RQ
Textbook Problem
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What is the difference between a name node and a data node in HDFS?

Program Plan Intro

Hadoop Distributed File System (HDFS):

  • Hadoop Distributed File System (HDFS) is the primary data storage systems usually used by the Hadoop applications.
  • It was developed as an infrastructure for the Apache Nutch web search engine project and now it is an Apache Hadoop subproject.
  • It includes a NameNode and DataNode architecture to implement a distributed file system that is capable of providing high-performance access to data across Hadoop clusters.

Explanation of Solution

Difference between NameNode and DataNode:

NameNode DataNode
NameNode is used to store Metadata. DataNode is used to store actual data.
In a cluster, there will be only one NameNode...

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