Q.4(a) What is Apache Hadoop?(b) Describe the general MapReduce algorithm, split it into phases. For eachphase include:i. who is responsible (framework/programmer/customisable)ii. what the phase doesiii.phase input(s)iv. phase output(s)(c) Describe the Hadoop Distributed File System (HDFS) architecture.

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Answered: Apache Hadoop?

Engineering

Computer Science

Apache Hadoop?

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

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Q.4
(a) What is Apache Hadoop?
(b) Describe the general MapReduce algorithm, split it into phases. For each
phase include:
i. who is responsible (framework/programmer/customisable)
ii. what the phase does
iii.
phase input(s)
iv. phase output(s)
(c) Describe the Hadoop Distributed File System (HDFS) architecture.

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