May 2007
Intermediate to advanced
637 pages
14h 8m
English
book
Pattern-Oriented Software Architecture: A Pattern Language for Distributed Computing, 4th Volume
by Frank Buschmann, Kevlin Henney, Douglas C. Schmidt
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Chapter 2. On Distributed Systems
A distributed system is one in which the failure of a computer you didn't even know existed can render your own computer unusable.
Leslie Lamport
A distributed system is a computing system in which a number of components cooperate by communicating over a network. The explosive growth of the Internet and the World Wide Web in the mid1990s moved distributed systems beyond their traditional application areas, such as industrial automation, defense, and telecommunication, and into nearly all domains, including e-commerce, financial services, health care, government, and entertainment. This chapter describes the key characteristics and challenges of developing distributed systems and presents several key software technologies that have emerged to resolve these challenges.
Benefits of Distribution
Most computer software traditionally ran in stand-alone systems, in which the user interface, application 'business' processing, and persistent data resided in one computer, with peripherals attached to it by buses or cables. Few interesting systems, however, are still designed in this way. Instead, most computer software today runs in distributed systems, in which the interactive presentation, application business processing, and data resources reside on loosely coupled computing nodes and service tiers connected together by networks.
The following diagram illustrates a three-tier distribution architecture for a warehouse management process control system, whose ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.