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
Content preview from Pattern-Oriented Software Architecture: A Pattern Language for Distributed Computing, 4th Volume
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Chapter 10. Distribution Infrastructure
Zhaoqing power converter station for high-voltage direct-current transmission line, Guangdong province, China Siemens press picture, © Siemens AG
It is hard to meet complex distributed system requirements such as scalability and dependability if only the application, host operating system, and network perspectives are considered. The application should focus on 'business logic' rather than 'plumbing,' and the operating system and network should focus on endsystem resource management and communication protocol processing respectively. To address other key perspectives, this chapter describes twelve patterns pertaining to middleware, which is distribution infrastructure software that shields applications from many inherent and accidental complexities of operating systems and networks.
Several trends influence the way we conceive and construct distributed systems [ScSc01]:
Information technology is becoming commoditized: hardware and software are generally getting more powerful, cheaper, and better at a relatively predictable rate. The commoditization of hardware, such as CPUs and storage devices, and networking elements such as IP routers and WiFi devices, has been underway for decades. More recently, software is being commoditized due to the maturation of object-oriented languages such as Java, C#, and C++, and commercial-of-the-shelf operating ...
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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.