system architecture book

center GIS) and databases. For the performance and robustness of the entire system, our servers are divided into three subsystems: app server, Gateway server, and data server, APP server: it can process various client connections and isolate the impact of various client conditions on the entire server. Gateway server: The Gateway server is mainly used to connect devices. Different devices can convert the protocols of devices into internal protocols.

I have also introduced the evolution of large website architectures.ArticleFor example, livejournal and eBay are all worthy of reference. However, they feel more about the results of each evolution, without a detailed explanation of why such an evolution is required, coupled with the recent feeling that many students are hard to understand why a website requires such complex technologies, with the idea of writing this article, this article will describe a typical

This article from: http://www.blogjava.net/BlueDavy/archive/2008/09/03/226749.html There have been some articles about the evolution of large website architectures, such as livejournal and eBay, which are very worthy of reference. However, they feel more about the results of each evolution, without a detailed explanation of why such an evolution is required, coupled with the recent feeling that many students are hard to understand why a website requires such complex technologies, with the idea

submitting an order. If an order has been submitted successfully, indicate the end of the activity and enter the second Kill end page. In fact, the number of orders can only have one, in order to reduce the load pressure of the next single page server, you can control the entry to the next single page. Only a few users can enter the next single page, other users directly into the second Kill end page. (Pre-check logic) to check the number of orders that have been processed on this machine: If m

Organized from the Internet, thanks to the original author!1.iOS is based on UNIX systems, so it's much better from the stability of the system than the products of other operating systems.The 2.iOS system architecture is divided into four tiers, from top to bottom: the touch layer (Cocoa touch layers), the media layer, the core service layer, and the core OS lay

ArticleDirectory Description What is the software architecture? System Architecture What is architecture? Next Article Content preview Description Because I have summarized and learned these technologies, the mistakes are inevitable. With the technical exchange mentality, I hope you can give m

Original article: http://www.csdn.net/article/2010-07-26/277273 Following the successful holding of the first Tup event, the second Tup event jointly planned by csdn and programmer magazine arrived on schedule in the hongyun 2 Hall of the Beijing liting Huayuan Hotel, this activity focuses on the hot social networks, Weibo architectures, and real-time search fields with the Web 2.0 technology as the topic. Provides a fully open communication platform for participants on the technology, product d

ArticleDirectory I. Opening Ii. Summary Iii. Outline Iv. Introduction to singleton Mode V. Related application scenarios Vi. Summary VII. Series progress 8. next announcement I. Opening In fact, I did not intend to explain some design patterns in the system architecture separately, because many good friends are also concerned about this content, so I want to understand wha

Document directory Service-oriented value (from the book of WCF programming) For the purpose of SOA, IBM says:The fundamental purpose of SOA is business agility. How to understand agility is understood from two aspects: first, it responds to this change in an appropriate period of time after the business changes are proposed; second, changes made by it can properly reflect business needs. Microsoft said:The specified tural concepts associated wit

The significance of system developmentRealizing autonomous pan-in learning mode the mobile learning system based on app has built a mobile classroom environment of anytime, anywhere and on demand, providing learners with open, convenient, personalized learning resources and application platform, realizing the ubiquitous learning way. Mobile learning to become a natural or spontaneous behavior, learners can