web architecture for dummies

information database, the entire product display, shopping, user system generated by the data are concentrated in the business database, convenient unified management. User access to the data is retained in the access information database, in order to facilitate user access to traffic data mining and traffic analysis;4, Infrastructure layer : For the overall construction of product display system to provide the most basic facilities, including server, network and other hardware equipment. Also

-end server processes the user's request and saves the user's session or caches, then when the user sends the request again, there is no guarantee that the request will still be processed by the server that saved its session or cache, if it is handled by another server. The previous session or cache could not be found.Workaround 1:You can modify the task assignment policy for the reverse proxy server, which is more appropriate for the user IP as the identity. The same user IP is handled by the s

Core elements of a large web site: 1, performance 2, availability 3, Scalability 4, scalability 5, securityWebsite performance optimization: Web front-end 1, reduce HTTP request 2, use browser cache 3, enable compression 4, CSS top, JS put the bottom 5, CDN Acceleration 6, Reverse proxy (squid, varianish) 7, DNS dynamic resolutionServer 1, distributed Cache 2, asynchronous operation 3, using the clusterhttp

Preface: February 2012 Zhang Yichun (AGENTZH) gave a lecture on the theme of the "Nginx bonding environment" in Tech-club at an offline party, analyzing the trends of the enterprise Web architecture, That is, a seemingly complete web application, often in the background is split into multiple services, implemented by a number of departments, and each departmen

Read "Large Web site Technology architecture: Core Principles and Case studies" chapters V, combined with our system, to analyze how to increase the corresponding functions, improve the system usability and ease of use.These three chapters focus on the usability, scalability and scalability of the site.　　High-availability architectures are foolproof. It is almost impossible to ensure that a site is always f

which link response time is unreasonable, exceed expectations, and then examine the monitoring data to analyze whether the main factors affecting performance are memory, disk, network, or CPU. Is the code problem or the architecture design unreasonable, or the system resources are indeed insufficient.(2) Performance optimizationAfter locating the specific cause of performance problems, we need to optimize the performance, according to the site hierar

ObjectiveTwo books have been read recently:1, Hae Teacher's "large-scale website technology Architecture core principle and Case analysis"2, Zeng Xianjie Teacher's "large-scale website system and Java middleware practice"Saw and combined with their current project to think, feel benefited, benefited a lot, their understanding of large web site has deepened a lot, the following to share their own study notes

Web site architecture uses nobackend this schemeNow the application development model attaches great importance to the back-end of the building, and in fact we have been to simplify the back-end development for many years of work, so brother even founder Li Chao for the current more UX-oriented environment, proposed a different solution--nobackend, priorityPHP TrainingFront-end development.This means that

Original: Web application extension Series (1): Architecture ChapterIn this article, I'll try to cover some of the architectural issues that you might encounter with Web App extensions or performance tuning.First, let's unify the concepts of some nouns or projects, and I'll list some of the issues that you might encounter when extending a

Internet web site and most enterprise management software is the same as the use of B/s architecture model, but the large public website b/s architecture will be more complex, the requirements of the architects more high, today I would like to chat on my blog on the website I designed b/s technical structure.Whether it is the B/s

The web three-tier architecture refers to: > User Interface layers (UI layer) > Business logic layers (bussiness layer) > Persistence layer About business logic and user interfacesIn the early web development, because the business is relatively simple, there is no three-tier division. The presentation of user data and the receipt, encapsulat

A recent study of a Web architecture solution suitable for team development, which is suitable for division and collaboration and has a certain scalability, suitable for different database needs, so I looked up some information, the initial concept of a set of structure, please advise you a lot. The origin of the problem A recent study of a Web

7.2192.168.1.203VARNISH1 Centos 7.2192.168.1.208VARNISH2 Centos 7.2192.168.1.209LAMP1 Centos 6.5192.168.1.101LAMP2 Centos 6.5192.168.1.102Static_server1 Centos 7.2192.168.1.205Static_server2 Centos 7.2192.168.1.206Final effect:650) this.width=650; "src=" https://s2.51cto.com/wyfs02/M01/8D/6D/wKioL1icKnuj4tcBAAGNb-UWFYg034.jpg "title=" b.jpg "alt=" Wkiol1icknuj4tcbaagnb-uwfyg034.jpg "/>650) this.width=650; "src=" https://s2.51cto.com/wyfs02/M02/8D/6D/wKioL1icKqyTF1PVAAF2HAKO6uc458.jpg "title=" b

After a week of research and study, see the domestic H +, Hui, etc., foreign paperdashboardpro, make, Metronic Bootstrap, and finally selected with a light weight, suitable for the Chinese, The UI from Dtcms's background management UI to transform the common Rights management web side of auspicious gala.js+css+ picture files are as followsA new Menu.ashx file is added to output all the menus that the current user right can view.The new main.aspx file

I participated in an e-commerce project at the front-end time and admired the system architecture. Here we will share with you the web layer, business layer, and persistence layer. The web layer uses velocity + turbine. velocity, which is equivalent to JSP. Compared with JSP, it is better to separate the display function (in fact, because the velocity language

; Multiple from library for data Select)6) CDN AccelerationAdd a layer of reverse proxy server and CDN Accelerator in front of load balancing, and return some cached data to the server early so that the page reacts fasterCDN Accelerator--Reverse proxy--load Balancer Scheduler---> (Multiple consuming programs distributed deployment)---> External distributed cache---> Database server and File server docking7) Distributed database and Distributed File serverWhen the amount of data in the database i

: cd C:\Program files\magnolia- 4.2 3 \apache-tomcat- 5.5 27 \bin Enter Magnolia_control.bat start and press ENTER. Magnolia reports the start-up message in a new Tomcat window. If the startup fails, you can find the reason in the report. Refer to Troubleshooting to resolve the issue. In a successful boot, the last row is displayed: info:server Startup in 12345 Ms

limit of a single machine, The advantage is to use a heartbeat mechanism in time to replace with another cache machine, at that time we use 120G of large memory, benefiting from the project business scale limitations, otherwise when the machine memory is full when it is more embarrassing, so do a large website or use it cautiously, after all this is also we have done some to improve the performance of the attempt. 2: The pattern of fragmentation This pattern is still heavily used in large

web| Server | architecture | mail server in ' system backup ', as shown in Figure 10, you can view the details of a previous backup, or you can delete a previous backup, you can choose ' immediate backup ' or ' update backup ' to back up all previous content, or you can set up an ' incremental backup ' or ' no backup ' on a one-day basis. Figure 10 In ' view of events ', we select the time-named event fi

Today read the "Large Web site technology architecture," the third chapter, this chapter mainly explains the core architectural elements of large-scale website, and summarizes the corresponding implementation methods.In addition to the system functional requirements, software architecture also needs to focus on performance, availability, scalability, scalability,