What basic structures should be built for website construction?
Today, let’s talk about what basic structures should be built for website construction?
one, HTML Static
We all know that the most efficient and least consumed is purely static HTML pages, so we make the pages on the website use static pages as much as possible.
2. Separation of picture servers
Everyone knows, for Web For servers, no matter Apache、IIS Or other containers, pictures are the most resource-consuming, so it is necessary for us to separate pictures from pages. This is a strategy that large websites basically adopt. They all have independent, or even many image servers.
3. Database cluster and library table hashing
Large websites have complex applications, and these applications must use databases. When faced with a large number of accesses, the bottleneck of the database will soon appear. At this time, a database will soon be unable to meet the application, so we need to use database clusters or library table hashing.
In terms of database clusters, many databases have their own solutions. Oracle、Sybase There are good plans, commonly used MySQL Provided Master/Slave A similar solution, what kind of solution did you use DB， Just refer to the corresponding solution to implement it.
The database cluster mentioned above is adopted in terms of architecture, cost and expansion. DB Type limitations, so we need to consider improving the system architecture from the application perspective, library table hashing is the common and most effective solution.
We install business and application or function modules in the application to separate the database. Different modules correspond to different databases or tables, and then use a certain strategy to make a smaller database hashing a certain page or function, such as user tables, according to user ID Table hashing can be performed, so that the performance of the system can be improved at a low cost and has good scalability.
4. Cache
Those who have come into contact with the term cache have all come into contact with technology, and cache is used in many places.Caching in website architecture and website development is also very important.Here we will first talk about the two most basic caches.Advanced and distributed caches are described later.
Architectural cache, Apache Anyone who is familiar with it can know Apache Provides its own cache module, and can also use additional Squid The module is cached, both of which can be effectively improved Apache access response capability.
Website ProgramsDevelopment cache, Linux Provided on Memory Cache It is a commonly used cache interface, which can be used in web Used in development, for example Java Can be called during development MemoryCache Some data is cached and communicated, and some large communities use such a architecture.Also, in use web When developing languages, various languages basically have their own cache modules and methods. PHP have Pear of Cache Module, Java That's more,. net Not very familiar, I believe there must be.
5. Mirror
The mirror is largeWebsite constructionCommonly used methods to improve performance and data security, mirroring technology can solve the differences in user access speed caused by different network access providers and regions, such as ChinaNet and EduNet The differences between them have prompted many websites to build mirror sites within the education network, and the data is updated regularly or in real time.In terms of mirroring details technology, we will not explain it too deeply, and there are many professional ready-made solutions and products to choose from.There are also cheap ideas for implementing software, such as Linux On rsync etc.
6. Load balancing
Load balancing will be a high-end solution for large websites to solve high-load access and large number of concurrent requests.
Load balancing technology has been developing for many years, and there are many professional service providers and products to choose from. I have personally been exposed to some solutions, including two architectures for your reference.(1) Hardware layer four switching.(2) Software layer four exchange.
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TAG Label:Website construction
