engineer scale vs architectural scale

Original: From the hundreds of architectural chart of the construction of large-scale web site experience (above)Directory (?) [-] WikiPedia Technology Architecture Facebook Architecture Yahoo Mail Architecture Twitter technology architecture Google APP Engine Technology architecture Amazon Technology Architecture Technology architecture of Youku Postscript Introduc

which architectural requirements have been solved by the framework. The requirements of the architecture must be given the highest priority when there is a need to address changes in security and deployment environments.5. Use the [test-driven][5] concept throughout the life cycleThis article should be summed up in a word is to write a good test before development. If the development process only considers the normal situation, then the late will be

user's location, the closest to the user, the best service status video server address to the user, So that users can get a fast video experience. This is the advantage that CDN brings, the nearest visit. Note: 1, this segment of the technology structure of Youku is organized here:/system-analysis/20110918/264936.html; 2, recommend a very good site:http://www.dbanotes.net/). From the hundreds of architectural plans to learn a bit of large-

This article is a technical summary of learning the architecture of large distributed websites. Provides a high-performance, highly available, scalable, scalable distributed Web site with an overview of the architecture and gives an architectural referenceThis article is a technical summary of learning the architecture of large distributed websites. A high-performance, highly available, scalable, extensible distributed Web site is described in the fra

This article is a technical summary of learning the architecture of large distributed websites. A high-performance, highly available, scalable, extensible distributed Web site is described in the framework, and an architectural reference is given. Part of the Reading notes, part of the personal experience summary. It has a good reference value to the large-scale distributed website architecture. (if it feel

This article is a technical summary of learning the architecture of large distributed websites. A high-performance, highly available, scalable, extensible distributed Web site is described in the framework, and an architectural reference is given. Part of the Reading notes, part of the personal experience summary. It has a good reference value to the large-scale distributed website architecture. (if it feel

location, the closest to the user, the best service status video server address to the user, So that users can get a fast video experience. This is the advantage that CDN brings, the nearest visit. Note: 1, this segment of the technology structure of Youku is organized here:/system-analysis/20110918/264936.html; 2, recommend a very good site:http://www.dbanotes.net/). From the hundreds of architectural plans to learn a bit of large-

　　The characteristics of a large-scale website system have been described earlier, and the architecture of a large Web site system is also an important part.The main challenges of large-scale web site technology are the three aspects of large users, high concurrency, and massive data. The formation of a large web site is like a big tree growth, experienced long time to hone, finally leafy, service others.In

This article is a technical summary of learning the architecture of large distributed websites. A high-performance, highly available, scalable, extensible distributed Web site is described in the framework, and an architectural reference is given. Part of the Reading notes, part of the personal experience summary. It has a good reference value to the large-scale distributed website architecture.This sharing

This article is a technical summary of learning the architecture of large distributed websites. A high-performance, highly available, scalable, extensible distributed Web site is described in the framework, and an architectural reference is given. Part of the Reading notes, part of the personal experience summary. It has a good reference value to the large-scale distributed website architecture.This sharing

location, the closest to the user, the best service status video server address to the user, So that users can get a fast video experience. This is the advantage that CDN brings, the nearest visit. Note: 1, this segment of the technology structure of Youku is organized here:/system-analysis/20110918/264936.html; 2, recommend a very good site:http://www.dbanotes.net/). From the hundreds of architectural plans to learn a bit of large-

, if not, it is recommended to learn the North wind network of "spark from beginner to proficient (Scala programming, Case combat, advanced features, spark kernel source analysis, Hadoop high-end)" Course (http://www. Ibeifeng. com/goods-560.html). Note one: Regarding the relationship between spark from beginner to proficient (Scala programming, Case combat, advanced features, spark kernel source profiling, Hadoop high end) and this set of courses, if you have learned the first set of spark tech

a number of code changes that pass a series of automated tests to push to the daily release branch (this process is also called "cherry-picking"). In general, the number of changes (cherry-picks) We choose each day is 500 to 700. The rest of the changes that are not cherry-picked are pushed into the weekly release branch. From the 2007 engineers to the current thousands of engineers, the system has been very scalable. The good news is that as we add more engineers, we are doing more and more

This article is a technical summary of learning the architecture of large distributed websites. A high-performance, highly available, scalable, extensible distributed Web site is described in the framework, and an architectural reference is given. Part of the Reading notes, part of the personal experience summary. It has a good reference value to the large-scale distributed website architecture.This sharing

make a style package deployment The local relative path is consistent with the line (avoid the need for repeated on-line modification of the absolute address during development and debugging) HTML static file Preview clear Easy development and online SVN The previous benefits of the development process with the code control is related to the focus on the SVN bar, we know: in some projects involved in the development of more and more engineers, must use SVN and other version contro

Original: http://mp.weixin.qq.com/s?__biz=MzA5ODM5MDU3MA==mid=211277835idx=1sn= 45631d0f416b7bc9b8bfc2aad76f85cdscene=1key= 0acd51d81cb052bc5897df08137e6dc7203f2168bded4fa93b0589d0763c767a5856b761e9f52ce5007a9d2566cebbf2ascene=0 uin=mjk1odmyntyymg%3d%3ddevicetype=imac+macbookpro9%2c2+osx+osx+10.10.4+build (14E46) version= 11020113pass_ticket=6x6xap05q6gt38m0drlejecvkvzrtmxdwbalwdetuyc524aerunbhf%2f1bf6jmepdAs a software engineer, inevitably affected b

There are many differences between Adobe flex development and traditional web development. The correct understanding and use of these differences can help us create a richer user experience, or in turn increase the usability of the site and the speed of browsing and updating. Flex also provides a large number of components and technology libraries to make web development easier--it provides far more powerful tools than asynchronous JavaScript and XML (Ajax) applications in traditional Web 2.0. I

the database, then we have to scatter these connections, or let the request queue up.Pain Point Two: the operation of the database table is nothing more than two kinds of write operations, a read operation, in the real situation is difficult to read and write problems, is often one of the table operation bottlenecks caused by the problem, because read and write are operating the same medium, This causes the problem to be solved if we do not split the media separately to solve the problem of rea

overwhelm the database, then we have to scatter these connections, or let the request queue up.　　Pain Point Two: the operation of the database table is nothing more than two kinds of write operations, a read operation, in the real situation is difficult to read and write problems, is often one of the table operation bottlenecks caused by the problem, because read and write are operating the same medium, This causes the problem to be solved if we do not split the media separately to solve the pr

that's slightly worse in accuracy and that's has greate R Ease of use and system reliability. However, in our experience, it's very valuable in practice.Lesson:start with a few specific applications on mind.It was tempting-to-build a learning system without focusing on any particular application. After all, our goal is to create a large scale system, would is useful on a wide variety of present and the future Classi fication tasks. Nevertheless, we d