Why do you need to learn high-concurrency system design when you enter an Internet company?
Before answering "why to learn high concurrency system design", I want you to think about a few questions:
- In Weibo, celebrities often have tens of millions or even hundreds of millions of fans. How do you ensure that the content released by celebrities can be seen by fans in real time?
- Taobao Double Eleven, when you and tens of thousands of people snap up a piece of clothing with a high price-performance ratio, how can you ensure that the clothing will not be oversold?
- During the Spring Festival travel, we all go to 12306 to order train tickets. In the past, we often encountered the situation that the page could not be opened when rushing for tickets. So if you design the 12306 system, how can you ensure that it can support normal ticket rushing even when millions of people visit? ?
These problems are the pain points you often encounter when designing and implementing high-concurrency systems. They all involve how to achieve high performance and high availability in high-concurrency scenarios. Mastering these issues will help you develop products that can provide users with better The experience of using it, your technical ability can also have a qualitative change.
It is undeniable that knowledge of high-concurrency system design is an indispensable tool for obtaining offers from major manufacturers
For large factories, just knowing CRUD programmers is not as attractive as programmers with high concurrency system design experience. When you go for an interview, the interviewer will ask you to have high concurrency design experience , and some interviewers will Ask what bottlenecks your system may have when encountering millions of concurrency, and what optimization ideas you have, in order to check whether you really understand this aspect.
So if you can't enter a big factory, and there is no high concurrency scenario, where do these design experiences come from? This is the chicken-and-egg problem. Therefore, I will share this advanced manual for the design of high-concurrency and high-availability systems of large manufacturers that I collected before . If I can read it carefully, I believe I will gain something. At least there is no problem in dealing with interviews, and the offer of large manufacturers will not be far away. out of reach!
由于篇幅原因，本文只展示了目录和内容截图，有需要学习的小伙伴私信【高并发】即可！
Dachang High Concurrency and High Availability System Design Advanced Manual Catalog
Contents of Advanced Manual for Design of High Concurrency and High Availability System of Dachang
Basics
Database articles
Cache articles
message queue
Distributed Services
Maintenance
Actual combat
Summarize
High concurrency is indeed a complex and systematic problem. If the business scenarios are different, the implementation plans of high concurrency will also be different, but the overall design ideas and the solutions that can be used for reference are basically similar.
High concurrency design also adheres to the three principles of architecture design: simplicity, appropriateness, and rigor . "Premature optimization is the root of all evil." It cannot be separated from the actual situation of the business, let alone over-designed. The right solution is the most perfect.
I hope the above collection of study manuals can give you a more comprehensive understanding of high concurrency. Even if you have no experience with high-concurrency projects, if you can refer to the above content and answer systematically, I believe it will definitely give the interviewer a bright feeling.
有需要的小伙伴直接私信我【面试】即可~