On the "Golden Nine Silver Ten", young graduates are full of hope and anxiety, looking for and competing for a job opportunity. The development students who are already on the job also want to get better treatment and a bigger platform through social recruitment or internal promotion.
However, there are a large number of interviewers, and the technical market is relatively cold. The students who are interviewed have to face the huge competition of N candidates for 1 position.
Q: Under this situation, how can we get more and better offers?
A: Short-term preparation - brushing interview questions; long-term planning - consolidating core skills.
How to brush the interview questions? Brush high-frequency questions, deep questions, and time-sensitive questions.
How to consolidate core skills? First in-depth understanding of the principle, and then systematically apply it to practice.
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 tens of millions of people can visit and also support the normal ticket rush? ?
These problems are the pain points that you will 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 contents, the products you develop can be used for Users can provide a better user experience, and 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!
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 don't have 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.