Preface
If you want to design a microservice cloud architecture that can support the use of companies around the world, you must first understand the microservice architecture.
Since Dubbo was replaced by Spring Cloud, microservices have become more and more popular. Spring Cloud Alibaba is the second-generation implementation of Spring Cloud produced by Alibaba. It is the solution and essence of Alibaba's microservices. It is widely used in the industry, and the use of microservices is the general trend.
In recent years, microservices have become a frequently asked question in interviews, almost as long as you go to an Internet company, you must be asked!
Recently, a friend went to ByteDance for an interview and experienced the feeling of being abused!
specific situation
This friend was a little bit ashamed in his words: the interviewer had already given some hints, but he was helplessly not prepared enough and the answer was not ideal. He did not expect that technologies such as Seata, Nacos, Sentinel, Eureka, etc., have been involved in the work. The interviewer will ask so in-depth-
1. How can the registry of the microservice registry better prevent concurrent reading and writing? conflict?
2. Have you understood the Eureka registry multi-level cache architecture?
3. How does Nacos support access to millions of service instances within Alibaba?
4. Do you know how to design the high-concurrency asynchronous registration architecture of Nacos?
5. How is the Sentinel bottom sliding time window current limiting algorithm implemented?
6. How does the bottom layer of Sentinel calculate the real-time QPS of the online system?
7. How is Seata's distributed transaction coordination manager implemented?
8. How is Seata's distributed transaction consistency lock mechanism designed?
9. How is Seata's distributed transaction rollback mechanism implemented?
10. How is the Raft protocol at the bottom of the Nacos cluster CP architecture implemented?
11. Does the Nacos&Eureka&Zookeeper cluster architecture have split brain problems?
12. How to design a microservice cloud architecture that can support the use of companies around the world?
It can be called 12 soul tortures, there is no doubt that the friend has been abused!
Content probably
After reading it, do you think that Internet company interviews are so strict now? What I want to tell you is that there is nothing wrong! Even ask more and deeper! As far as I know, if you can answer half of it, you're barely passing. If you can answer all the twelve items, then you should be a proper technical expert! You can feel relieved to vote for a big factory resume!
But if you can't fully answer these questions, I suggest you take a look at the core knowledge points of this first-line Internet company Java interview!
This first-line Internet company Java interview core knowledge points cover a wide range of content, especially for microservices, which contains many first-line Internet interview questions and practical tutorials. The specific content is as follows:
One
1. Detailed explanation of the micro-service architecture of billion-level traffic e-commerce website
2. Nacos registry realizes the actual split of e-commerce micro-services
3. The actual load balancing call of the Ribbon multi-instance service
4. The actual combat of the high-availability current limiting fuse downgrading of the Sentinel service
5. The micro service Distributed transaction under the architecture Seata actual combat
6, routing & current limiting & security authentication gateway gateway actual combat
7, Nacos distributed configuration center detailed explanation
8, micro service call link tracking Pinpoint detailed explanation
9, micro service automated monitoring Prometheus & Grafana detailed explanation
10, Ali Jingdong Back-end microservices in practice
two
1. In-depth analysis of Nacos service registration and discovery source code
2. Nacos heartbeat mechanism and service health check source code analysis
3. How Nacos registry prevents multi-node read and write concurrency conflicts
4. Nacos high concurrency supports asynchronous tasks and memory queue analysis
5. Nacos cluster CP architecture underlying Raft protocol source code analysis
6, analyze Nacos & Eureka & Zookeeper from split brain problem architecture similarities and differences
7, Ali cloud ultra-large-scale registry SaaS architecture analysis
8, Sentinel bottom sliding time window limiting algorithm depth analysis
Metric mechanism 9, using the Sentinel computing line
Analysis of real-time QPS 10 and Seata distributed transaction rollback mechanism of the upper system
three
1. Detailed explanation of micro-service architecture distributed transactions
2. Ten minutes of fast actual combat with Ali distributed transaction framework Seata
3. AT mode model architecture and data model design
in Seata 4. Detailed implementation principles of Seata transaction manager
5. Seata global transactions and branch transactions Source code analysis
6, Seata data source agent extension source code analysis
7, Seata transaction isolation level bottom source code analysis
8, Seata transaction timeout, two-stage failure solution source code analysis
9, Production environment AT mode and TCC mode performance difference analysis microservices
this single chapter It contains so much content, and also covers other interview questions, as follows
summary
If you are not too confident about your own microservices, and feel that the content you have is not enough to make you face Internet companies, then you must get the core knowledge points of this first-line Internet company Java interview, whether it is microservices This piece is still other knowledge points. They are all summarized in great detail. Whether it is used for checking and filling vacancies by yourself, or for interview assault, it is very effective. The point is that this core knowledge is now available for free! As long as you pay attention to my public account Future Bright, you can get the core knowledge points of this first-line Internet company Java interview for free!