Java

1. Overview 2. Boss-array initialization 3. Worker-array initialization 4. Bind

What Apollo is, how to use it, and how its push-pull configuration update mechanism works.

1. What it is 2. Usage 3. Principles 4. Problems 5. References

What Feign is, why it exists, and how its interface proxy, Ribbon, Eureka, and HTTP request construction work.

What Spring Cloud Gateway is, its Route/Predicate/Filter concepts, and its asynchronous non-blocking thread model.

1. What Hystrix is 2. Why Hystrix is needed 3. Usage 4. Features 5. Principles 6. References

What Ribbon is, why load balancing is needed, usage, working flow, and load-balancing strategies.

What Spring Cloud Sleuth is and how it works with Zipkin.

1. What it is 2. Usage 3. Principles 4. Zuul 1 vs Zuul 2 5. References

1. What ApplicationListener is 2. How to use the event-listener mechanism 3. References