Distributed network communication framework (1) - cluster and distributed

stand-alone chat server

Disadvantages :

Due to limited hardware resources, the concurrent users that the server can bear are not large enough;

Any module modification will cause the entire project code to be recompiled and deployed ;

In the system, some modules are CPU- intensive and some are IO- intensive, resulting in different requirements for hardware resources of each module.

cluster chat server

Advantages : Increased user concurrency and easy deployment

Disadvantages : Modifying the module project code still requires recompilation , and multiple compilations are required

For example, background management does not require high concurrency, so it does not need to be deployed on every machine

distributed

A project is divided into many modules . Each module is independently deployed and runs on a server host. All servers work together to provide services. Each server is called a distributed node . According to the concurrency requirements of nodes, a node can Then do node module cluster deployment, for example, the distributed node 1 in the figure below can deploy distributed nodes 1-1, distributed nodes 1-2, ...

question

How to divide the software modules of a large system? Modules may implement a large amount of repetitive code

Each module runs in a different process (such as dockerin a virtualized environment), how to access each module?

How does the module on machine 1 call a business method of the module on machine 2?

How does a module process 1 on machine 1 call a business method in module process 2 on machine 1?

Answer: This is the function of the distributed network communication framework to be realized in this project! Make specific remote function calls transparent