Introduction to Programming

Elastic

The ability to sustain the biggest possible load is usually associated with scalability. But the ability to preserve the same performance characteristics under varying loads is called elasticity. A client of an elastic system should not notice any difference between the idle periods and the periods of the peak load.

The non-blocking reactive style of implementation facilitates this quality. Also, breaking the program into smaller parts and converting them into services that can be deployed and managed independently allows for fine-tuning the resource allocation. Such small services are called microservices, and many of them can together comprise a reactive system that can be both scalable and elastic. We will discuss these solutions ...