When multiple servers update the same data simultaneously, race conditions occur. Scalable systems implement concurrency controls, shifting from strict transaction isolation (ACID) to properties (Basically Available, Soft state, Eventual consistency) to optimize performance. 5. Free and Open-Source Resources on GitHub
A curated list of blog posts, videos, and papers tracking how tech giants like Netflix, Uber, and Meta scale their infrastructure. foundations of scalable systems pdf github free
The system continues to operate despite arbitrary message loss or failure of part of the system. When multiple servers update the same data simultaneously,
: Designing with caching, asynchronous messaging, and microservices to ensure the system doesn't choke under pressure. Scalable Data Systems foundations of scalable systems pdf github free
Adding power (CPU, RAM) to a single machine. It has hard hardware limits and introduces a single point of failure.