Avoiding Self-Denial

Shared-nothing architecture

We can avoid machine-induced self-denial by building a shared-nothing architecture. Shared-nothing architecture is when each server can run without knowing anything about any other server. The machines don’t share databases, cluster managers, or any other resource. It’s a hypothetical ideal for horizontal scaling.

In reality there’s always some amount of contention and coordination among the servers, but we can sometimes approximate shared-nothing. Where that’s impractical, apply decoupling middleware to reduce the impact of excessive demand, or make the shared resource itself ...