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They’re a fairly common design pattern https://en.m.wikipedia.org/wiki/Circuit_breaker_design_patte.... However, they certainly aren’t implemented with the frequency they should be at service level boundaries resulting in these sorts of cascading failures.

Netflix was talking alot about circuit breaks a few years ago, and had the Hystrix project. Looks like Hystrix is discontinued, so I'm not sure if there are good library solutions that are easy to adopt. Overall I don't see it getting talked about that frequently... beyond just exponential backoff inside a retry loop.

- https://github.com/Netflix/Hystrix - https://www.youtube.com/watch?v=CZ3wIuvmHeM I think talks about Hystrix a bit, but I'm not sure if it's the presentation I'm thinking of from years ago or not.

In the JVM land resilience4j is the de facto successor of Hystrix:

https://github.com/resilience4j/resilience4j

One of the big issues mentioned was that one of the circuit breakers they did have (client back off), didn't function properly. So they did have a circuit breaker in the design, but it was broken.