After Fixing Thread Pool Exhaustion, A Reader Asked: Did You Add a Circuit Breaker? Here's What I Did Next

This is a follow-up to my previous article — Our Spring Boot API Froze Under Load [ https://hashnode.com/edit/cmny3jv0u00bg2dlndzza08zy ] A reader asked me a question I couldn't stop thinking about. In my last article I wrote about how our Spring Boot API froze under load because of thread pool exhaustion. We fixed it with two things — adding timeouts on external calls and isolating slow dependencies into their own thread pool using @async . A reader left a comment that stopped me mid-scroll: "A