https://stewie1520.github.io/tags/go/Recent content in go on StewieHugo -- gohugo.ioen-usMon, 02 Sep 2024 17:33:00 +0700https://stewie1520.github.io/posts/circuit-breaker/Mon, 02 Sep 2024 17:33:00 +0700https://stewie1520.github.io/posts/circuit-breaker/Your order-service calls payment-service over HTTP. One day payment-service doesn’t go down. It just gets slow: every request takes 30 seconds, then times out. Here is what happens to order-service: Each incoming request waits 30 seconds on the payment call, holding a goroutine, a connection, some memory. New requests keep coming in, and they wait too. The connection pool runs dry. Requests that have nothing to do with payments start to queue.