https://nalar.dev/tags/failure-handling/ Recent content in Failure Handling on Nalar Hugo en-us Sat, 12 Sep 2026 00:00:00 +0700 https://nalar.dev/circuit-breakers-as-admission-control-for-failing-dependencies/ Sat, 12 Sep 2026 00:00:00 +0700 https://nalar.dev/circuit-breakers-as-admission-control-for-failing-dependencies/ <h1 id="circuit-breakers-as-admission-control-for-failing-dependencies">Circuit Breakers as Admission Control for Failing Dependencies</h1> <p>A remote call that has little chance of succeeding still consumes something: a connection slot, a worker, a deadline budget, memory for request state, or capacity in the dependency itself. When repeated failures indicate that a downstream service is currently unable to serve useful work, continuing to admit every call can preserve the very pressure that callers need to escape.</p> <p>A circuit breaker changes that admission decision. Instead of treating each call as independent, it retains a small amount of state about recent outcomes. That state can temporarily reject new calls before network I/O begins, then permit controlled probes after a recovery interval.</p>