v0.34.0_1

src/balance/model.rs

@@ -386,6 +386,9 @@ impl Default for FailureObservation {
 }
 #[derive(Debug)]
 pub struct BackendState {
+    // Lock-free healthy lookups on the hot request-selection path. The mutex
+    // remains authoritative for transitions, probes and quarantine expiry.
+    healthy_cached: AtomicBool,
     health: Mutex<Health>,
     traffic: Mutex<Traffic>,
     last_failure: Mutex<FailureObservation>,