v0.26.4

src/balance/lease_runtime.rs

@@ -347,7 +347,14 @@ pub async fn health_loop(app: Weak<crate::runtime::App>, shutdown: CancellationT
                 let snapshot = app.config.load_full();
                 let members: Vec<_> = snapshot.pools.iter().flat_map(|pool|
                     pool.members.iter().map(move |member| (member, &pool.settings.health_check))).collect();
-                for (member, _) in &members { member.state.sample_traffic(); }
+                for (member, _) in &members {
+                    member.state.sample_traffic();
+                    // Time-based pool recycling must not depend on receiving a
+                    // request; otherwise idle backends can stay on generation 0
+                    // indefinitely after the configured recycle age elapses.
+                    member.backend.client.maintain_rotation();
+                    member.backend.websocket_client.maintain_rotation();
+                }
                 // Rotate the bounded probe window: slow first members must not
                 // starve later pools when all intervals equal their timeouts.
                 let start = cursor;