Add rtt metrics.

src/args.rs

@@ -20,7 +20,7 @@ pub struct Args {
     #[arg(long, default_value = "600")]
     pub projects_refresh_interval: usize,
 
-    #[arg(long, default_value = "5")]
+    #[arg(long, default_value = "3")]
     pub projects_inactive_minutes: u64,
 
     #[arg(long, default_value = "60")]

src/metrics/project_metrics.rs

@@ -29,6 +29,9 @@ pub struct ProjectMetrics {
     requests_processed: IntGaugeVec,
     requests_granted: IntGaugeVec,
     item_fail_rate: GaugeVec,
+    rtt: GaugeVec,
+    rtt_real: GaugeVec,
+    rtt_count: IntGaugeVec,
 }
 
 impl ProjectMetrics {
@@ -43,6 +46,9 @@ impl ProjectMetrics {
             requests_processed: IntGaugeVec::new(Opts::new("requests_processed", "requests_processed"), &["project"])?,
             requests_granted: IntGaugeVec::new(Opts::new("requests_granted", "requests_granted"), &["project"])?,
             item_fail_rate: GaugeVec::new(Opts::new("item_fail_rate", "item_fail_rate"), &["project"])?,
+            rtt: GaugeVec::new(Opts::new("rtt", "rtt"), &["project"])?,
+            rtt_real: GaugeVec::new(Opts::new("rtt_real", "rtt_real"), &["project"])?,
+            rtt_count: IntGaugeVec::new(Opts::new("rtt_count", "rtt_count"), &["project"])?,
         };
 
         s.registry.register(Box::new(s.item_request_serve_rate.clone()))?;
@@ -68,6 +74,9 @@ impl MetricsProvider for ProjectMetrics {
         update_gauge_from_redis(&mut con, project, "reclaim_serve_rate", &self.reclaim_serve_rate)?;
         update_gauge_from_redis(&mut con, project, "reclaim_rate", &self.reclaim_rate)?;
         update_gauge_from_redis(&mut con, project, "item_fail_rate", &self.item_fail_rate)?;
+        update_gauge_from_redis(&mut con, project, "rtt", &self.rtt)?;
+        update_gauge_from_redis(&mut con, project, "rtt_real", &self.rtt_real)?;
+        update_gauge_from_redis(&mut con, project, "rtt_count", &self.rtt_count)?;
         let t = get_last_requests_time()?;
         let rp_key = format!("requests_processed:{t}");
         update_gauge_from_redis(&mut con, project, &rp_key, &self.requests_processed)?;