Add alive/total connections status to graphite

src/monitor/mod.rs

@@ -154,6 +154,8 @@ fn send_metrics(monitor: Monitor, handle: Handle)
                 server.score().map(|s| r("score", s as u64)),
                 Some(r("tx_bytes", traffic.tx_bytes as u64)),
                 Some(r("rx_bytes", traffic.rx_bytes as u64)),
+                Some(r("conns.total", server.conn_total() as u64)),
+                Some(r("conns.alive", server.conn_alive() as u64)),
             ]
         }).filter_map(|v| v);
         let mut buf = Vec::new();

src/proxy/mod.rs

@@ -199,6 +199,14 @@ impl ProxyServer {
         self.status().score
     }
 
+    pub fn conn_alive(&self) -> u32 {
+        self.status().conn_alive
+    }
+
+    pub fn conn_total(&self) -> u32 {
+        self.status().conn_total
+    }
+
     pub fn set_delay(&self, delay: Option<Duration>) {
         self.status().delay = delay;
         self.status().score =