Fix connection pool stats

Also HTTP should read its own Raft address locally.

cluster/client.go

@@ -254,8 +254,8 @@ func (c *Client) Stats() (map[string]interface{}, error) {
 		poolStats[k] = s
 	}
 	return map[string]interface{}{
-		"timeout": c.timeout,
-		"pool":    poolStats,
+		"timeout":         c.timeout,
+		"conn_pool_stats": poolStats,
 	}, nil
 }
 

http/service.go

@@ -1002,11 +1002,21 @@ func (s *Service) checkNodesAPIAddr(nodes []*store.Server, timeout time.Duration
 		wg.Add(1)
 		go func(id, raftAddr string) {
 			defer wg.Done()
-			apiAddr, err := s.cluster.GetNodeAPIAddr(raftAddr)
-			if err == nil {
-				mu.Lock()
-				apiAddrs[id] = apiAddr
-				mu.Unlock()
+
+			localRaftAddr, err := s.store.LeaderAddr()
+			if err != nil {
+				return
+			}
+
+			if raftAddr == localRaftAddr {
+				apiAddrs[id] = localRaftAddr
+			} else {
+				apiAddr, err := s.cluster.GetNodeAPIAddr(raftAddr)
+				if err == nil {
+					mu.Lock()
+					apiAddrs[id] = apiAddr
+					mu.Unlock()
+				}
 			}
 		}(n.ID, n.Addr)
 	}

tcp/pool/channel.go

@@ -46,6 +46,7 @@ func NewChannelPool(initialCap, maxCap int, factory Factory) (Pool, error) {
 			c.Close()
 			return nil, fmt.Errorf("factory is not able to fill the pool: %s", err)
 		}
+		atomic.AddInt64(&c.nOpenConns, 1)
 		c.conns <- conn
 	}