code review

nomad/client_rpc_test.go

@@ -142,4 +142,5 @@ func TestServerWithNodeConn_NoPathAndErr(t *testing.T) {
 	srv, err := s1.serverWithNodeConn(uuid.Generate())
 	require.Nil(srv)
 	require.NotNil(err)
+	require.Contains(err.Error(), "failed querying")
 }

nomad/client_stats_endpoint.go

@@ -80,6 +80,10 @@ func (s *ClientStats) Stats(args *structs.ClientStatsRequest, reply *structs.Cli
 			return err
 		}
 
+		if srv == nil {
+			return ErrNoNodeConn
+		}
+
 		return s.srv.forwardServer(srv, "ClientStats.Stats", args, reply)
 	}