simplify call to peer

tools/api.go

@@ -84,6 +84,9 @@ func (a *API) CheckRemoteAPIs(urls map[string]string) (State, map[string]string,
 	// Check if the database is up
 	new := map[string]string{}
 	caller := NewHTTPCaller(map[string]map[METHOD]string{})
+	code := 0
+	u := ""
+	e := ""
 	for appName, url := range urls {
 		var resp APIStatusResponse
 		b, err := caller.CallGet(url, "/version/status")
@@ -95,10 +98,15 @@ func (a *API) CheckRemoteAPIs(urls map[string]string) (State, map[string]string,
 			return DEAD, new, errors.New(url + " -> is DEAD")
 		}
 		new[appName] = resp.Data.State
-		if resp.Data.Code != 0 {
-			return REDUCED_SERVICE, new, errors.New(url + " -> " + resp.Error)
+		if resp.Data.Code > code {
+			code = resp.Data.Code
+			u = url
+			e += resp.Error
 		}
 	}
+	if code > 0 {
+		return REDUCED_SERVICE, new, errors.New(u + " -> " + e)
+	}
 	return ALIVE, new, nil
 }