matchingSubsets := []string{}
				nonMatchingSubsets := []string{}
				drName, drNamespace, err := getIstioDestinationRuleNameForSvc(&cd, svc, port.Port)
				var dr *clientnetworking.DestinationRule
				if err == nil && drName != "" && drNamespace != "" {
					exist := false
					dr, exist = recordDestinationRules[newResourceID(drNamespace, drName)]
					if !exist {