public Integer saveStandaloneCluster(String clusterTag, String clusterName) {
        SortClsClusterRequest request = new SortClsClusterRequest();
        request.setClusterTags(clusterTag);
        request.setName(clusterName);
        request.setInCharges(GLOBAL_OPERATOR);
        return clusterService.save(request, GLOBAL_OPERATOR);
    }
Inlong cluster service test for {@link InlongClusterService}
inlong-manager/manager-service/src/test/java/org/apache/inlong/manager/service/cluster/InlongClusterServiceTest.java