@Override
    public void addNode(MasterEntry masterEntry) {
        try {
            masterRepository.saveAndFlush(masterEntry);
        } catch (Exception e) {
            log.error("save masterEntry {} to db fail with ex ", e);
            throw new RuntimeException(e.getMessage());
        }
    }
given one topic, copy its config and clone to brokers
if no broker is is provided, topics will be cloned to all brokers in cluster

@param req
@return

@throws Exception exception
inlong-tubemq/tubemq-manager/src/main/java/org/apache/inlong/tubemq/manager/service/NodeServiceImpl.java