sentinel 1.8.6 持久化数据到nacos配置中心，修改规则刷新页面数据有延迟

[xinxinQ]

Issue Description

sentinel 1.8.6 数据持久化nacos，dashboard页面刷新还是修改之前的数据，再次刷新后正常 Type: bug report

Describe what happened

数据保存nacos后数据不实时刷新

Describe what you expected to happen

dashboard修改规则，刷新页面后实时更新修改后的内容

How to reproduce it (as minimally and precisely as possible)

1. 实现DynamicRulePublisher<List<FlowRuleEntity>>后重写： public void publish(String app, T rules) throws Exception { AssertUtil.notEmpty(app, "app name cannot be empty"); if (rules == null) { return; }

    String dataId = app + this.getDataIdPostfix();
    String groupId = nacosProperties.getGroupId();
   
    log.info("publish; dataId: {},groupId: {},rules: {}",dataId,groupId,rules);
   
    nacosConfigService.publishConfig(dataId,groupId, converter.convert(rules), ConfigType.JSON.getType());
   

   }

2. FlowController 代码： public Result<List<FlowRuleEntity>> apiQueryMachineRules(@RequestParam String app) {

    if (StringUtil.isEmpty(app)) {
        return Result.ofFail(-1, "app can't be null or empty");
    }
    try {
        List<FlowRuleEntity> rules = ruleProvider.getRules(app);
        if (rules != null && !rules.isEmpty()) {
            for (FlowRuleEntity entity : rules) {
                entity.setApp(app);
                if (entity.getClusterConfig() != null && entity.getClusterConfig().getFlowId() != null) {
                    entity.setId(entity.getClusterConfig().getFlowId());
                }
            }
        }
        rules = repository.saveAll(rules);
        return Result.ofSuccess(rules);
    } catch (Throwable throwable) {
        logger.error("Error when querying flow rules", throwable);
        return Result.ofThrowable(-1, throwable);
    }
   

   } public Result<FlowRuleEntity> apiUpdateFlowRule(@PathVariable("id") Long id, @RequestBody FlowRuleEntity entity) { if (id == null || id <= 0) { return Result.ofFail(-1, "Invalid id"); } FlowRuleEntity oldEntity = repository.findById(id); if (oldEntity == null) { return Result.ofFail(-1, "id " + id + " does not exist"); } if (entity == null) { return Result.ofFail(-1, "invalid body"); }

    entity.setApp(oldEntity.getApp());
    entity.setIp(oldEntity.getIp());
    entity.setPort(oldEntity.getPort());
    Result<FlowRuleEntity> checkResult = checkEntityInternal(entity);
    if (checkResult != null) {
        return checkResult;
    }
   
    entity.setId(id);
    Date date = new Date();
    entity.setGmtCreate(oldEntity.getGmtCreate());
    entity.setGmtModified(date);
    try {
        entity = repository.save(entity);
        if (entity == null) {
            return Result.ofFail(-1, "save entity fail");
        }
        publishRules(oldEntity.getApp());
    } catch (Throwable throwable) {
        logger.error("Failed to update flow rule", throwable);
        return Result.ofThrowable(-1, throwable);
    }
    return Result.ofSuccess(entity);
   

   }

3. 页面操作修改刷新页面数据还是修改前的，强刷页面后正常显示

[sirius19]

数据保存完之后，又刷新获取，nacos数据有延迟的，可以修改成优先从内存获取。

[Daydreamer-ia]

感觉使用内存的数据来展示 dashboard 不大合适，因为这样的话就不知道是否成功变更到 sentinel 应用. @LearningGp