QBH-insist

## Issue Description Type: *bug report* @EnableNacosDiscovery 不生效，现象是：@import 注解的 NacosDiscoveryBeanDefinitionRegistrar 的 registerBeanDefinitions 方法 不能被执行， 服务注册发现失效 ### Describe what happened (or what feature you want) 在我司的一个老项目中（javaweb）中，使用 https://nacos.io/zh-cn/docs/quick-start-spring.html 教程进行接入 nacos， 发现并不能如期进行服务注册和发现，且注入 NamingService...

Sometimes a 'deadlock' may occur when resubscribing to a topic in the connectComplete callback

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- [x] Bug exists Release Version 1.2.5 ( Master Branch) - [x] Bug exists in MQTTv3 Client on Snapshot Version 1.2.6-SNAPSHOT (Develop Branch) - [ ] Bug exists in MQTTv5...

上传文件的所有本地图片失败

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**版本：** v2.7.0， 默认配置 **现象:** 扫描识别不到图片 下面三种格式均无法识别 格式1：![] (C://Users//pc//Documents//FocusNote//assets//967ce6e8-cbb3-414b-8f4d-91ab72349061.png) 格式2：![] (file://C:\Users\pc\Documents\FocusNote\assets\e4a6740f-a242-4342-bff4-d2dcb7e457b2.png?t=1667972487360) 格式3：![] (C:\Users\pc\Documents\FocusNote\assets\967ce6e8-cbb3-414b-8f4d-91ab72349061.png)

[Question] Mysql Monitor Template fields And Monitor Rule

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### Question "Version"： `v1.6` 1. The Chinese explanation for the 'Connections' field in the MySQL monitoring template seems to be incorrect  https://dev.mysql.com/doc/refman/5.7/en/server-status-variables.html  2. Then, I want to set...