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RocketMQ队列里面消息堆积到一定量时候告警是要怎么做，是要自己开发去监控还是可以用现成的开源项目？

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最高等级！Apache RocketMQ 入选可信开源项目星云象限领导型象限

2023 年 4 月 21 日，由中国信通院主办的 OSCAR 开源生态建设论坛在北京成功召开。本次论坛，中国信通院发布了可信开源项目星云象限。星云象限依托于可信开源项目指数中流行度、参与度、响应度、安全能力和法律合规五个指标，从项目可持续性与可信性两个维度，将可信开源共同体项目分为四个阶...

Fastjson官方再次披露高危漏洞，包括rocketmq、jeecg-boot等近15%的github开源项目受影响

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RocketMQ中如何从零开始参与进开源项目呢？

我的mqtt协议和emqttd开源项目个人理解（26） - 产品开发遇到的问题解答，关于订阅和上下线插件

我 17:27请问大咖们，之前群里提到“EMQ中CPU是公平分配给MQTT会话，大量pub消息到一个订阅，订阅不会拿到更多cpu，最终导致消息累积。”这个问题在emq v1和v2版本都存在吗？大概每秒发多少条数据就会出现这个现象？大梁先生 17:53这和机器配置有一定关系的而且不要做这种设计呀干...

我的mqtt协议和emqttd开源项目个人理解（25） - 协议里面Clean Session为0和1的区别

一、基本概念Session 会话定义定义：某个客户端（由ClientID作为标识）和某个服务器之间的逻辑层面的通信生命周期（存在时间）：会话 >= 网络连接CleanSession 标记在Connect时，由客户端设置 0 —— 开启会话重用机制。网络断开重连后，恢复之前...

我的mqtt协议和emqttd开源项目个人理解（24） - emq v2.3.11源码成熟度如何？

源码：https://github.com/emqx/emqx-rel/tree/v2.3.11https://github.com/emqx/emqx/tree/v2.3.11/src从原作者那边了解到，总体还可以，但是做不到99.99%稳定。主要是连接内存占用没有保护。pubsub均衡时很稳定，...

我的mqtt协议和emqttd开源项目个人理解（23） - websocket客户端连接过程分析（Wireshark抓包+源码分析）

我们可以使用emq自带的Dashboard插件，进行websocket调试，打开谷歌浏览器输入网址，其中192.168.83.128是emq所在的IP地址：http://192.168.83.128:18083/#/websocket用户名：admin，密码：publicWebSocket URI&...

我的mqtt协议和emqttd开源项目个人理解（22） - 关于客户端上线自动订阅主题

通过修改配置文件即可实现。emq v1.1.3，rel\emqttd\etc\emqttd.config‘subscription’扩展模块支持客户端上线时，自动订阅或恢复订阅某些主题(Topic):%% Modules {modules, [ %% Client presence manageme...

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