云消息队列 MQ物联网设备的相关内容

MQTT常见问题之物联网设备端申请动态注册时MQTT服务不可用如何解决

问题一：MQTT里我更改为云端SDK消费，会出现消息丢失的情况，发十条消息，大概只能收到六七条，为什么啊？ MQTT里我更改为云端SDK消费，会出现消息丢失的情况，发十条消息，大概只能收到六七条，请问这是什么原因啊？参考答案：在MQTT协议中，消息的传递是由发布者（Publisher）和订阅者（...

MQTT未及时续费，释放了，重新订阅，如何与之前的物联网平台设备对应？

RocketMQ 5.0学习资料

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Apache RocketMQ：如何从互联网时代演进到云

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带您快速了解阿里云消息队列RocketMQ 5.0版

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[帮助文档] MQTT协议保留消息的概念、交互过程及使用场景

保留消息用于确保新订阅Topic的设备能及时收到最新状态的消息，即使消息在设备订阅之前发布。服务端向Topic发布消息时，如果消息携带保留标记（Reatin），物联网平台将会保存这个消息并实时发布给订阅者，后续订阅该Topic的设备都会收到保留消息。保留消息在MQTT 3.1.1标准中就已定义，阿里...

[帮助文档] MQTT协议遗嘱消息的概念、交互过程及使用场景

MQTT协议的遗嘱消息，用于在设备离线时向其他设备告知其已离线。如果设备异常断开且在一段时间内未重连，物联网平台会代为发送遗嘱消息。遗嘱消息在MQTT 3.1.1标准中已定义，阿里云物联网平台在MQTT 5.0接入时支持这个特性。本文为您介绍遗嘱消息的概念、交互过程及使用场景。

[帮助文档] NLB助力EMQ构建高性能企业级MQTT物联网接入平台

EMQ使用NLB实现亿级设备的并发管理，构建高性能、高可靠、低成本的企业级MQTT物联网接入平台。

MQTT 与物联网设备（网关）的数据对接和 MQTT 与 RocketMQ 的双向转存怎么弄呢？

请问下MQTT 与物联网设备（网关）的数据对接和 MQTT 与 RocketMQ 的双向转存怎么弄呢？

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