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引言我们很高兴地宣布：由 EMQ 提供的 MQTT 开放基准测试规范现已正式发布！该测试规范包含了实用的典型使用场景、一套衡量 Broker 性能的主要指标，以及一个模拟负载和收集测试结果的工具，可以帮助开发者评估 MQTT Broker 的可扩展性和性能，从而选择最需要和合适的产品。客观实用的 M...

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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请教下我们MQTT能够接入的设备数量有上限吗，如果接入设备达到百万级，会不会出现服务性能或者其他问题

请教下我们MQTT能够接入的设备数量有上限吗，如果接入设备达到百万级，会不会出现服务性能或者其他问题？

精华推荐 | 【深入浅出RocketMQ原理及实战】「性能原理挖掘系列」透彻剖析贯穿RocketMQ的事务性消息的底层原理并在分析其实际开发场景

什么是事务消息事务消息（Transactional Message）是指应用本地事务和发送消息操作可以被定义到全局事务中，要么同时成功，要么同时失败。RocketMQ的事务消息提供类似 X/Open XA 的分布事务功能，通过事务消息能达到分布式事务的最终一致。事务消息所对应的场景在一些对数据一致性...

精华推荐 | 【深入浅出RocketMQ原理及实战】「性能原理挖掘系列」透彻剖析贯穿RocketMQ的系统服务底层原理以及高性能存储设计挖掘深入

设计背景消息中间件的本身定义来考虑，应该尽量减少对于外部第三方中间件的依赖。一般来说依赖的外部系统越多，也会使得本身的设计越复杂，采用文件系统作为消息存储的方式。RocketMQ存储机制消息中间件的存储一般都是利用磁盘，一般是使用机械硬盘，但机械硬盘的速度比访问内存慢了n个数量级，一款优秀的消息中间...

EMQX+阿里云飞天洛神云网络 NLB：MQTT 消息亿级并发、千万级吞吐性能达成

随着物联网技术的发展与各行业数字化进程的推进，全球物联网设备连接规模与日俱增。一个可靠高效的物联网系统需要具备高并发、大吞吐、低时延的数据处理能力，支撑海量物联网数据的接入与分析，从而进一步挖掘数据价值。于今年五月发布的 EMQX 5.0 版本全球首个实现了单集群 1 亿并发连接支持，成为目前世界上...

RocketMQ这样做，压测后性能提高30%

从官方这边获悉，RocketMQ在4.9.1版本中对消息发送进行了大量的优化，性能提升十分显著，接下来请跟着我一起来欣赏大神们的杰作。根据RocketMQ4.9.1的更新日志，我们从中提取到关于消息发送性能优化的【Issues:2883】,详细链接如下：具体优化点如截图所示：首先先尝试对上述优化点做...

RocketMQ这样做，压测后性能提高30%

大家好，我是冰河~~今天为大家带来一篇RocketMQ性能优化的文章，没想到RocketMQ性能优化还能这么玩儿，厉害了！！从官方这边获悉，RocketMQ在4.9.1版本中对消息发送进行了大量的优化，性能提升十分显著，接下来请跟着我一起来欣赏大神们的杰作。根据RocketMQ...

java消息队列中Kafka和RocketMQ哪个性能更好，该如何选择？

java应用中用到了RocketMQ发现消费消息过慢，严重影响了应用处理性能，该如何优化？

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