消息队列RocketMQ版发消息的相关内容

问答 2023-07-31 来自：开发者社区

为啥用RocketMQ发消息，dashboard每次显示两条，但是只是会消费一次？

为啥用RocketMQ发消息，dashboard每次显示两条，但是只是会消费一次？是因为client和server版本不一致导致吗？服务端是5.1，客户端是5.0版本，该如何解决？

问答 2023-07-23 来自：开发者社区

RocketMQ为啥我发消息，dashboard每次显示两条，但是只是会消费一次？

RocketMQ为啥我发消息，dashboard每次显示两条，但是只是会消费一次？不知道是不是client和server版本不一致导致的？服务端是5.1，客户端是5.0版本

问答 2023-02-19 来自：开发者社区

rocketmq发消息，mqtt双向收消息这个功能怎么实现呢？

文章 2022-12-17 来自：开发者社区

RocketMQ中生产者发消息前为啥一定要调用start()方法？

前言我们在使用RocketMQ发送消息时，一般都会使用DefaultMQProducer，类型的代码如下：DefaultMQProducer producer = new DefaultMQProducer("producer_group"); producer.setNamesrvAddr("42.192.50.8:9876"); try { producer.start(); ...

文章 2022-02-18 来自：开发者社区

RocketMQ入门到入土（六）发消息的时候选择queue的算法有哪些？（下）

2.2.1、不启用broker故障延迟既然sendLatencyFaultEnable默认是false，那就先看当sendLatencyFaultEnable=false时候的逻辑public MessageQueue selectOneMessageQueue(final String lastBrokerName) { // 第一次就是null，第二次（也就是重试的时候）就不是nul...

文章 2022-02-18 来自：开发者社区

RocketMQ入门到入土（六）发消息的时候选择queue的算法有哪些？（上）

一、说明分为两种，一种是直接发消息，client内部有选择queue的算法，不允许外界改变。还有一种是可以自定义queue的选择算法（内置了三种算法，不喜欢的话可以自定义算法实现）。public class org.apache.rocketmq.client.producer.DefaultMQProducer { // 只发送消息，queue的选择由默认的算法来实现 @Ove...

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更新时间 2023-08-01 10:05:11

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