WebApr 7, 2024 · producer.setTransactionListener (transactionListener); producer.start (); Message msg = new Message ("TopicTest", "TagA", "KEY", "Hello RocketMQ ".getBytes (RemotingHelper.DEFAULT_CHARSET)); SendResult sendResult = producer.sendMessageInTransaction (msg, null); System.out.printf ("%s%n", … Web1、创建事务性生产者. 使用 TransactionMQProducer 类创建生产者,并指定唯一的 ProducerGroup ,就可以设置自定义线程池来处理这些检查请求。. 执行本地事务后、需要根据执行结果对消息队列进行回复。. 回传的事务状态在请参考前一节。. import org. apache. rocketmq. client ...
面试官再问我如何保证 RocketMQ 不丢失消息,这回我笑了! - 楼 …
WebOct 16, 2024 · The answer is actually simple, you are sending too fast that reaches the flow control threshold. When you send a aysnc message, the client will try to acqurie a permit, the after it receive the broker response, it will release the permit. WebApr 3, 2024 · // 构建消息对象 Message msg = new Message( topic, //这里指定延时消息的topic message.getBytes(RemotingHelper.DEFAULT_CHARSET)); // 指定延时级别为3 msg.setDelayTimeLevel(3); producer.send(msg); 可以看到最核心的内容就是msg.setDelayTimeLevel (3),设置了延迟级别。 RocketMQ支持的延迟级别有18个,这个 … blocking software for websites
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Web创建消息 指定主题topic 标签tag 和消息体 message 消息体需要转换为byties Message message = new Message("TopicTest", "TagA", ("Hello RocketMQ" + i).getBytes(RemotingHelper.DEFAULT_CHARSET)); //6. WebDec 19, 2024 · You can connect open-source Java clients to DMS for RocketMQ. The recommended Java client version is 4.9.0. Use either of the following methods to import … WebMar 19, 2024 · value.getBytes(RemotingHelper.DEFAULT_CHARSET)); msg.setKeys(key); msg.setDelayTimeLevel(4); SendResult sendResult = … blocking solution bsa