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It should have been updated yesterday, but when using the browser to access the web port of the server's RabbitMQ, chrome shows that it is not a private link and does not allow you to log in to the Edge. Baidu has found many problems and still can't solve them. The reason is that the server doesn't install SSL certificate and uses ip directly t ...

I Persistence RabbitMQ supports message persistence, that is, data is written on disk. (1) exchange persistence, specifying durable = > 1 when declaring (2) queue persistence, specifying durable = > 1 when declaring (3) Message persistence, specifying delivery when delivering_ Mode = > 2 (1 is non persistent) Note: if the message is p ...

An InterruptException occurred when the RocketMQConsumer service was shut down Background summary The main problem is the version upgrade Old version core rocketmq dependency <dependency> <groupId>org.apache.rocketmq</groupId> <artifactId>spring-boot-starter-rocketmq</artifactId> <version>${ve ...

RabbitMQ is used as the message queue in the project. I have encountered the loss of messages. I hereby record it. Write in front First, let's talk about the three semantics in MQTT protocol, which is very important. In MQTT protocol, three quality of service standards that can be provided when delivering messages are given. The thre ...

Introduction and optimization process of simple second kill system windows native hardware configuration: 8-core 32G linux server hardware configuration: 2-core 4G Foreword, the optimized simple second kill system does not involve distribution, so naturally there are no technical points such as master-slave replication. Here, we should a ...

consumer.registerMessageListener(new MessageListenerOrderly() { @Override public ConsumeOrderlyStatus consumeMessage(List<MessageExt> msgs, ConsumeOrderlyContext context) { for (MessageExt msg : msgs) { System.out.println(new String(msg.getBody())+" Thread:"+Thread.currentThread( ...

Table of Contentsbackground knowledgeArchitectural Evolution in the Big Data AgeRocketMQ Connector&StreamApache HudiBuilding Lakehouse PracticesThe title of this article contains three keywords: Lakehouse, RocketMQ, Hudi. We start with the overall Lakehouse architecture, and then step by step analyze the causes of the architecture, the char ...

1. Transaction scenario Scenario: ICBC user A transfers 10000 yuan to CCB user B; Steps: 1. ICBC system sends a synchronization message M to Broker, which increases the payment of RMB 10000 to B2. After the message is successfully received by the Broker, send a successful ACK to the ICBC system3. ICBC system will deduct 10000 yuan from u ...

Rocketmq can only guarantee local order, not global order messages Sequential consumption based on queue (partition) is provided in RocketMQ.   Sequencing in RocketMQ mainly refers to the sequential consumption of messages. Each consumption group in RocketMQ has a separate thread pool for concurrent consumption of pulled messages, that is, t ...

1. Retry of sequential messages For sequential messages, when the consumer fails to consume the message, the message queue RocketMQ will automatically retry the message continuously (with an interval of 1 second). At this time, the application will be blocked in message consumption. Therefore, when using sequential messages, it is important to ...