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1, Overview Distributed transaction messages are a unique feature of RocketMQ. In many scenarios, the strong consistency of transactions is not required, but only the final consistency of transactions. At this point, transaction messages can well meet the requirements. By putting the local transaction and message sending into one local tr ...

Java client access Kafka Introducing maven dependency <dependency> <groupId>org.apache.kafka</groupId> <artifactId>kafka-clients</artifactId> <version>2.4.1</version> </dependency> <dependency> <groupId>com.alibaba</groupId> <artifactId>fastjson</artifactId&gt ...

Video directions 👉 Station B dark horse micro service Super recommended!! Getting to know Elasticsearch 1. Understand ES Elastic search is a very powerful open source search engine with many powerful functions, which can help us quickly find the content we need from massive dataElastic search combines kibana, Logstash and Beats, that is ...

Presto instructions 1, Presto introduction 1.1 official document address of Presto https://prestodb.io/docs/0.255/index.html Note: This is Presto-0.255 Version official document. If you want to refer to other versions, replace "255" with the corresponding version number. 1.2 schematic diagram of Presto architecture 1.2.1 Pres ...

IHttpClientFactory can be registered and used to configure and create HttpClient instances in applications. The advantages of IHttpClientFactory are as follows: Provides a central location for naming and configuring logical HttpClient instances. For example, a client named GitHub can be registered and configured to access GitHub. You can regis ...

The popular open source message middleware in the industry includes ActiveMQ, rabbitmq, RocketMQ, Kafka and ZeroMQ, among which rabbitmq, RocketMQ and Kafka are the most widely used. Redis can also be a mechanism similar to Queue and Pub/Sub to some extent, but it is not strictly a message oriented middleware. This article will talk about the b ...

1.jdk installation 1) windows install jdk 1. Download Open the following link: http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html , enter the JDK1.8 download official website, or directly Baidu JDK1.8, or enter the download official website. After entering the official website, download the JDK of the c ...

I believe that those who have used Node.js must be familiar with middleware. The emergence of middleware, without exception, was born to improve our code writing efficiency. However, many small partners have used Express middleware, but they have not written their own middleware. Today I will take you to write a simple middleware 1. Concept of ...