Concept and usage of message queue Rabbit MQ

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 ...

Posted by monotoko on Wed, 20 Oct 2021 06:07:53 +0200

☀️ Suzhou program big white uses ten thousand words to analyze Python Network Programming and Web programming ☀️ < ❤️ Remember to collect ❤️>

catalogue 🏳️‍🌈 Let's talk!!!! 🏳️‍🌈 Suzhou program Dabai 🏳️‍🌈 🌟 Blogger introduction 💂 Personal home page: Suzhou program white 🤟 The author introduces: member of China DBA Alliance (ACDU) and administrator of program ape (yuan) gathering place of CSDN all over the country. Currently engaged in industrial ...

Posted by snascendi on Wed, 20 Oct 2021 08:29:20 +0200

13 rocketmq development model

In the previous part, we can build a RocketMQ cluster, and then use the command line to write messages to RocketMQ and consume them. In this part, let's look at how to use RocketMQ in the project. 1, RocketMQ native API usage Using RocketMQ's native API development is the simplest and most reliable way at present. Here, we use SpringBoot ...

Posted by John Canyon on Wed, 20 Oct 2021 09:54:46 +0200

First knowledge of c language 02

catalogue 6 selection statement 7 circular statement 8 function 9 array 10 operator arithmetic operator Shift operators Shift operators Bitwise operators Assignment operator unary operator Logical operator Relational operator Logical operator Conditional Operator comma expression Subscript references, function calls, and ...

Posted by wmac on Wed, 20 Oct 2021 06:33:56 +0200

hadoop learning notes: running wordcount to count file strings

I recently built a distributed hadoop environment using four Centos virtual machines, which simply simulated the online hadoop real distributed cluster, which is mainly used for amateur learning big data related systems. One server serves as a NameNode, one as a Secondary NameNode, and the other two as DataNodes node servers, similar to the fo ...

Posted by aaadispatch on Wed, 20 Oct 2021 06:28:42 +0200

Getting routing information from linux/macos

netlink What is netlink? Netlink is a communication mode provided by linux for the kernel and user processes. Although netlink is mainly used for communication between user space and kernel space, it can also be used for communication between two processes in user space. Generally speaking, there are three ways for user processes to comm ...

Posted by buluk21 on Wed, 20 Oct 2021 09:39:54 +0200