Dr. An is here! We are pleased to introduce “Dr. An”, who is backed by a top-notch technical expert team from Ampere Computing, dedicated to sharing cutting-edge technical analyses, application insights, and trend observations in the cloud-native field with you. Let’s welcome “Dr. An” to shine on stage and bring the first exciting sharing! 【Follow】 … Read more
Steps This is the tool I use to view data in the EMQ server, MQTTX, which is quite handy. First, we need these libraries. It’s quite simple to download them, just search for installation on Baidu, and after installation, import them. Taking the topic “weight_pub” as an example, we first retrieve MQTT data. The function … Read more
Whether for databases or applications, when issues arise, knowing the exception stack information can greatly assist in identifying the root cause and fundamentally resolving the problem. The stack information from MySQL can similarly aid in problem-solving. This article from the technical community, 《MySQL Fault Reporting Core Dump Collection Process》 introduces the process of collecting core … Read more
▼Click the image below to search for the secret code【001】, and immediately receive154 pages of Linux study notes. What Is the Difference Between CPU Utilization and CPU Load? When mentioning CPU utilization, one must understand the time slice. What is a CPU time slice? The operating systems we currently use, such as Windows, Linux, and … Read more
With little knowledge of hardware, let’s learn from Master Yang’s article “Do You Understand ARM CPU Architecture?!”. Introduction Recently, there was a requirement to install MySQL 8.0 on an ARM architecture; I’ve heard of ARM CPUs, but have never deployed them in practice; and what exactly is this ARM CPU architecture? I only have a … Read more
This article is reprinted from the Jishu Community. Jishu Column: Arm Server Author:BoltLiu This is a test report on enabling MySQL PGO. Correctly enabling MySQL PGO leads to significant performance improvements, with write performance increasing by about 13% and read performance increasing by about 20%. Environment Setup The testing environment is set up on an … Read more
Training Background In recent years, the Linux operating system has become the main alternative to the Windows platform, and its rapid development has attracted widespread attention. Major IT companies around the world, such as IBM, ORACLE, and CA, have launched products based on the Linux environment, hoping to break Microsoft’s monopoly and gain more development … Read more
Introduction by AliMei What processes does an SQL statement go through during execution? As a newcomer to big data development, the author has organized the entire process of SQL task execution. This article shares the author’s learning and insights for everyone’s reference. As a new developer in big data, I am curious about the entire … Read more
The “Data Heart” of Embedded Systems In today’s digital wave, embedded systems are like ubiquitous “behind-the-scenes heroes,” deeply integrated into our lives. From the thoughtful control of smart homes to the precise operation of industrial automation, and the life-saving capabilities of medical devices, embedded systems play a crucial role. Among them, embedded database systems act … Read more
Detailed description of backing up and restoring MySQL database on Linux system is as follows:: Backing Up the Database: Log in to the Linux system and open a terminal window. Use the mysqldump command to create a backup of the database. The mysqldump command is a tool provided by MySQL that can export the data … Read more