Java

Exploration of Vectorized SIMD Instructions in PolarDB Distributed Edition

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Exploration of Vectorized SIMD Instructions in PolarDB Distributed Edition

1. Background PolarDB Distributed Edition (PolarDB for Xscale, abbreviated as: PolarDB-X) is a cloud-native distributed database with important features such as online transaction and analytical processing (HTAP), separation of computing and storage, and global secondary indexing. In terms of HTAP, PolarDB Distributed Edition has explored and practiced many aspects of vectorization for the AP engine, … Read more

Distributed Link Tracing: TraceIdFilter + MDC + Skywalking

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Distributed Link Tracing: TraceIdFilter + MDC + Skywalking

Click the blue “Most Programmer” to follow me! Add a “Star“, every day at 18:03, let’s learn technology together. Source: juejin.cn/post/7278498472860581925 Pain Points Solution MDC Principle Logback Placeholder Pain Points When checking online logs, logs from multiple threads within the same Pod are interleaved, making it difficult to trace the log information corresponding to each … Read more

Essential Linux Commands for Java Development

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Essential Linux Commands for Java Development

Reading this article will take approximately 13 minutes. Source: Internet, please delete if infringing. Basic Operations Linux Shutdown and Restart # Shutdown shutdown -h now # Restart shutdown -r now View System and CPU Information # View system kernel information uname -a # View system kernel version cat /proc/version # View current user environment variables … Read more

Spring MVC: The Ultimate Guide to HTTP Mastery from Bronze to King

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Spring MVC: The Ultimate Guide to HTTP Mastery from Bronze to King

“Spring MVC is not a tool for writing Controllers, but a guide on how to think in the paradigm of Web development.” —— A note found in the notebook of an architect at Alibaba, P8 level MVC stands for Model View Controller, which is a software design pattern. Its core principle is to separate business … Read more

Embedded Development Learning Notes

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Embedded Development Learning Notes

Click the blue text above to follow for more first-hand resources on electronic competitions. Little Creation Little Creation Little Creation In preparation for the electronic competition, Little Creation has launched a learning section. Starting today, we will update the technical department’s learning notes in real-time for everyone’s reference. Microcontroller Learning Notes Learning Objectives Objective 1: … Read more

Detailed Explanation of PBE Algorithm: Password-Based Encryption Mechanism

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Detailed Explanation of PBE Algorithm: Password-Based Encryption Mechanism

Detailed Explanation of PBE Algorithm: Password-Based Encryption Mechanism 1. What is the PBE Algorithm PBE (Password Based Encryption) is an encryption technology that combines symmetric encryption algorithms and message digest algorithms. It is not an independent encryption algorithm, but a secure framework that converts user-friendly passwords into strong keys. 2. Core Idea of PBE The … Read more

Understanding the Differences, Application Scenarios, and Recommended Projects for C, C++, Java, Python, and PHP

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Understanding the Differences, Application Scenarios, and Recommended Projects for C, C++, Java, Python, and PHP

Are you still struggling to choose a programming language? This article uses a table and simple analogies to help you quickly understand the pros and cons of the five major mainstream languages, along with practical project recommendations. 1. Summary in One Sentence: Choosing a Language is Like Choosing a Kitchen Knife • C: Like a … Read more

Introducing a Powerful Open Source Java Diagnostic Tool from Alibaba: Arthas

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Introducing a Powerful Open Source Java Diagnostic Tool from Alibaba: Arthas

What is Arthas? Arthas is an open-source Java online diagnostic tool developed by Alibaba. It is extremely powerful and can solve many issues that are difficult to address online. Arthas operates in a command-line interactive mode, supports JDK6+, and is compatible with Linux, Mac, and Windows operating systems. The commands also support tab key auto-completion … Read more

Master Arthas: Achieve 5 Years of Expertise with Just 3 Years of Experience!

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Master Arthas: Achieve 5 Years of Expertise with Just 3 Years of Experience!

Click the “Yudao Source Code” above and select “Set as Favorite” What does it matter if it’s the old or the new wave? The wave that can surf is the good wave! Every day at 10:33 we update articles, losing a bit of hair every day… Quality Source Code Column Original | The Super God … Read more