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  • Solution to the NVME disk not available in Centos system cloud host

    This article is shared from Tianyi Cloud Developer Community "Solutions for the Unavailable NVME Disk in Centos System Cloud Host", Author: P****n Problem Description After the cloud host of Linux system uses NVMe disk, unexpected slow IO reading and writing occurs, resulting in the system or application's IO operation on NVMe disks failed. The system kicks out the nvme disk, and the nvme disk cannot be viewed through lsblk in the system, and subsequent reading and writing...

    Updated on 2025-04-03 19:22:07

  • How does the program run?

    Directory Reference Why do you need to understand memory layout? Imagine that you moved into a new house but don’t know where the bedroom, kitchen, bathroom, and debris room are. If you get up every day and find a toilet, it’s like playing escape room. Isn’t it a big breakdown? The memory of a computer is like your "digital house". If you don't understand its layout, it's easy to go to the wrong room as you write it....

    Updated on 2025-04-03 17:43:09

  • \"You think customers need it\" is the last straw that kills TA | IPD integrated product development

    Does this Mickey Mouse washing machine look familiar to everyone? I believe that friends who are keen on surfing the Internet recently are no strange......

    Updated on 2025-04-03 15:04:44

  • Introduction to the functions of ShadowSql

    ShadowSql contains most of the functions of SQL. It is divided into Insert, Delete, Update, Select (SingleSelect), CreateTable, DropTable and TruncateTable. The above functions also include sub-functions, including Table, AliasTable, DB, TableView,...

    Updated on 2025-04-03 11:02:06

  • Linear Models and Multi-Category Problems: The Power of Simple and Efficient

    In the world of machine learning, classification problems are everywhere, and multi-categorization problems are a common challenge. Whether it is ide......

    Updated on 2025-04-03 08:42:35

  • zk basics—3. Cluster and core parameters

    Outline 1. How is zk stand-alone mode started 2. How is zk cluster deployed and started 3. What kind of configuration machine should be used to deploy zk clusters 4. How to reasonably set zk JVM parameters and memory size 5. The core parameters of zk configuration tickTime, dataDir and dataLogDir 6. The two core parameters that affect the formation of the Leader and Follower cluster are ini...

    Updated on 2025-04-02 22:34:19

  • A 35-year-old programmer\'s middle-aged job search record: In-depth reflection after four hits

    Hello, today I will talk about the 35-year-old topics that programmers are concerned about, and by the way, I will record my real interview experience......

    Updated on 2025-04-02 21:48:21

  • Large amount of data topk-bucket + heap + multiplexed solution

    Solve TopK problems using bucketing, heap and multiplexing: Result processing stage analysis When processing large-scale data, the TopK problem is a common and challenging task, namely finding the largest (or smallest) K elements from massive data. In order to solve this problem efficiently, we can adopt a combination of bucketing, heap and multiplexing. This article will analyze the code logic of the result processing stage in this method in detail. Problem background...

    Updated on 2025-04-02 17:40:17

  • Linux | How to create a home directory on the /data disk sudo user

    Requirements: I got the boss's server account ssh [email protected]. I need to log in to the boss's account, and then create an account for myself to realize ssh <user_name>@172.16.1.100 login. I hope my account has 1. Sudo permissions, 2. The home directory has a large space. (b...

    Updated on 2025-04-02 16:50:52

  • Intelligent connected vehicle cloud control platform | Tupu Digital Twin

    Tupu software is based on HTML5's 2D and 3D graphics rendering engines, combined with GIS maps, and uses B/S technical architecture to create an intelligent connected vehicle cloud control platform....

    Updated on 2025-04-02 16:35:53

  • Note a pitfall during cross-compilation of .NET AOT

    Note a pitfall during cross-compilation of .NET AOT Background: Avalonia projects developed using .NET9 need to be deployed to Linux-arm64. Troubleshooting: After configuring the official AOT cross-compilation document, dotnet publish -r linux-arm64 prompt error: The PrivateSdkAssemblies...

    Updated on 2025-04-02 16:20:25

  • C# Call Win10/11 File Association Dialog

    Method 1: Calling the unpublished interface IOpenWithLauncher Adobe Acrobat should be the unpublished interface method called [ComImport] [InterfaceType(ComInterfaceType.InterfaceIsIUnknown)] [Guid("6A283FE2-...

    Updated on 2025-04-02 15:31:38

  • Learn Kotlin grammar (IV)

    Introduction In the previous section, we have a general understanding of the relevant knowledge of functions in Kotlin. In this chapter, we will learn about some scope functions in Kotlin. Directory let: handle nullable objects, chain operations run: object configuration + calculate return value with: perform multiple operations on non-empty objects apply: initialize object configuration also: attach operations (such as printing logs) Kotlin...

    Updated on 2025-04-02 14:31:44

  • When the workplace becomes a battlefield: demotion, conspiracy and a head-on struggle

    Author: Zhu Meng 1819 (public account of the same name) Original text: https://www.cnblogs.com/yanfei1819/p/18805782 Copyright Statement: This article is an original article by the blogger. Please attach a link to the blog post when reprinting! Today, I want to share a friend’s workplace story. 1. Background My friend is a senior engineer and has worked for many years. Worked in a new energy company and worked in product development...

    Updated on 2025-04-02 13:45:09

  • Governments should set public opinion rankings on their official websites. All countries belong to local people

    Public opinion ranking list Purpose: Public opinion ranking list refers to the work direction of regional people to the government and even the country. Policies and regulations implementation takes effect and expire. Treat the people Focus on the incident Solutions and dates and progress Efficiency of the government’s implementation...

    Updated on 2025-04-02 11:05:00

  • Web Front-end Introduction Question 24: CSS Unit

    The unit is the thing that describes the length. For example, height is 180cm (cm), cm is the unit. css is no exception. To describe the size of a box, you must use units. css units are divided into several categories according to their functions: absolute units, relative units, viewport units, angle units, time units, grid units, frequency units, and resolution units. Dynamic calculation unit Before you understand the unit, you should first understand a few dynamic calculations...

    Updated on 2025-04-02 09:37:50

  • How Transformer\'s self-attention mechanism captures \"the past and the past\"

    The readers hope that I can combine the classical Chinese practices such as "Mortality" to show how the self-attention mechanism captures the "confron......

    Updated on 2025-04-02 08:16:13

  • A deep understanding of C++ conditional variables: Why `wait` loves `std::unique_lock`?

    A deep understanding of C++ conditional variables: Why wait loves std::unique_lock? In C++ multithreading programming, coordination among threads is a core challenge. We often need a thread to wait for a certain condition to be satisfied (for example, waiting for the task queue to be non-empty, or waiting for a certain calculation to be completed), while another thread is responsible for notifying the waiting thread when the condition is met. std::condition_v...

    Updated on 2025-04-01 23:33:55

  • Introduce some optimization solutions for single page first-screen loading ~

    Single-page application (SPA) homepage loading optimization solution. Homepage loading optimization is the core performance indicator of single-page a......

    Updated on 2025-04-01 22:43:03

  • Build a CI/CD system with a server bought at 99 yuan

    The story begins like this: when I was bored, I bought a 99/year service on Alibaba Cloud, deployed a Git service on it to host some code I wrote when I was bored, and also used it as a development server. In order to facilitate application management, docker was initially used to manage and deploy applications, but later it was upgraded and used docker-compose. After all, declarative deployment is more scientific than hand-knitting commands....

    Updated on 2025-04-01 22:38:16