Ms. Dong Fei's Premium Course: Metadata Locks in MySQL and TiDB (Part 1): What is a Metadata Lock?

This topic has been translated from a Chinese forum by GPT and might contain errors.

Original topic: 董菲老师精品课:MySQL 与 TiDB 中的元数据锁(一):什么是元数据库锁

| username: Billmay表妹


MySQL and TiDB Metadata Lock Series Video - Episode 1. This video focuses on the concept, principles, and uses of metadata locking in databases.

Table of Contents:

  • Chapter 1: What is Metadata Lock
  • Chapter 2: How Metadata Locking Works
  • Chapter 3: Overview of Metadata Lock Implementation in MySQL and TiDB


How to Contribute?

If you often give internal presentations on TiDB technology or have ideas to share TiDB technology with the community, you can upload your recorded videos in the Technical Practice Zone.

Tips for Recording Videos

To make your video content more popular, you can approach recording “high-quality” technical videos from the following angles:

  1. High Accuracy: Technical videos need to ensure content accuracy. Different audiences may have different technical levels, but whether they are beginners or professionals, they all hope to gain correct knowledge and skills from the video.

  2. Clear and Concise Expression, Humor: Technical videos need to use clear and concise language and cues to express content. You can add points to your technical video with your humorous and witty presentation style!

  3. Suitable Topic: Choose topics you are good at or that are popular.

  4. Tool Selection: Many meeting software now comes with recording functions. Whether you show your face or not, you can use the meeting software you are familiar with to record. If you can show your face, that’s even better.

  5. Clarity: Ensure that community members have no issues with the clarity when watching your video. This may require you to use slightly larger fonts when creating PPTs.

  6. User-Friendly: Video authors need to ensure the video is friendly to novice users. Beginners hope to gain basic knowledge from the video, so the difficulty of recording the video should be moderate.

  7. Bonus Points: If you can use animation effects, editing, and other techniques to help everyone gain knowledge and joy, that would be great!


Publishing a high-quality “video” over 10 minutes (same as publishing a technical article)

  • Counts as one annual contribution
    • Publishing videos or articles more than 3 times annually qualifies for MVA review
    • Publishing videos or articles more than 10 times annually qualifies for MOA review
  • Rewards experience points & points 500-2000
  • Accumulating more than 10 high-quality videos qualifies you for the “Community Excellent Lecturer Title” and exclusive custom benefits.

More benefits and awards can be found at: 【TiDB Community Honor】How to Become MVA & MOA?



If the technical video content is based on TiDB version, it requires version 4.0 or above.


No restrictions

Try not to overlap with existing course videos or official documentation content


Not less than 10 minutes

If the content is long, it is recommended to break it into multiple sections. Courses of 10-20 minutes are more popular among students.

PPT Template

TiDB Community Speaker PPT Template.pptx (1.0 MB)

Why Share Technical Insights & Content via Video?

Technicians Prefer Video Format for Technical Content

  • More Intuitive and Lively: Technicians usually prefer to learn knowledge through visual and auditory means because videos can intuitively demonstrate the process of technical implementation, making it easier to understand.

  • Easier to Learn and Understand: Compared to reading long articles, videos are more easily accepted and absorbed by technicians, especially when the video is short, allowing for quick understanding of concepts or complex technical implementations.

  • Richer Content: Compared to articles mainly based on text, videos can express technical content more richly, offering more possibilities in technical demonstrations, example code demonstrations, and actual operations, providing community members with a more comprehensive understanding of the entire process of using the technology.

  • Convenience: Watching videos online is more convenient than reading articles, compressing time and space. Videos can be watched anytime and anywhere, saving time and effort.

Benefits for Creators:

  • Saves Time and Effort: Making videos requires less preparation time. The PPT only needs to show key points, and you can freely elaborate during the presentation.

  • Low Recording Cost: Most meeting software comes with recording functions. You only need to prepare the PPT to complete the recording anytime and anywhere.

  • Build Personal Brand: Videos are more likely to go viral and be shared, gaining more attention and recognition, establishing a good reputation in the community and industry, and gaining more exposure and recognition.

More historical videos can be found at: TiDB_Robot的个人空间-TiDB_Robot个人主页-哔哩哔哩视频

| username: ShawnYan | Original post link

MDL is an unavoidable topic.