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This article mainly explains "the method of using mysql global lock". The content of the article is simple and clear, and it is easy to learn and understand. Please follow the editor's train of thought to study and learn "the method of using mysql global lock".

1. Global lock locks the whole database. When locked, the entire instance will be read-only.

2. The subsequent MDL writing sentence, DDL sentence and updated transaction commit sentence will be blocked. Its typical usage scenario is to make a logical backup of the whole library.

Lock all tables to get a consistent view and ensure the integrity of the data.

Example

# Global lock, abbreviated as FTWRLFLUSH TABLES WITH READ LOCK; # unlocking command UNLOCK TABLES;, thank you for reading. The above is the content of "how to use mysql global lock". After the study of this article, I believe you have a deeper understanding of the method of using mysql global lock, and the specific use needs to be verified in practice. Here is, the editor will push for you more related knowledge points of the article, welcome to follow!

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