MYSQL日志的正确删除方法详解_MySQL
本文详细讲述了MYSQL日志的正确删除方法。分享给大家供大家参考,具体如下:
1.查找:
MySQL> show binary logs; +—————-+———–+ | Log_name | File_size | +—————-+———–+ | mysql-bin.000001 | 150462942 | | mysql-bin.000002 | 125 | | mysql-bin.000003 | 106 | +—————-+———–+
2.删除bin-log(删除mysql-bin.000003之前的而没有包含mysql-bin.000003)
mysql> purge binary logs to 'mysql-bin.000003'; Query OK, 0 rows affected (0.16 sec)
3. 查询结果(现在只有一条记录了.)
mysql> show binlog events/G *************************** 1. row *************************** Log_name: mysql-bin.000003 Pos: 4 Event_type: Format_desc Server_id: 1 End_log_pos: 106 Info: Server ver: 5.1.26-rc-log, Binlog ver: 4 1 row in set (0.01 sec) (mysql-bin.000001和mysql-bin.000002已被删除) mysql> show binary logs; +—————-+———–+ | Log_name | File_size | +—————-+———–+ | mysql-bin.000003 | 106 | +—————-+———–+ 1 row in set (0.00 sec)
(删除的其它格式运用!)
PURGE {MASTER | BINARY} LOGS TO 'log_name' PURGE {MASTER | BINARY} LOGS BEFORE 'date'
用于删除列于在指定的日志或日期之前的日志索引中的所有二进制日志。这些日志也会从记录在日志索引文件中的清单中被删除,这样被给定的日志成为第一个。
例如:
PURGE MASTER LOGS TO 'mysql-bin.010′; PURGE MASTER LOGS BEFORE '2008-06-22 13:00:00′;
清除3天前的 binlog
PURGE MASTER LOGS BEFORE DATE_SUB( NOW( ), INTERVAL 3 DAY);
BEFORE变量的date自变量可以为'YYYY-MM-DD hh:mm:ss'格式。MASTER和BINARY是同义词。
如果您有一个活性的从属服务器,该服务器当前正在读取您正在试图删除的日志之一,则本语句不会起作用,而是会失败,并伴随一个错误。不过,如果从属服务器是休止的,并且您碰巧清理了其想要读取的日志之一,则从属服务器启动后不能复制。当从属服务器正在复制时,本语句可以安全运行。您不需要停止它们。
代码如下:
0 1 * * * `mysql -uroot -e 'PURGE MASTER LOGS BEFORE DATE_SUB( NOW( ), INTERVAL 3 DAY);'`
更多关于MySQL相关内容感兴趣的读者可查看本站专题:《MySQL日志操作技巧大全》、《MySQL事务操作技巧汇总》、《MySQL存储过程技巧大全》、《MySQL数据库锁相关技巧汇总》及《MySQL常用函数大汇总》
希望本文所述对大家MySQL数据库计有所帮助。

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics











The main role of MySQL in web applications is to store and manage data. 1.MySQL efficiently processes user information, product catalogs, transaction records and other data. 2. Through SQL query, developers can extract information from the database to generate dynamic content. 3.MySQL works based on the client-server model to ensure acceptable query speed.

Laravel is a PHP framework for easy building of web applications. It provides a range of powerful features including: Installation: Install the Laravel CLI globally with Composer and create applications in the project directory. Routing: Define the relationship between the URL and the handler in routes/web.php. View: Create a view in resources/views to render the application's interface. Database Integration: Provides out-of-the-box integration with databases such as MySQL and uses migration to create and modify tables. Model and Controller: The model represents the database entity and the controller processes HTTP requests.

MySQL and phpMyAdmin are powerful database management tools. 1) MySQL is used to create databases and tables, and to execute DML and SQL queries. 2) phpMyAdmin provides an intuitive interface for database management, table structure management, data operations and user permission management.

Compared with other programming languages, MySQL is mainly used to store and manage data, while other languages such as Python, Java, and C are used for logical processing and application development. MySQL is known for its high performance, scalability and cross-platform support, suitable for data management needs, while other languages have advantages in their respective fields such as data analytics, enterprise applications, and system programming.

I encountered a tricky problem when developing a small application: the need to quickly integrate a lightweight database operation library. After trying multiple libraries, I found that they either have too much functionality or are not very compatible. Eventually, I found minii/db, a simplified version based on Yii2 that solved my problem perfectly.

Article summary: This article provides detailed step-by-step instructions to guide readers on how to easily install the Laravel framework. Laravel is a powerful PHP framework that speeds up the development process of web applications. This tutorial covers the installation process from system requirements to configuring databases and setting up routing. By following these steps, readers can quickly and efficiently lay a solid foundation for their Laravel project.

The basic operations of MySQL include creating databases, tables, and using SQL to perform CRUD operations on data. 1. Create a database: CREATEDATABASEmy_first_db; 2. Create a table: CREATETABLEbooks(idINTAUTO_INCREMENTPRIMARYKEY, titleVARCHAR(100)NOTNULL, authorVARCHAR(100)NOTNULL, published_yearINT); 3. Insert data: INSERTINTObooks(title, author, published_year)VA

When developing an e-commerce website using Thelia, I encountered a tricky problem: MySQL mode is not set properly, causing some features to not function properly. After some exploration, I found a module called TheliaMySQLModesChecker, which is able to automatically fix the MySQL pattern required by Thelia, completely solving my troubles.
