Detailed explanation of Discuz database storage path

Detailed explanation of Discuz database storage path

Discuz is a popular open source forum program, and its database is a key part of storing all data of the forum. In the process of using Discuz to build a forum, it is very important to understand the storage path of the database. This article will introduce the storage path of the Discuz database in detail and provide some specific code examples to help readers better understand and apply it.

1. The basic concept of database storage path

In Discuz, the database storage path refers to the specific storage location of the database file on the server. Generally speaking, the database storage path is determined by the relevant parameters in the database server configuration file. In Discuz, commonly used database servers include MySQL, MariaDB, etc.

2. MySQL database storage path configuration

For the MySQL database, the storage path is specified by the datadir parameter in the configuration file my.cnf. The datadir parameter defines the storage directory for MySQL data files. Normally, the default value of the datadir parameter is /var/lib/mysql.

If you need to modify the MySQL database storage path, you can follow the following steps:

1. Open the MySQL configuration file my.cnf, usually located in /etc/mysql/my.cnf.
2. Find the datadir parameter and modify it to the new storage path, for example: datadir = /newpath/mysql.
3. Save and close the configuration file, and restart the MySQL database service to make the configuration take effect.

The sample code is as follows:

sudo nano /etc/mysql/my.cnf

Find and modify the datadir parameter to the new path:

datadir = /newpath/mysql

Restart the MySQL service:

sudo systemctl restart mysql

3. MariaDB Database storage path configuration

MariaDB is a branch of MySQL, and its database storage path configuration is similar to MySQL. In MariaDB, the database storage path is also specified through the configuration file my.cnf.

Similar to MySQL, the storage path configuration of the MariaDB database can also be modified according to the above steps.

The sample code is similar to the MySQL configuration and will not be repeated here.

4. Precautions for database storage path

1. Before modifying the database storage path, please make sure to back up important data to avoid data loss.
2. After modifying the database storage path, you need to restart the database service to take effect.
3. Pay attention to the permission settings and ensure that the database server has permission to read the new storage path.

Summary:

Through the introduction of this article, readers can better understand the storage path configuration of the Discuz database and how to modify the storage path of the database. In practical applications, understanding the configuration of the database storage path is very important for maintaining and managing forum data. I hope that after reading this article, readers can operate the Discuz database more skillfully and ensure the security and stability of the forum data.

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