Manual:mysql.php
From Linux Web Expert
| MediaWiki file: mysql.php | |
|---|---|
| Location: | maintenance/ |
| Source code: | master • 1.41.1 • 1.40.3 • 1.39.7 |
| Classes: | MysqlMaintenance |
Details
The mysql.php maintenance script executes the MySQL client binary by connecting to the wiki's database. It takes credentials from LocalSettings.php and logs in to MySQL client.
Options
| Option | Description | Required |
|---|---|---|
| --write | Connect to the primary database | <translate> Optional</translate> |
| --group | Specify query group | <translate> Optional</translate> |
| --host | Connect to a specific MySQL server | <translate> Optional</translate> |
| --list-hosts | List the available database hosts | <translate> Optional</translate> |
| --cluster | Use an external cluster by name | <translate> Optional</translate> |
| --wikidb | The database wiki ID to use if not the current one | <translate> Optional</translate> |
Usage
php maintenance/mysql.php [ --write| --group| --host| --list-hosts| --cluster| --wikidb ]
Log in to MySQL client
Terminal
$ php maintenance/mysql.php Reading table information for completion of table and column names You can turn off this feature to get a quicker startup with -A Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 8 Server version: 8.0.26 Homebrew Copyright (c) 2000, 2021, Oracle and/or its affiliates. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. mysql>
List database hosts
Terminal
$ php maintenance/mysql.php --list-hosts primary.serv.er replica1.serv.er replica2.serv.er
Log in to MySQL client with cluster
If you use a database cluster to run your wiki with $wgExternalServers, you can use the --cluster option to log in.
$wgExternalServers = [
'demoCluster' => [
[ 'host' => 'leader.example.org', 'user' => 'userM', 'password' =>'pwdM', 'dbname' => 'dbM', 'type' => "mysql", 'load' => 1 ],
[ 'host' => 'follower1.example.org', 'user' => 'userS1', 'password' =>'pwdS1', 'dbname' => 'dbS1', 'type' => "mysql", 'load' => 1 ],
[ 'host' => 'follower2.example.org', 'user' => 'userS2', 'password' =>'pwdS2', 'dbname' => 'dbS2', 'type' => "mysql", 'load' => 1 ]
]
];
Terminal
$ php maintenance/mysql.php --cluster demoCluster Reading table information for completion of table and column names You can turn off this feature to get a quicker startup with -A Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 25 Server version: 8.0.26 Homebrew Copyright (c) 2000, 2021, Oracle and/or its affiliates. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. mysql>
Common error
- Error: invalid cluster
This error occurs when an invalid or non-existent cluster name is given to the script.
- Error: this script only works with MySQL/MariaDB
This error occurs when you run the script on a wiki that uses sqlite.
