实例解析：MySQL 实例管理器识别的命令

一旦你已经为MySQL实例管理器设置了一个密码文件并且IM正在运行，你可以连接它。你可以使用mysql客户端工具通过标准MySQL API来连接。以下是MySQL实例管理器目前可以接收的命令的清单和例子。

&middot;START INSTANCE <instance_name>

该命令将试图启动一个实例：

mysql> START INSTANCE mysqld4;

Query OK, 0 rows affected (0,00 sec)

&middot;STOP INSTANCE <instance_name>
 
将试图停止一个实例：

mysql> STOP INSTANCE mysqld4;

Query OK, 0 rows affected (0,00 sec)

&middot;SHOW INSTANCES
 
显示所有载入的实例名：

mysql> show instances;
+---------------+---------+

| instance_name | status  |

+---------------+---------+

| mysqld3       | offline |

| mysqld4       | online  |

| mysqld2       | offline |

+---------------+---------+

3 rows in set (0,04 sec)

&middot;SHOW INSTANCE STATUS <instance_name>
 
显示选定的实例的状态和版本信息：

mysql> SHOW INSTANCE STATUS mysqld3;

+---------------+--------+---------+

| instance_name | status | version |

+---------------+--------+---------+

| mysqld3       | online | unknown |

+---------------+--------+---------+

1 row in set (0.00 sec)

&middot;SHOW INSTANCE OPTIONS <instance_name>
 
显示实例使用的选项：

mysql> SHOW INSTANCE OPTIONS mysqld3;

+-------------+--------------------------------------------------+

|option_name  | value                                            |

+-------------+--------------------------------------------------+

|instance_name| mysqld3                                          |

|mysqld-path  | /home/cps/mysql/trees/mysql-4.1/sql/mysqld       |

|port         | 3309                                             |

|socket       | /tmp/mysql.sock3                                 |

|pid-file     | hostname.pid3                                    |

|datadir      | /home/cps/mysql_data/data_dir1/                  |

|language     | /home/cps/mysql/trees/mysql-4.1/sql/share/english|

+-------------+--------------------------------------------------+

7 rows in set (0.01 sec)

&middot;SHOW <instance_name> LOG FILES