MYSQLMANAGER实例管理器总结
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一、简单介绍:
1、MySQL实例管理器(IM)是通过TCP/IP端口运行的后台程序,用来监视和管理MySQL数据库服务器实例。(如果你之前用过MYSQLD_MULTI就很清楚了。)
2、如果IM挂了,则所有的实例就挂掉了;如果实例挂了,IM会尝试重新启动它。
3、IM读取配置文件比如MY.CNF的[manager]段。
4、此例是在LINUX下试验的,其他的系统手册上有详细介绍。
二、一些详细配置。
1、
以下是我的配置文件
[manager]
user=mysql
default-mysqld-path = /usr/local/mysql/bin/mysqld
socket=/tmp/manager.sock
pid-file=/tmp/manager.pid
password-file = /etc/mysqlmanager.passwd
monitoring-interval = 2
port = 1999
bind-address = 192.168.0.231
log = /usr/local/mysql/bin/mysqlmanager.log
run-as-service = true
[mysqld1]
...
[mysqld2]
...
这个有两个配置实例,具体就不说了。见我的安装多个实例的文章。
具体含义查看mysqlmanager --help
2、密码文件。
IM将用户信息保存到密码文件中。密码文件的默认位置为/etc/mysqlmanager.passwd。
密码应类似于:
petr:*35110DC9B4D8140F5DE667E28C72DD2597B5C848
我的mysqlmanager.passwd内容
user_all:*6BB4837EB74329105EE4568DDA7DC67ED2CA2AD9
3、启动IM。
[root@localhost tmp]# /usr/local/mysql/bin/mysqlmanager
WARNING: This program is deprecated and will be removed in 6.0.
[2483/3086632640] [08/04/24 14:24:50] [INFO] IM: started.
[2483/3086632640] [08/04/24 14:24:50] [INFO] Loading config file 'my.cnf'...
[2483/3086632640] [08/04/24 14:24:50] [INFO] Manager: initializing...
[2483/3086632640] [08/04/24 14:24:50] [INFO] Manager: detected threads model: POSIX threads.
[2483/3086632640] [08/04/24 14:24:50] [INFO] Loading the password database...
[2483/3086632640] [08/04/24 14:24:50] [INFO] Loaded user 'user_all'.
[2483/3086632640] [08/04/24 14:24:50] [INFO] The password database loaded successfully.
[2483/3086632640] [08/04/24 14:24:50] [INFO] Manager: pid file (/tmp/manager.pid) created.
[2483/3086632640] [08/04/24 14:24:50] [INFO] mysqld instance 'mysqld1' has been added successfully.
[2483/3086632640] [08/04/24 14:24:50] [INFO] mysqld instance 'mysqld2' has been added successfully.
[2483/3076139920] [08/04/24 14:24:50] [INFO] Guardian: started.
[2483/3076139920] [08/04/24 14:24:50] [INFO] Guardian: starting 'mysqld1'...
[2483/3076058000] [08/04/24 14:24:50] [INFO] Instance 'mysqld1': Monitor: started.
[2483/3076058000] [08/04/24 14:24:50] [INFO] Instance 'mysqld1': Monitor: starting mysqld...
[2483/3076139920] [08/04/24 14:24:50] [INFO] Guardian: starting 'mysqld2'...
[2483/3076058000] [08/04/24 14:24:50] [INFO] Instance 'mysqld1': Monitor: waiting for mysqld to stop...
[2483/3075894160] [08/04/24 14:24:50] [INFO] Instance 'mysqld2': Monitor: started.
[2483/3075894160] [08/04/24 14:24:50] [INFO] Instance 'mysqld2': Monitor: starting mysqld...
[2483/3075894160] [08/04/24 14:24:50] [INFO] Instance 'mysqld2': Monitor: waiting for mysqld to stop...
[2483/3086632640] [08/04/24 14:24:50] [INFO] Manager: started.
[2483/3075976080] [08/04/24 14:24:50] [INFO] Listener: started.
[2483/3075976080] [08/04/24 14:24:50] [INFO] Listener: accepting connections on ip socket (port: 1999)...
[2483/3075976080] [08/04/24 14:24:50] [INFO] Listener: accepting connections on unix socket '/tmp/manager.sock'...
...
InnoDB: than specified in the .cnf file 0 5242880 bytes!
080424 14:24:50 InnoDB: Started; log sequence number 0 46409
080424 14:24:50 [Note] Event Scheduler: Loaded 0 events
080424 14:24:50 [Note] /usr/local/mysql/bin/mysqld: ready for connections.
Version: '5.1.23a-maria-alpha-log' socket: '/tmp/mysql1.sock' port: 3306 MySQL Community Server [Maria] (GPL)
080424 14:24:50 [Warning] 'user' entry 'root@localhost.localdomain' ignored in --skip-name-resolve mode.
080424 14:24:50 [Warning] 'user' entry '@localhost.localdomain' ignored in --skip-name-resolve mode.
080424 14:24:50 [Note] Event Scheduler: Loaded 0 events
080424 14:24:50 [Note] /usr/local/mysql/bin/mysqld: ready for connections.
Version: '5.1.23a-maria-alpha-log' socket: '/tmp/mysql2.sock' port: 3309 MySQL Community Server [Maria] (GPL)
[2483/3076139920] [08/04/24 14:24:52] [INFO] Guardian: 'mysqld1' is running, set state to STARTED.
4、连接IM。
[root@localhost ~]# mysql -uuser_all -p -S/tmp/manager.sock -P1999
三、用IM来管理MYSQL。
1、显示实例的状态和版本信息。
[root@localhost ~]# mysql -uuser_all -p -S/tmp/manager.sock -P1999
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 1
Server version: 1.0-beta
Type 'help;' or '\h' for help. Type '\c' to clear the buffer.
mysql> show instances;
+---------------+--------+
| instance_name | state |
+---------------+--------+
| mysqld1 | online |
| mysqld2 | online |
+---------------+--------+
2 rows in set (0.00 sec)
关闭实例1
mysql> stop instance mysqld1;
Query OK, 0 rows affected (0.30 sec)
mysql> show instances;
+---------------+---------+
| instance_name | state |
+---------------+---------+
| mysqld1 | offline |
| mysqld2 | online |
+---------------+---------+
2 rows in set (0.00 sec)
开启实例1
mysql> start instance mysqld1;
Query OK, 0 rows affected (0.00 sec)
Instance started
mysql> show instances;
+---------------+--------+
| instance_name | state |
+---------------+--------+
| mysqld1 | online |
| mysqld2 | online |
+---------------+--------+
2 rows in set (0.00 sec)
查看实例的版本信息
mysql> show instance status mysqld2;
+---------------+--------+----------------+------------------------------------------------------------------------------------------+-------------------+
| instance_name | state | version_number | version | mysqld_compatible |
+---------------+--------+----------------+------------------------------------------------------------------------------------------+-------------------+
| mysqld2 | online | 5.1.23 | 5.1.23a-maria-alpha for redhat-linux-gnu on i686 (MySQL Community Server [Maria] (GPL))
| no |
+---------------+--------+----------------+------------------------------------------------------------------------------------------+-------------------+
1 row in set (0.00 sec)
也可以显示实例的选项信息。
mysql> show instance options mysqld1;
+-----------------------+-----------------------------------+
| option_name | value |
+-----------------------+-----------------------------------+
| instance_name | mysqld1 |
| basedir | /usr/local/mysql
1、MySQL实例管理器(IM)是通过TCP/IP端口运行的后台程序,用来监视和管理MySQL数据库服务器实例。(如果你之前用过MYSQLD_MULTI就很清楚了。)
2、如果IM挂了,则所有的实例就挂掉了;如果实例挂了,IM会尝试重新启动它。
3、IM读取配置文件比如MY.CNF的[manager]段。
4、此例是在LINUX下试验的,其他的系统手册上有详细介绍。
二、一些详细配置。
1、
以下是我的配置文件
[manager]
user=mysql
default-mysqld-path = /usr/local/mysql/bin/mysqld
socket=/tmp/manager.sock
pid-file=/tmp/manager.pid
password-file = /etc/mysqlmanager.passwd
monitoring-interval = 2
port = 1999
bind-address = 192.168.0.231
log = /usr/local/mysql/bin/mysqlmanager.log
run-as-service = true
[mysqld1]
...
[mysqld2]
...
这个有两个配置实例,具体就不说了。见我的安装多个实例的文章。
具体含义查看mysqlmanager --help
2、密码文件。
IM将用户信息保存到密码文件中。密码文件的默认位置为/etc/mysqlmanager.passwd。
密码应类似于:
petr:*35110DC9B4D8140F5DE667E2
我的mysqlmanager.passwd内容
user_all:*6BB4837EB74329105EE4568D
3、启动IM。
[root@localhost tmp]# /usr/local/mysql/bin/mysqlmanager
WARNING: This program is deprecated and will be removed in 6.0.
[2483/3086632640] [08/04/24 14:24:50] [INFO] IM: started.
[2483/3086632640] [08/04/24 14:24:50] [INFO] Loading config file 'my.cnf'...
[2483/3086632640] [08/04/24 14:24:50] [INFO] Manager: initializing...
[2483/3086632640] [08/04/24 14:24:50] [INFO] Manager: detected threads model: POSIX threads.
[2483/3086632640] [08/04/24 14:24:50] [INFO] Loading the password database...
[2483/3086632640] [08/04/24 14:24:50] [INFO] Loaded user 'user_all'.
[2483/3086632640] [08/04/24 14:24:50] [INFO] The password database loaded successfully.
[2483/3086632640] [08/04/24 14:24:50] [INFO] Manager: pid file (/tmp/manager.pid) created.
[2483/3086632640] [08/04/24 14:24:50] [INFO] mysqld instance 'mysqld1' has been added successfully.
[2483/3086632640] [08/04/24 14:24:50] [INFO] mysqld instance 'mysqld2' has been added successfully.
[2483/3076139920] [08/04/24 14:24:50] [INFO] Guardian: started.
[2483/3076139920] [08/04/24 14:24:50] [INFO] Guardian: starting 'mysqld1'...
[2483/3076058000] [08/04/24 14:24:50] [INFO] Instance 'mysqld1': Monitor: started.
[2483/3076058000] [08/04/24 14:24:50] [INFO] Instance 'mysqld1': Monitor: starting mysqld...
[2483/3076139920] [08/04/24 14:24:50] [INFO] Guardian: starting 'mysqld2'...
[2483/3076058000] [08/04/24 14:24:50] [INFO] Instance 'mysqld1': Monitor: waiting for mysqld to stop...
[2483/3075894160] [08/04/24 14:24:50] [INFO] Instance 'mysqld2': Monitor: started.
[2483/3075894160] [08/04/24 14:24:50] [INFO] Instance 'mysqld2': Monitor: starting mysqld...
[2483/3075894160] [08/04/24 14:24:50] [INFO] Instance 'mysqld2': Monitor: waiting for mysqld to stop...
[2483/3086632640] [08/04/24 14:24:50] [INFO] Manager: started.
[2483/3075976080] [08/04/24 14:24:50] [INFO] Listener: started.
[2483/3075976080] [08/04/24 14:24:50] [INFO] Listener: accepting connections on ip socket (port: 1999)...
[2483/3075976080] [08/04/24 14:24:50] [INFO] Listener: accepting connections on unix socket '/tmp/manager.sock'...
...
InnoDB: than specified in the .cnf file 0 5242880 bytes!
080424 14:24:50
080424 14:24:50 [Note] Event Scheduler: Loaded 0 events
080424 14:24:50 [Note] /usr/local/mysql/bin/mysqld: ready for connections.
Version: '5.1.23a-maria-alpha-log'
080424 14:24:50 [Warning] 'user' entry 'root@localhost.localdomain' ignored in --skip-name-resolve mode.
080424 14:24:50 [Warning] 'user' entry '@localhost.localdomain' ignored in --skip-name-resolve mode.
080424 14:24:50 [Note] Event Scheduler: Loaded 0 events
080424 14:24:50 [Note] /usr/local/mysql/bin/mysqld: ready for connections.
Version: '5.1.23a-maria-alpha-log'
[2483/3076139920] [08/04/24 14:24:52] [INFO] Guardian: 'mysqld1' is running, set state to STARTED.
4、连接IM。
[root@localhost ~]# mysql -uuser_all -p -S/tmp/manager.sock -P1999
三、用IM来管理MYSQL。
1、显示实例的状态和版本信息。
[root@localhost ~]# mysql -uuser_all -p -S/tmp/manager.sock -P1999
Enter password:
Welcome to the MySQL monitor.
Your MySQL connection id is 1
Server version: 1.0-beta
Type 'help;' or '\h' for help. Type '\c' to clear the buffer.
mysql> show instances;
+---------------+--------+
| instance_name | state
+---------------+--------+
| mysqld1
| mysqld2
+---------------+--------+
2 rows in set (0.00 sec)
关闭实例1
mysql> stop instance mysqld1;
Query OK, 0 rows affected (0.30 sec)
mysql> show instances;
+---------------+---------+
| instance_name | state
+---------------+---------+
| mysqld1
| mysqld2
+---------------+---------+
2 rows in set (0.00 sec)
开启实例1
mysql> start instance mysqld1;
Query OK, 0 rows affected (0.00 sec)
Instance started
mysql> show instances;
+---------------+--------+
| instance_name | state
+---------------+--------+
| mysqld1
| mysqld2
+---------------+--------+
2 rows in set (0.00 sec)
查看实例的版本信息
mysql> show instance status mysqld2;
+---------------+--------+----------------+------------------------------------------------------------------------------------------+-------------------+
| instance_name | state
+---------------+--------+----------------+------------------------------------------------------------------------------------------+-------------------+
| mysqld2
+---------------+--------+----------------+------------------------------------------------------------------------------------------+-------------------+
1 row in set (0.00 sec)
也可以显示实例的选项信息。
mysql> show instance options mysqld1;
+-----------------------+-----------------------------------+
| option_name
+-----------------------+-----------------------------------+
| instance_name
| basedir