如何使用proxysql 1.4.14中间件实现mysql 5.7.26主从的读写分离
发布时间:2022-01-12 12:18:10 所属栏目:MySql教程 来源:互联网
导读:这篇文章将为大家详细讲解有关如何使用proxysql 1.4.14中间件实现mysql 5.7.26主从的读写分离,小编觉得挺实用的,因此分享给大家做个参考,希望大家阅读完这篇文章后可以有所收获。 准备条件 操作系统 redhat 6.9 数据库 mysql 5.7.26 中间件 proxysql 1.4.
这篇文章将为大家详细讲解有关如何使用proxysql 1.4.14中间件实现mysql 5.7.26主从的读写分离,小编觉得挺实用的,因此分享给大家做个参考,希望大家阅读完这篇文章后可以有所收获。 准备条件 操作系统 redhat 6.9 数据库 mysql 5.7.26 中间件 proxysql 1.4.14 已配置mysql一主一从,具体见下 数据库读写分离整体架构 编号 服务器角色 ip地址 端口 1 proxysql 10.0.0.13 6032,6033(注:6032是proxysql的管理端口,6033是proxysql对外服务的端口) 2 mysql主库 10.0.0.11 3306 3 mysql从库 10.0.0.12 3306 配置数据库读写分离 1,登陆中间件proxysql [root@mysqlclient ~]# mysql -uadmin -padmin -h227.0.0.1 -P6032 2,配置用于读写分离的不同的主机组,10用于mysql主库的主机组,20用于mysql从库的主机组 mysql> insert into mysql_replication_hostgroups values(10,20,'use for msyql primary replication'); Query OK, 1 row affected (0.00 sec) mysql> select * from mysql_replication_hostgroups; +------------------+------------------+-----------------------------------+ | writer_hostgroup | reader_hostgroup | comment | +------------------+------------------+-----------------------------------+ | 10 | 20 | use for msyql primary replication | +------------------+------------------+-----------------------------------+ 1 row in set (0.00 sec) 3,登陆mysql主库创建用于监控mysql主从库read_only是否只读的数据库用户monitor mysql>grant replication client on *.* to 'monitor'@'10.0.0.13' identified by 'monitor'; Query OK, 0 rows affected (0.02 sec) 4,登陆mysql从库确认read_only=on只读 mysql> show global variables like 'read_only'; +---------------+-------+ | Variable_name | Value | +---------------+-------+ | read_only | ON | +---------------+-------+ 1 row in set (0.00 sec) 5,登陆中间件proxysql配置用于监控mysql的数据库用户及密码 (注:对应上述第3步配置的数据库用户) mysql> select * from main.global_variables where variable_name in ('mysql-monitor_username','mysql-monitor_password'); +------------------------+----------------+ | variable_name | variable_value | +------------------------+----------------+ | mysql-monitor_password | monitor | | mysql-monitor_username | monitor | +------------------------+----------------+ 2 rows in set (0.00 sec) --如果配置的数据库用户密码不对,根据实际情况进行调整 mysql> set mysql-monitor_username='monitor'; Query OK, 1 row affected (0.00 sec) mysql> set mysql-monitor_password='monitor'; Query OK, 1 row affected (0.00 sec) --持久化 mysql> load mysql variables to runtime; Query OK, 0 rows affected (0.00 sec) mysql> save mysql variables to disk; Query OK, 97 rows affected (0.02 sec) 6,配置mysql主从节点与主机组的对应关系 (注:不同的mysql节点对应不同的主机组,实现读写分离) mysql> insert into mysql_servers(hostgroup_id,hostname,port) values(10,'10.0.0.11',3306); Query OK, 1 row affected (0.00 sec) mysql> insert into mysql_servers(hostgroup_id,hostname,port) values(20,'10.0.0.12',3306); Query OK, 1 row affected (0.00 sec) 持久化 mysql> load mysql servers to runtime; Query OK, 0 rows affected (0.01 sec) mysql> save mysql servers to disk; Query OK, 0 rows affected (0.03 sec) mysql> select * from mysql_servers; +--------------+-----------+------+--------+--------+-------------+-----------------+---------------------+---------+----------------+---------+ | hostgroup_id | hostname | port | status | weight | compression | max_connections | max_replication_lag | use_ssl | max_latency_ms | comment | +--------------+-----------+------+--------+--------+-------------+-----------------+---------------------+---------+----------------+---------+ | 10 | 10.0.0.11 | 3306 | ONLINE | 1 | 0 | 1000 | 0 | 0 | 0 | | | 20 | 10.0.0.12 | 3306 | ONLINE | 1 | 0 | 1000 | 0 | 0 | 0 | | +--------------+-----------+------+--------+--------+-------------+-----------------+---------------------+---------+----------------+---------+ 2 rows in set (0.00 sec) 7,登陆mysql主库创建用于读写分离的数据库用户 --读写数据库用户 mysql> grant all on *.* to rwuser@'10.0.0.11' identified by 'system'; Query OK, 0 rows affected (0.02 sec) --只读数据库用户 mysql> grant all on *.* to rouser@'10.0.0.12' identified by 'system'; Query OK, 0 rows affected (0.01 sec) 8,登陆中间件proxysql配置数据库用户与主机组的对应关系,即不同的数据库用户可以导流到不同的mysql主从的节点上 mysql> insert into mysql_users(username,password,default_hostgroup) values('rwuser','system',10); Query OK, 1 row affected (0.00 sec) mysql> insert into mysql_users(username,password,default_hostgroup) values('rouser','system',20); Query OK, 1 row affected (0.00 sec) --持久化 mysql> load mysql users to runtime; Query OK, 0 rows affected (0.00 sec) mysql> save mysql users to disk; Query OK, 0 rows affected (0.02 sec) mysql> select * from mysql_users; +----------+----------+--------+---------+-------------------+----------------+---------------+------------------------+--------------+---------+----------+-----------------+ | username | password | active | use_ssl | default_hostgroup | default_schema | schema_locked | transaction_persistent | fast_forward | backend | frontend | max_connections | +----------+----------+--------+---------+-------------------+----------------+---------------+------------------------+--------------+---------+----------+-----------------+ | rwuser | system | 1 | 0 | 10 | NULL | 0 | 1 | 0 | 1 | 1 | 10000 | | rouser | system | 1 | 0 | 20 | NULL | 0 | 1 | 0 | 1 | 1 | 10000 | +----------+----------+--------+---------+-------------------+----------------+---------------+------------------------+--------------+---------+----------+-----------------+ 2 rows in set (0.00 sec) 9,客户端使用不同的数据库用户登陆中间件,实现mysql主从库的读写分离 (注:rwuser数据库用户访问mysql主库,rouser数据库用户访问mysql从库) [root@mysqlclient proxydir]# mysql -urwuser -psystem -h227.0.0.1 -P6033 -e 'select @@server_id' Warning: Using a password on the command line interface can be insecure. +-------------+ | @@server_id | +-------------+ | 1 | +-------------+ [root@mysqlclient proxydir]# mysql -urouser -psystem -h227.0.0.1 -P6033 -e 'select @@server_id' Warning: Using a password on the command line interface can be insecure. +-------------+ | @@server_id | +-------------+ | 2 | +-------------+ [root@mysqlclient proxydir]# 关于“如何使用proxysql 1.4.14中间件实现mysql 5.7.26主从的读写分离”这篇文章就分享到这里了,希望以上内容可以对大家有一定的帮助,使各位可以学到更多知识,如果觉得文章不错,请把它分享出去让更多的人看到。 (编辑:威海站长网) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |