啰嗦的话,不多说,我们直接开始部署,我相信有点linux基础的人都能看得懂。
Mysql5.7.22主从部署,既然是主从那肯定是需要至少2台服务器了,2台的安装都是一样的,请看下面!
1、 创建mysql用户:useradd -m -d /home/mysql mysql
2、 上传mysql-5.7.22-linux-glibc2.12-x86_64.tar.gz安装包到/app目录下。
附官方下载链接:https://dev.mysql.com/downloads/file/?id=476936
3、 解压安装包到/app目录下tar -zxvf mysql-5.7.22-linux-glibc2.12-x86_64.tar.gz
4、 将解压完的安装包重命名为:mysql5722
- mv mysql-5.7.22-linux-glibc2.12-x86_64 mysql5722
5、 进入mysql5722目录下创建data、logs目录。
- cd mysql5722/
- mkdir data && mkdir logs
6、 进入刚刚创建的logs目录下创建日志文件
- cd logs touch error.log && touch general.log
- 授权/app/mysql5722目录属主属组为mysql
- chown -R mysql:mysql /app/mysql5722
7、 进入mysql的bin目录下进行初始化设置:
- cd ../bin/ ./mysqld --initialize --user=mysql --basedir=/app/mysql5722/ --datadir=/app/mysql5722/data
注意:初始化的时候会提示root用户的默认密码记得保存,首次登陆需要。
8、 创建mysql配置文件:
- cd /etc/&& mv my.cnf my.cnf.bak
新建配置文件:touch my.cnf,内容如下:
Master节点配置文件内容:
- [mysqld]
- server-id=1
- log_bin=master-bin
- log_bin_index=master-bin.index
- binlog_do_db=mysql
- expire_logs_days=7
- #skip-grant-tables
- lower_case_table_names=1
- explicit_defaults_for_timestamp
- port = 3306
- datadir = /app/mysql5722/data
- socket = /app/mysql5722/mysql.sock
- user = mysql
- symbolic-links = 0
- basedir = /app/mysql5722
- big-tables
- character-set-server = utf8
- #general-log-file = /app/mysql5722/logs/general.log
- language = /app/mysql5722/share
- lc-messages-dir = /app/mysql5722/share
- general-log = on
- #GENERAL_LOG=ON
- general-log-file = /app/mysql5722/logs/mysqld.log
- slow-query-log = 1
- pid-file = /app/mysql5722/mysql.pid
- slow-query-log-file = /app/mysql5722/logs/mysqld_slow.log
- slave-load-tmpdir = /app/mysql5722/tmp
- plugin-dir = /app/mysql5722/lib/plugin
- max_connections = 1000
- #innodb
- #innodb_log_file_size=512M
- #innodb_buffer_pool_size=2G
- [mysqld_safe]
- log-error=/app/mysql5722/logs/mysql_error.log
- pid-file=/app/mysql5722/mysql.pid
- [client]
- port = 3306
- socket=/app/mysql5722/mysql.sock
- user=mysql
9、 配置启动命令:
- cd /app/mysql5722/support-files/
- cp mysql.server /etc/init.d/mysqld
- cd /etc/init.d/
修改mysqld配置文件内容添加如下两行信息:
10、 配置开机启动
- chkconfig --add mysqld
- chkconfig mysqld on
- chown -R mysql:mysql mysql5722/
11、 启动mysql数据库
- service mysqld start
12、 登录mysql
- ./mysql -uroot -p'LRabR;xaS9lh'
修改root默认密码,不然无法执行sql:
- ./mysql -uroot -p'LRabR;xaS9lh'
- 修改root默认密码,不然无法执行sql:
- alter user user() identified by "Abcd@123";修改root用户密码
- flush privileges;刷新
- user mysql;
- create user 'master'@'%' identified by 'Abcd@123';
- grant replication slave on *.* to 'master'@'%';
- flush privileges
- show master status;
备slave节点配置文件:
- [mysqld]
- server-id=2
- relay_log=slave-relay-bin
- relay_log_index=slave-relay-bin.index
- basedir=/app/mysql5722
- datadir=/app/mysql5722/data
- socket=/app/mysql5722/mysql.sock
- user=mysql
- character-set-server=utf8
- lower_case_table_names=1
- explicit_defaults_for_timestamp
- port=3306
- general-log=1
- general-log-file=/app/mysql5722/logs/general.log
- slow-query-log=1
- long_query_time=1
- slow_query_log_file=/app/mysql5722/slowquery.log
- pid-file=/app/mysql5722/mysql.pid
- slave-load-tmpdir=/app/mysql5722/slavetmp
- max_connections=1000
- # Disabling symbolic-links is recommended to prevent assorted security risks
- symbolic-links=0
- #skip-grant-tables
- [mysqld_safe]
- log-error=/app/mysql5722/logs/error.log
- pid-file=/app/mysql5722/mysql.pid
- [client]
- port=3306
- socket=/app/mysql5722/mysql.sock
- user=mysql
保存后重启从节点mysql。
备机:(slave)上配置:
登录mysql后执行:
- user mysql;
- change master to master_host='10.1.60.71',master_user='master',master_password='abcd@123',master_log_file='master-bin.000001',master_log_pos=154;
- show slave status\G;
保证如下两个值都为YES说明主从复制已经配置成功,需要注意的是两台服务器的防火墙策略,网络必须是互通的。
- Slave_IO_Running:YES
- Slave_SQL_Running:YES
当然此架构如果对外提供服务不想使用服务器的真实IP,你也可以安装keepalived做VIP对外进行提供服务!