MySQL多实例安装部署
[*] 解压 MySQL 5.7 二进制包到指定目录
# tar zxvf mysql-5.7.18-linux-glibc2.5-x86_64.tar.gz -C /usr/local/
[*] 创建 MySQL 软链接
#mv /usr/local/mysql-5.7.18-linux-glibc2.5-x86_64 /usr/local/mysql
[*] 创建 MySQL 用户
#groupadd -r mysql
# useradd -r -g mysql -s /bin/false -M mysql
[*] 在 MySQL 二进制包目录中创建 mysql-files 目录
# mkdir -v /usr/local/mysql/mysql-files
mkdir: created directory `/usr/local/mysql/mysql-files'
[*] 创建多实例数据目录
# mkdir -vp /data/mysql_data{1..4}
mkdir: created directory /data' mkdir: created directory/data/mysql_data1'
mkdir: created directory /data/mysql_data2' mkdir: created directory/data/mysql_data3'
mkdir: created directory `/data/mysql_data4'
[*] 修改 MySQL 二进制包目录的所属用户与所属组
1 # chown root.mysql -R /usr/local/mysql
[*] 修改 MySQL 多实例数据目录与 数据导入/导出专放目录的所属用户与所属组
# chown mysql.mysql -R /usr/local/mysql/mysql-files /data/mysql_data{1..4}
[*]配置 MySQL 配置文件 /etc/my.cnf
mysqld = /usr/local/mysql/bin/mysqld
mysqladmin = /usr/local/mysql/bin/mysqladmin
log = /tmp/mysql_multi.log
# 设置数据目录 [多实例中一定要不同]
datadir = /data/mysql_data1
# 设置sock存放文件名 [多实例中一定要不同]
socket = /tmp/mysql.sock1
# 设置监听开放端口 [多实例中一定要不同]
port = 3306
# 设置运行用户
user = mysql
# 关闭监控
performance_schema = off
# 设置innodb 缓存大小
innodb_buffer_pool_size = 32M
# 设置监听IP地址
bind_address = 0.0.0.0
# 关闭DNS 反向解析
skip-name-resolve = 0 **
datadir = /data/mysql_data2
socket = /tmp/mysql.sock2
port = 3307
user = mysql
performance_schema = off
innodb_buffer_pool_size = 32M
bind_address = 0.0.0.0
skip-name-resolve = 0
datadir = /data/mysql_data3
socket = /tmp/mysql.sock3
port = 3308
user = mysql
performance_schema = off
innodb_buffer_pool_size = 32M
bind_address = 0.0.0.0
skip-name-resolve = 0
datadir = /data/mysql_data4
socket = /tmp/mysql.sock4
port = 3309
user = mysql
performance_schema = off
innodb_buffer_pool_size = 32M
bind_address = 0.0.0.0
skip-name-resolve = 0
[*] 初始化各个实例 [ 初始化完成后会自带随机密码在输出日志中 ]
# /usr/local/mysql/bin/mysqld --initialize --user=mysql --basedir=/usr/local/mysql --datadir=/data/mysql_data1
# /usr/local/mysql/bin/mysqld --initialize --user=mysql --basedir=/usr/local/mysql --datadir=/data/mysql_data2
# /usr/local/mysql/bin/mysqld --initialize --user=mysql --basedir=/usr/local/mysql --datadir=/data/mysql_data3
# /usr/local/mysql/bin/mysqld --initialize --user=mysql --basedir=/usr/local/mysql --datadir=/data/mysql_data4
[*]各实例开启 SSL 连接 # /usr/local/mysql/bin/mysql_ssl_rsa_setup --user=mysql --basedir=/usr/local/mysql --datadir=/data/mysql_data1
# /usr/local/mysql/bin/mysql_ssl_rsa_setup --user=mysql --basedir=/usr/local/mysql --datadir=/data/mysql_data2
# /usr/local/mysql/bin/mysql_ssl_rsa_setup --user=mysql --basedir=/usr/local/mysql --datadir=/data/mysql_data3
# /usr/local/mysql/bin/mysql_ssl_rsa_setup --user=mysql --basedir=/usr/local/mysql --datadir=/data/mysql_data4
*修改环境变量
echo "export PATH=$PATH:/usr/local/mysql/bin" >> /etc/profile
source /etc/profile
[*] 复制多实例脚本到服务管理目录下 [ /etc/init.d/ ]
# cp /usr/local/mysql/support-files/mysqld_multi.server /etc/init.d/mysqld_multi
[*] 添加脚本执行权限
# chmod +x /etc/init.d/mysqld_multi
[*]添加进service服务管理 # chkconfig --add mysqld_multi
[*]启动测试
[*]查个多实例状态 # /etc/init.d/mysqld_multi report
Reporting MySQL servers
MySQL server from group: mysqld1 is not running
MySQL server from group: mysqld2 is not running
MySQL server from group: mysqld3 is not running
MySQL server from group: mysqld4 is not running
[*] 启动多实例
# /etc/init.d/mysqld_multi start
[*] 查看多实例状态
Reporting MySQL servers
MySQL server from group: mysqld1 is running
MySQL server from group: mysqld2 is running
MySQL server from group: mysqld3 is running
MySQL server from group: mysqld4 is running
[*]查看实例监听端口 # netstat -lntp | grep mysqld
tcp 0 0 0.0.0.0:3306 0.0.0.0: LISTEN 2673/mysqld
tcp 0 0 0.0.0.0:3307 0.0.0.0: LISTEN 2676/mysqld
tcp 0 0 0.0.0.0:3308 0.0.0.0: LISTEN 2679/mysqld
tcp 0 0 0.0.0.0:3309 0.0.0.0: LISTEN 2682/mysqld
[*]连接测试
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