centos 安装多实例数据库

=/usr/local/tarsPkg/mysql-5.7.22-linux-glibc2.12-x86_64 yum install mysql-devel ## 创建 MySQL 软链接 ln -s ${baseMysqlDir} /usr/local/mysql ##创建 MySQL 用户 useradd -r -s /sbin/nologin mysql ## 在 MySQL 二进制包目录中创建 mysql-files 目录 mkdir -v /usr/local/mysql/mysql-files ## 创建多实例数据目录 mkdir -vp /data/mysql_data{1..4} ## 修改 MySQL 二进制包目录的所属用户与所属组 chown root.mysql -R ${baseMysqlDir} ## 修改 MySQL 多实例数据目录与 数据导入/导出专放目录的所属用户与所属组 chown mysql.mysql -R /usr/local/mysql/mysql-files /data/mysql_data{1..4} ## 初始化各个实例 [ 初始化完成后会自带随机密码在输出日志中 ] /usr/local/mysql/bin/mysqld --initialize --user=mysql --basedir=/usr/local/mysql --datadir=/data/mysql_data1 /usr/local/mysql/bin/mysqld --initialize --user=mysql --basedir=/usr/local/mysql --datadir=/data/mysql_data2 /usr/local/mysql/bin/mysqld --initialize --user=mysql --basedir=/usr/local/mysql --datadir=/data/mysql_data3 /usr/local/mysql/bin/mysqld --initialize --user=mysql --basedir=/usr/local/mysql --datadir=/data/mysql_data4 ## 各实例开启 SSL 连接 /usr/local/mysql/bin/mysql_ssl_rsa_setup --user=mysql --basedir=/usr/local/mysql --datadir=/data/mysql_data1 /usr/local/mysql/bin/mysql_ssl_rsa_setup --user=mysql --basedir=/usr/local/mysql --datadir=/data/mysql_data2 /usr/local/mysql/bin/mysql_ssl_rsa_setup --user=mysql --basedir=/usr/local/mysql --datadir=/data/mysql_data3 /usr/local/mysql/bin/mysql_ssl_rsa_setup --user=mysql --basedir=/usr/local/mysql --datadir=/data/mysql_data4 ## 添加mysql 到path echo "PATH=/usr/local/mysql/bin:$PATH" >> /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 export PATH=/usr/local/mysql/bin:$PATH ## 查个多实例状态 /etc/init.d/mysqld_multi report

 

 

③ 将脚本和安装包放置同一目录

 

 

④ 编写my.cnf文件并放置在/etc/ 目录下

[mysqld_multi]
mysqld    = /usr/local/mysql/bin/mysqld 
mysqladmin = /usr/local/mysql/bin/mysqladmin
log        = /tmp/mysql_multi.log
[mysqld1]
federated
# 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
max_connections=1000
sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES 
explicit_defaults_for_timestamp=true
tmpdir=/data/mysql_data1
character_set_server = utf8mb4
[mysqld2]
datadir = /data/mysql_data2
socket = /tmp/mysql.sock2
tmpdir=/data/mysql_data2
port = 3307
user = mysql
performance_schema = off
innodb_buffer_pool_size = 32M
bind_address = 0.0.0.0
skip-name-resolve = 0
sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES 
explicit_defaults_for_timestamp=true
lower_case_table_names = 1
[mysqld3]
datadir = /data/mysql_data3
socket = /tmp/mysql.sock3
tmpdir=/data/mysql_data3
port = 3308
user = mysql
performance_schema = off
innodb_buffer_pool_size = 32M
bind_address = 0.0.0.0
skip-name-resolve = 0
sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES 
explicit_defaults_for_timestamp=true
lower_case_table_names = 1 
[mysqld4]
datadir = /data/mysql_data4
socket = /tmp/mysql.sock4
tmpdir=/data/mysql_data4
port = 3309
user = mysql
performance_schema = off
innodb_buffer_pool_size = 32M
bind_address = 0.0.0.0
skip-name-resolve = 0
sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES
explicit_defaults_for_timestamp=true

 

⑤ 赋予脚本运行权限并运行

 

 

执行结果：

 

 

⑥ 修改默认密码

 

 

记得修改每一个默认密码哦

centos 安装多实例数据库

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