mysqld_multi部署mysql单机多实例

1.安装gcc-c++、ncurses依赖包

# yum install gcc-c++  ncurses-devel

2.安装cmake，用来编译mysql

# tar -xvf cmake-3.2.0-.tar.gz
# mv cmake-3.2.0 cmake
# mv cmake /tmp/
# cd /tmp/cmake/
# ./bootstrap
# make
# make install
# cmake --version

3.安装bison

# tar -xvf bison-3.0.tar.gz
# mv bison-3.0 bison
# mv bison /tmp
# cd /tmp/bison/
# ./cofigure
# make
# make install
# bison --version

4.创建mysql用户

# /usr/sbin/groupadd mysql
# useradd -s /sbin/nologin -g  mysql -M mysql

5.编译安装

配置

# cmake -DCMAKE_INSTALL_PREFIX=/usr/local/mysql \
-DMYSQL_UNIX_ADDR=/tmp/mysqld.sock \
-DDEFAULT_CHARSET=utf8 \
-DDEFAULT_COLLATION=utf8_general_ci \
-DEXTRA_CHARSETS=all \
-DWITH_EXTRA_CHARSETS:STRING=utf8,gbk \
-DWITH_MYISAM_STORAGE_ENGINE=1 \
-DWITH_INNOBASE_STORAGE_ENGINE=1 \
-DENABLED_LOCAL_INFILE=1 \
-DMYSQL_TCP_PORT=3306 \
-DMYSQL_USER=mysql \

生成可执行文件

# make

安装

# make install

6.创建多实例的数据文件目录

# mkdir -p /data/{3306,3307}/data/

7.初始化数据库,创建基础的数据库文件

# cd /usr/local/mysql/scripts/
#./mysql_install_db  --user=mysql --basedir=/usr/local/mysql --datadir=/data/3306/data/
#./mysql_install_db  --user=mysql --basedir=/usr/local/mysql --datadir=/data/3307/data/

8.配置多实例的文件权限
授权mysql用户和组管理多实例目录/data

# chown -R mysql.mysql /data

9.配置多实例的配置文件

# vim /etc/my.cnf
[mysqld_multi]
mysqld     = /usr/local/mysql/bin/mysqld_safe
mysqladmin = /usr/local/mysql/bin/mysqladmin
user       = multi_admin
password   = multipass   

[mysqld3306]
socket      	= /data/3306/data/mysql.sock
port        	= 3306
log-error   	= /data/3306/data/mysql.err
datadir     	= /data/3306/data/
pid-file     	= /data/3306/data/mysql.pid
log-bin     	= /data/3306/data/mysql-bin
relay_log     	= /data/3306/data/relay-bin
slow_query_log_file 	= /data/3306/data/slowquery.log
general_log_file     	= /data/3306/data/general.log
user       				= mysql   

[mysqld3307]
socket      	= /data/3307/data/mysql.sock
port        	= 3307
log-error   	= /data/3307/data/mysql.err
datadir     	= /data/3307/data/
pid-file     	= /data/3307/data/mysql.pid
log-bin     	= /data/3307/data/mysql-bin
relay_log     	= /data/3307/data/relay-bin
slow_query_log_file 	= /data/3307/data/slowquery.log
general_log_file     	= /data/3307/data/general.log
user       				= mysql

10.配置mysql命令的环境变量

# echo 'export PATH=/usr/local/mysql/bin:$PATH' >> /etc/profile
# source /etc/profile

11.启动
查看状态

# mysqld_multi --defaults-extra-file=/etc/my.cnf report
Reporting MySQL servers
MySQL server from group: mysqld3306 is not running
MySQL server from group: mysqld3307 is not running

启动实例

# mysqld_multi  start
# mysqld_multi --defaults-extra-file=/etc/my.cnf report
Reporting MySQL servers
MySQL server from group: mysqld3306 is running
MySQL server from group: mysqld3307 is running

12.修改的root用户的密码并且限制只能本机登陆

# mysqladmin -S /data/3306/data/mysql.sock -u root -h 'localhost' password 'XXXXXXXX'
# mysqladmin -S /data/3307/data/mysql.sock -u root -h 'localhost' password 'XXXXXXXX'

13.使用root用户登陆

# mysql -S  /data/3306/data/mysql.sock -u root -p
# mysql -S  /data/3307/data/mysql.sock -u root -p

14.创建关闭实例的用户

mysql> CREATE USER 'multi_admin'@'localhost' IDENTIFIED BY 'multipass';
mysql> GRANT SHUTDOWN ON *.* TO 'multi_admin'@'localhost';

14.停止实例
停止所有实例

# mysqld_multi  stop

停止实例1

# mysqld_mulit stop 3306

　

管理多实例的话可以使用mysqlmanager实例管理器，管理器来会比较方面