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mysql多实例部署

1.修改my.cnf
[MySQL]

[mysqld_multi]
mysqld = /usr/local/mysql/bin/mysqld_safe
mysqladmin = /usr/local/mysql/bin/mysqladmin
user =
password =

[mysqld1]
#explicit_defaults_for_timestamp=true
port = 3306
skip-name-resolve
server_id=1
datadir=/data/master
max_connections=3000
slow-query-log=on ##开启慢查询
slow-query-log-file=/var/log/mysql1/mysql-slow-queries.log
long_query_time=3
##开启二进制文件
log-bin=/data/master_binlog/mysql1_bin.log
log-bin-index=/data/master_binlog/binlog.index
binlog-do-db=ibuy
innodb_buffer_pool_size=2G #缓存
innodb_log_file_size = 512M
innodb_log_files_in_group = 3
innodb_additional_mem_pool_size = 64M
socket=/var/lib/mysql/mysql3306.sock
pid-file=/data/master/mysql.pid
#query_cache_size = 128M #查询缓存，合适查操作比较多的数据库
symbolic-links=0
sql_mode=STRICT_TRANS_TABLES,NO_ENGINE_SUBSTITUTION
log-error=/var/log/mysql1/mysqld.log
user=mysql




[mysqld2]
port=3307
server_id=2
explicit_defaults_for_timestamp=true
skip-name-resolve
datadir=/data/slave
max_connections=3000
slow-query-log=on ##开启慢查询
slow-query-log-file=/var/log/mysql2/mysql-slow-queries.log
long_query_time=3
log-bin=/data/slave_binlog/mysql_bin.log ##开启二进制文件
log-bin-index=/data/slave_binlog/binlog.index
binlog-do-db=ibuy
innodb_buffer_pool_size=3G #缓存
innodb_log_file_size = 512M
innodb_log_files_in_group = 3
innodb_additional_mem_pool_size = 64M
socket=/var/lib/mysql/mysql3307.sock
pid-file=/data/slave/mysql.pid
#query_cache_size =512M #查询缓存，合适查操作比较多的数据库
symbolic-links=0
sql_mode=STRICT_TRANS_TABLES,NO_ENGINE_SUBSTITUTION
log-error=/var/log/mysql2/mysqld.log
user=mysql

[mysqld_safe]
#max_allowed_packet=20480
#log-error=/var/log/mysql/mysqld.log
#pid-file=/var/run/mysqld/mysqld.pid

2.创建数据目录
		
    
			
			
  1. 
				mkdir -p /data/master
			
    2. 
			
  2. 
				mkdir -p /data/slave
			
    3. 
			
  3. 
				mkdir -p /data/master_binlog
			
    4. 
			
  4. 
				mkdir -p /data/slave_binlog
			
    5. 
			
  5. 
				mkdir /var/log/mysql1
			
    6. 
			
  6. 
				mkdir/var/log/mysql2
			
    7. 
			
  7. 
				chown mysql.mysql /data/master -R
			
    8. 
			
  8. 
				chown mysql.mysql /data/slave -R
			
    9. 
			
  9. 
				chmod 777 /var/log/mysql1
			
    10. 
			
  10. 
				chmod 777/var/log/mysql2
			
    11. 
			
  11. 
				chmod 777 /var/lib/mysql
			
    12.
3.初始化DB 
/usr/local/mysql/scripts/mysql_install_db--datadir=/data/master
/usr/local/mysql/scripts/mysql_install_db--datadir=/data/slave
4. 安装工具
	
    
		
		
  1. 
			cp /usr/local/mysql/bin/my_print_defaults /usr/bin/
		
    2. 
		
  2. 
			cp /usr/local/mysql/bin/mysqld_multi /usr/bin
		
    3.
5.修改环境变量
#vim /etc/profile
PATH=$PATH:/usr/local/mysql/bin
export PATH


1.mysql启动

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  1. 
			mysqld_multi start 1 启动实例1
		
    2. 
		
  2. 
			mysqld_multi start 1-2 启动实例1,2
		
    3.

2.命令行登陆 

	
    
		
		
  1. 
			mysql -u your_user -p your_password -P3307 -S /tmp/mysql3307.sock
		
    2. 
	

	
		
	

	
		由于涉及权限问题，mysqld_multi不能控制关闭mysql多实例，自己写了个关闭脚本
	

	
		
	

	
		
		
#!/bin/bash

		

		
user=""

		
password=""

		
read -p "Please input mysqld ID 1-2:" ID

		
if [ "$ID" == "1" ]; then

		
#read -p "Please input mysqld port number 3306-3307:" port

		
/usr/local/mysql/bin/mysqladmin -u$user -p$password -S /var/lib/mysql/mysql3306.sock shutdown && echo "close mysqld master successful"

		
elif [ "$ID" == "2" ]; then

		
/usr/local/mysql/bin/mysqladmin -u$user -p$password -S /var/lib/mysql/mysql3307.sock shutdown && echo "close mysqld slave successful"

		
else

		
echo "Please input mysqld ID 1-2:"

		
fi

标题名称：mysql多实例部署
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