MYSQL主从:主(新范例)-主(新实例,只读)
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MYSQL主从:主(新实例)--主(新实例,只读)
一、一台机器安装两个实例(3307、3308)
按照http://babaoqi.iteye.com/admin/blogs/1954110方法搭建mysqld3308
二、搭建双主:3307、3308(只读)
# 关闭两个mysql服务
service mysqld3307 stop; service mysqld3308 stop;
# 配置3307 my.cnf
vim /home/bbq/mysql/mysql-3307/cnf/my.cnf
log-bin=mysql-bin
binlog_format=mixed
auto_increment_increment=2
auto_increment_offset=1
# 主库执行show slave hosts显示使用
report_host=localhost #本机地址
report_port=3307 #本实例端口
log_slave_updates
server-id = 3307
# 配置3308 my.cnf
vim /home/bbq/mysql/mysql-3308/cnf/my.cnf
log-bin=mysql-bin
binlog_format=mixed
auto_increment_increment=2
auto_increment_offset=2
read_only
# 主库执行show slave hosts显示使用
report_host=localhost #本机地址
report_port=3308 #本实例端口
log_slave_updates
server-id = 3308
# 启动两个mysql服务
service mysqld3307 start; service mysqld3308 start;
# 进入两个实例的根目录
cd /home/bbq/mysql
# 授权同步账户
mysql-3307/install/bin/mysql -uroot -ppwd -e "GRANT REPLICATION SLAVE on *.* to 'repl'@'%' identified by 'repl@pwd'; FLUSH PRIVILEGES;"
mysql-3308/install/bin/mysql -uroot -ppwd -e "GRANT REPLICATION SLAVE on *.* to 'repl'@'%' identified by 'repl@pwd'; FLUSH PRIVILEGES;"
# 生成新的binlog
mysql-3307/install/bin/mysql -uroot -ppwd -e "FLUSH binary logs;"
mysql-3308/install/bin/mysql -uroot -ppwd -e "FLUSH binary logs;"
# 设置同步起始位置。在3307、3308上分别执行'SHOW MASTER STATUS',记录File,Position
# CHANGE MASTER TO master_host='主库IP′,master_port=主库端口, master_user='同步账号名称',master_password='同步账号密码', master_log_file='master-file',master_log_pos=master-Position;
# 此例File=mysql-bin.000003,Position=107
mysql-3307/install/bin/mysql -uroot -ppwd -e "CHANGE MASTER TO master_host='localhost',master_port=3308, master_user='repl',master_password='repl@pwd', master_log_file='mysql-bin.000003',master_log_pos=107;"
mysql-3308/install/bin/mysql -uroot -ppwd -e "CHANGE MASTER TO master_host='localhost',master_port=3307, master_user='repl',master_password='repl@pwd', master_log_file='mysql-bin.000003',master_log_pos=107;"
# 查看同步状态
mysql-3307/install/bin/mysql -uroot -ppwd -e "START SLAVE;SELECT SLEEP(1);SHOW SLAVE STATUS\G;"
mysql-3308/install/bin/mysql -uroot -ppwd -e "START SLAVE;SELECT SLEEP(1);SHOW SLAVE STATUS\G;"
若是SQL线程(Slave_IO_Running)和I/O线程(Slave_SQL_Running)都显示为YES状态,则搭建成功.
一、一台机器安装两个实例(3307、3308)
按照http://babaoqi.iteye.com/admin/blogs/1954110方法搭建mysqld3308
二、搭建双主:3307、3308(只读)
# 关闭两个mysql服务
service mysqld3307 stop; service mysqld3308 stop;
# 配置3307 my.cnf
vim /home/bbq/mysql/mysql-3307/cnf/my.cnf
log-bin=mysql-bin
binlog_format=mixed
auto_increment_increment=2
auto_increment_offset=1
# 主库执行show slave hosts显示使用
report_host=localhost #本机地址
report_port=3307 #本实例端口
log_slave_updates
server-id = 3307
# 配置3308 my.cnf
vim /home/bbq/mysql/mysql-3308/cnf/my.cnf
log-bin=mysql-bin
binlog_format=mixed
auto_increment_increment=2
auto_increment_offset=2
read_only
# 主库执行show slave hosts显示使用
report_host=localhost #本机地址
report_port=3308 #本实例端口
log_slave_updates
server-id = 3308
# 启动两个mysql服务
service mysqld3307 start; service mysqld3308 start;
# 进入两个实例的根目录
cd /home/bbq/mysql
# 授权同步账户
mysql-3307/install/bin/mysql -uroot -ppwd -e "GRANT REPLICATION SLAVE on *.* to 'repl'@'%' identified by 'repl@pwd'; FLUSH PRIVILEGES;"
mysql-3308/install/bin/mysql -uroot -ppwd -e "GRANT REPLICATION SLAVE on *.* to 'repl'@'%' identified by 'repl@pwd'; FLUSH PRIVILEGES;"
# 生成新的binlog
mysql-3307/install/bin/mysql -uroot -ppwd -e "FLUSH binary logs;"
mysql-3308/install/bin/mysql -uroot -ppwd -e "FLUSH binary logs;"
# 设置同步起始位置。在3307、3308上分别执行'SHOW MASTER STATUS',记录File,Position
# CHANGE MASTER TO master_host='主库IP′,master_port=主库端口, master_user='同步账号名称',master_password='同步账号密码', master_log_file='master-file',master_log_pos=master-Position;
# 此例File=mysql-bin.000003,Position=107
mysql-3307/install/bin/mysql -uroot -ppwd -e "CHANGE MASTER TO master_host='localhost',master_port=3308, master_user='repl',master_password='repl@pwd', master_log_file='mysql-bin.000003',master_log_pos=107;"
mysql-3308/install/bin/mysql -uroot -ppwd -e "CHANGE MASTER TO master_host='localhost',master_port=3307, master_user='repl',master_password='repl@pwd', master_log_file='mysql-bin.000003',master_log_pos=107;"
# 查看同步状态
mysql-3307/install/bin/mysql -uroot -ppwd -e "START SLAVE;SELECT SLEEP(1);SHOW SLAVE STATUS\G;"
mysql-3308/install/bin/mysql -uroot -ppwd -e "START SLAVE;SELECT SLEEP(1);SHOW SLAVE STATUS\G;"
若是SQL线程(Slave_IO_Running)和I/O线程(Slave_SQL_Running)都显示为YES状态,则搭建成功.
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