Ubuntu搭建Mysql+Keepalived高可用(双主热备)

sudo apt-get remove mysql-*

dpkg -l |grep ^rc|awk ‘{print $2}’ |sudo xargs dpkg -P

配置权限

vim /etc/mysql/my.cnf

#bind-address = 127.0.0.1

mysql -u root -p

grant all on . to root@‘%’ identified by ‘root’ with grant option;

flush privileges;

配置两台Mysql主主同步

配置节点1

vim /etc/mysql/my.cnf

server-id = 1 #节点ID

log_bin = mysql-bin.log #日志

binlog_format = “ROW” #日志格式

auto_increment_increment = 2 #自增ID间隔(=节点数，防止ID冲突)

auto_increment_offset = 1 #自增ID起始值(节点ID)

binlog_ignore_db=mysql #不同步的数据库

binlog_ignore_db=information_schema

binlog_ignore_db=performance_schema

重启mysql

service mysql restart

mysql -u root -p

记录节点1的binlog日志位置

show master status;

mysql-bin.000001 245 mysql,information_schema,performance_schema

配置节点2

vim /etc/mysql/my.cnf

server-id = 2

log_bin = mysql-bin.log

relay_log = mysql-relay-bin.log #中继日志

log_slave_updates = ON #中继日志执行后，变化计入日志

read_only = 0

binlog_format = “ROW”

auto_increment_increment = 2

auto_increment_offset = 2

binlog_ignore_db=mysql

binlog_ignore_db=information_schema