mysql实现,一主多从+级联同步+双向同步

实验:

一主多从

3307配置:

[mysqld]

log-slave-updates #中间者需要开这个

log-bin = /data/3307/mysql-bin

expire_logs_days = 7                 #binlog保存多少天 find –mtime +7

防止从库被写忽略同步db.或者从库回收权限:

[mysqld]

slave-skip-errors = 1032,1062

replicate-ignore-db = mysql

binlog-ignore-db = mysql

binlog-ignore-db = information_schema

binlog-ignore-db = performance_schema

双向同步

3306

[mysqld]

log-bin = /data/3306/mysql-bin

log-slave-updates

3307

[mysqld]

log-bin = /data/3308/mysql-bin

log-slave-updates