Mysql主从数据同步cheksum问题

做主从同步时出现问题,show slave status显示错误:

Last_IO_Error: Got fatal error 1236 from master when reading data from binary log: 'Slave can not handle replication events with the checksum that master is configured to log; the first event 'mysql-bin.000006' at 120, the last event read from './mysql-bin.000006' at 120, the last byte read from './mysql-bin.000006' at 120.

网上搜到很多方法都未能解决,最后搜到外国问答网才知道是mysql的版本问题点此打开,大致意思就是:

主从版本分别为mysql5.5和mysql5.6,mysql5.6的binlog_checksum默认为crc32,而5.6以前的版本binlog_checksum设置为none,或者没有这个配置。

如果主从同步因此而出错,可以stop slave 停掉从库

设置mysql5.5set global binlog_checksum=NONE;

或者修改到my.cnf binlog_checksum=NONE

如果你的mysql5.5版本显示ERROR 1193 (HY000): Unknown system variable 'binlog_checksum',那就将mysql5.6的binlog_checksum设置为NONE即可。

 

设置后,

主:

flush logs;#刷新日志
flush tables with read lock;#锁定所有表
show master status\G #获取二进制日志信息和位置,给从看
unlock tables; #从库开启后解锁表

从:

change master to
master_host='',
master_user='',
master_password='',
master_log_file='',
master_log_pos=;

start slave;
show slave status\G

 

posted @ 2017-06-28 03:39  GaZeon  阅读(1654)  评论(0编辑  收藏  举报