MySQL5.7的多源複製

• 2019 年 10 月 4 日
• 筆記

MySQL5.7多源複製的實驗

環境：

node1: 192.168.2.171 主庫1

node3: 192.168.2.170 主庫2

node2: 192.168.2.172 歸檔用的從庫

1、node2上需要配置複製過濾掉mysql庫：

replicate_wild_ignore_table=mysql.% 

replicate_wild_ignore_table=test.%

### 5.7上可以直接使用 stop slave; CHANGE REPLICATION FILTER REPLICATE_WILD_IGNORE_TABLE = ('mysql.%','test.%');  start salve;動態修改複製過濾庫。

2、先將node1、node3上的備份mysqldump -uxx -pxx -q –single-transaction –master-data=2 導入到node2上。

3、在node2上配置主從複製

node2上執行：

change master to 

  master_host='192.168.2.171',

  master_user='rpl',

  master_password='rpl',

  master_port=3306,

  master_log_file='mysql-bin.000001',

  master_log_pos=4 for channel 'master-1';

change master to 

  master_host='192.168.2.170',

  master_user='rpl',

  master_password='rpl',

  master_port=3306,

  master_log_file='mysql-bin.000001',

  master_log_pos=12 for channel 'master-2';

啟動複製：

start slave for channel 'master-1';

start slave for channel 'master-2';

查看狀態：

show slave status for channel 'master-1'G

show slave status for channel 'master-2'G

停止：

stop slave for channel 'master-1';

stop slave for channel 'master-2';

清空同步資訊和日誌：

reset slave for channel 'master-1';

reset slave for channel 'master-2';

刷下relaylog：

flush relay logs for channel 'master-1';

flush relay logs for channel 'master-2';