假設三節點MGR某個節點異常,須要從新把這個節點加入到MGR集羣中,具體操做過程以下:mysql
貢獻者端執行(192.168.1.11) DROP USER 'donor_clone_user'@'192.168.1.12'; CREATE USER 'donor_clone_user'@'192.168.1.12' IDENTIFIED BY 'password'; GRANT BACKUP_ADMIN on *.* to 'donor_clone_user'@'192.168.1.12'; INSTALL PLUGIN clone SONAME 'mysql_clone.so'; 接收者端執行(192.168.1.12) DROP USER 'recipient_clone_user'@'192.168.1.12'; CREATE USER 'recipient_clone_user'@'192.168.1.12' IDENTIFIED BY 'password'; GRANT CLONE_ADMIN on *.* to 'recipient_clone_user'@'192.168.1.12'; INSTALL PLUGIN clone SONAME 'mysql_clone.so'; SET GLOBAL clone_valid_donor_list = '192.168.1.11:3311'; exit mysql -urecipient_clone_user -ppassword -h 192.168.1.12 -P3311 CLONE INSTANCE FROM 'donor_clone_user'@'192.168.1.11':3311 IDENTIFIED BY 'password'; exit mysql -uroot -p start group_replication; select * from performance_schema.replication_group_members;