假设三节点mgr某个节点异常,需要重新把这个节点加入到mgr集群中,具体操作过程如下:
贡献者端执行(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';
接收者端执行(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;
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