更改 MySQL 集群用户的主机

Question

我有一个 MariaDB 集群，有时我需要为某些用户更改我的主机，但是，这些更改不会传播到整个集群。

假设UPDATE mysql.user SET host = '10.99.0.%' WHERE host = '%' AND user != 'root';

这是正常情况吗？我需要在每个集群成员中进行每个更改。

我做错了吗？

谢谢。

Answer 1

系统表是MyISAM，Galera默认不会复制MyISAM表的更新，是known limitation:

Currently replication works only with the InnoDB storage engine. Any writes to tables of other types, including system (mysql.*) tables are not replicated (this limitation excludes DDL statements such as CREATE USER, which implicitly modify the mysql.* tables — those are replicated). There is however experimental support for MyISAM - see the wsrep_replicate_myisam system variable)

如果您决定尝试 wsrep_replicate_myisam，请小心，"experimental" 表示不稳定，不建议用于生产。