After upgrade mysql-server from 5.6 to 5.7.10 something strange going on with multimaster replication.
When you add more then one channel replication tool not see second channel and server hangs on first channel.
This happens because mysql_upgrade tool have a bug. This bug create columns in table slave_master_info in wrong order.
MariaDB: Access denied for user ‘root’ on grants
After upgdate MariaDB to version 11.3 when I try to grant some privileges on custom users with ‘root’ account, get error: It because the root user doesn’t have all permissions ‘SHOW CREATE ROUTINE’ that can be fixed by adding permissions in the MariaDB Restart MariaDB with additional command line argument: Connect to the instance: Remove … Читати далі