摘要：
mysql主从配置解决错误
1、error connecting to master 'repl@192.168.0.21:3306' - retry-time: 60 retries: 4 message: Authentication plugin 'caching_sha2_password' reported error: Authentication requires secure connection.
2、 Fatal error: The slave I/O thread stops because master and slave have equal MySQL server UUIDs; these UUIDs must be different for replication to work. 阅读全文