Mysql-Shell on DAWN's Blog

Mysql-Shell on DAWN's Blog https://LMDAWN1127.github.io/tags/mysql-shell/ Recent content in Mysql-Shell on DAWN's Blog DAWN's Blog https://LMDAWN1127.github.io/images/DAWN.jpg https://LMDAWN1127.github.io/images/DAWN.jpg Hugo zh-cn Thu, 08 Oct 2026 21:40:00 +0800 MySQL 版本升级实战与回退：5.6→5.7→8.0 就地升级、mysql-shell 检测与回退方案 https://LMDAWN1127.github.io/posts/mysql-version-upgrade-rollback/ Thu, 08 Oct 2026 21:40:00 +0800 https://LMDAWN1127.github.io/posts/mysql-version-upgrade-rollback/ 从升级方法（本地 Inplace / 迁移 Mergeing）、升级规范与流程讲起，实战 5.6→5.7→8.0 就地升级：冷备、安全模式挂库启动、mysql_upgrade 升级授权表、正常重启验证；并用 mysql-shell 的 util.checkForServerUpgrade() 做 8.0 升级前检测；最后给出升级失败时的程序与数据回退步骤。