a year ago
2025-03-03T05:02:40.116095Z 0 [System] [MY-015015] [Server] MySQL Server - start.
2025-03-03T05:02:40.487179Z 0 [System] [MY-010116] [Server] /usr/sbin/mysqld (mysqld 8.4.4) starting as process 7
2025-03-03T05:02:40.499233Z 1 [System] [MY-013576] [InnoDB] InnoDB initialization has started.
2025-03-03T05:02:40.956015Z 1 [ERROR] [MY-014061] [InnoDB] Invalid MySQL server downgrade: Cannot downgrade from 90001 to 80404. Downgrade is only permitted between patch releases.
mysqld: Can't open file: 'mysql.ibd' (errno: 0 - )
2025-03-03T05:02:40.964245Z 1 [ERROR] [MY-010334] [Server] Failed to initialize DD Storage Engine
2025-03-03T05:02:40.964517Z 0 [ERROR] [MY-010020] [Server] Data Dictionary initialization failed.
2025-03-03T05:02:40.964569Z 0 [ERROR] [MY-010119] [Server] Aborting
2025-03-03T05:02:40.967278Z 0 [System] [MY-010910] [Server] /usr/sbin/mysqld: Shutdown complete (mysqld 8.4.4) MySQL Community Server - GPL.
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1 Replies
a year ago
Hello,
I've reverted the MySQL version change attempt that you were trying to do.
Your database is back online and fully accessible again!
Best.
Brody