-------- Original-Nachricht -------- Betreff: Re: [Maria-discuss] Change from MySQL to MariaDB - Problem with EVENTS-Table in information_schema Von: Reindl Harald An: maria-discuss@lists.launchpad.net Datum: 20.12.2013 13:25
Am 20.12.2013 13:22, schrieb Frank Röhm:
day before yesterday I updated my MySQL Server 5.5.34 to MariaDB 5.5.34 on my Ubuntu 12.04 Server.
All went fine but next day, I noticed that the automatic backup script (automysqlbackup) had errors, I read:
mysqldump: Couldn't execute 'SELECT /*!40001 SQL_NO_CACHE */ * FROM `EVENTS`': Cannot proceed because system tables used by Event Scheduler were found damaged at server start (1577) mysqldump: Couldn't execute 'show events': Cannot proceed because system tables used by Event Scheduler were found damaged at server start (1577)
looks like you *did not* run "mysql_upgrade -u root -p" after the migration! you should do this after *any* mysql/mariadb update directly after the service was restarted to prevent from hidden *serious* problems like root not allowed to use several grant-commands because missing columns in the permission tables and such nasty things
You are right, I did the mysql_upgrade only the next day after I noticed this issue and after a research about it. What can I do now? Can I play back the information_schema db or ist this not a solution?