1579
MySQLERRORCriticalEventsHIGH confidence
Error reading from the mysql.event table
Production Risk
High — the Event Scheduler is disabled, and scheduled events will not fire.
What this means
MySQL encountered an error reading from the mysql.event system table, typically at startup.
Why it happens
- 1The mysql.event table is corrupted.
- 2The mysql.event table schema is out of date (needs mysql_upgrade).
- 3Insufficient privileges to read the mysql schema.
How to reproduce
trigger — this will error
trigger — this will error
-- Typically surfaces in error log at startup: -- "Event Scheduler: An error occurred when initializing system tables. Disabling the Event Scheduler."
expected output
ERROR 1579 (HY000): The mysql.event table is damaged. Please run mysql_upgrade
Fix 1
Run mysql_upgrade
Run mysql_upgrade
mysql_upgrade -u root -p
Why this works
mysql_upgrade repairs and updates system tables including mysql.event to the current schema.
Fix 2
Repair the event table
Repair the event table
REPAIR TABLE mysql.event;
Why this works
REPAIR TABLE can fix minor corruption in MyISAM-based system tables.
What not to do
✕
Sources
Official documentation ↗
MySQL 8.0 — 1579 ER_EVENTS_DB_ERROR
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