EC
1548
MariaDBERRORNotableEventsHIGH confidence

Failed to drop the event

Production Risk

Low — the event was not dropped; investigate storage.

What this means

ER_EVENT_DROP_FAILED (1548, SQLSTATE HY000) is raised when DROP EVENT fails due to storage errors while removing the event from mysql.event.

Why it happens
  1. 1I/O error removing the event from mysql.event
  2. 2mysql.event table corruption
How to reproduce
trigger — this will error
trigger — this will error
DROP EVENT my_event;  -- Fails due to storage error

expected output

ERROR 1548 (HY000): Failed to drop event 'my_event'

Fix

Check and repair the mysql.event table

Check and repair the mysql.event table
CHECK TABLE mysql.event;
REPAIR TABLE mysql.event;

DROP EVENT IF EXISTS my_event;

Why this works

Repairing the mysql.event table resolves storage errors during event deletion.

Sources
Official documentation ↗

MySQL 8.0 — 1548 ER_EVENT_DROP_FAILED

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