3343
MySQLERRORCommonSecurity / KeyringHIGH confidence
Keyring file data is corrupt
Production Risk
Critical — all keys managed by the plugin are inaccessible; encrypted data cannot be decrypted.
How to reproduce
trigger — this will error
trigger — this will error
-- Detected when the keyring_file plugin loads the keyring file at startup.
expected output
ERROR 3343 (HY000): Keyring file has corrupted data.
Fix
Restore from backup
Restore from backup
-- Copy the most recent valid backup of the keyring file to the configured keyring_file_data path.
Why this works
The keyring file must be byte-perfect; partial keys cannot be used by the plugin.
What not to do
✕
Sources
Official documentation ↗
MySQL 8.0 — 3343 ER_KEYRING_FILE_DATA_CORRUPT
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