3213
MySQLERRORCommonInnoDB / StorageHIGH confidence
InnoDB redo log data missing
Production Risk
Critical — database may be unable to start.
Why it happens
- 1InnoDB redo log files (ib_logfile*) are missing or corrupted.
- 2Redo log files were deleted or not restored from backup.
How to reproduce
trigger — this will error
trigger — this will error
-- Occurs during InnoDB startup or crash recovery.
expected output
ERROR 3213 (HY000): Redo log data is missing.
Fix 1
Restore redo log files from backup
Restore redo log files from backup
-- Restore ib_logfile0, ib_logfile1 from the backup set.
Why this works
Redo logs are required for crash recovery and normal InnoDB operation.
Fix 2
Set innodb_force_recovery to allow startup
Set innodb_force_recovery to allow startup
-- Set innodb_force_recovery=1 in my.cnf and restart, then export and recreate.
Why this works
Force recovery mode allows starting InnoDB with damaged redo logs for data extraction.
What not to do
✕
Sources
Official documentation ↗
MySQL 8.0 — 3213 ER_REDO_LOG_DATA_MISSING
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