How to Fix MySQL Error 1467: Failed to Read Auto-Increment Value from Storage Engine

ERROR 1467 (HY000): Failed to read auto-increment value from storage engine is raised when the MySQL storage engine (almost always InnoDB) cannot determine the current maximum AUTO_INCREMENT value for a table. The error symbol is ER_AUTOINC_READ_FAILED.

Impact

Any INSERT statement that relies on an auto-generated primary key value will fail immediately with this error. The transaction is rolled back and no row is written. Statements that supply an explicit value for the AUTO_INCREMENT column may also fail depending on the severity of the underlying problem, since InnoDB still needs to update its in-memory counter.

Applications typically surface this as a database exception during record creation. ORMs such as Hibernate, Django ORM, ActiveRecord, and SQLAlchemy will propagate it as an unchecked runtime exception, often wrapping it in a generic "could not execute statement" or "database error" message. The error is not transient — retrying the same insert will fail again until the root cause is resolved.

Common Causes

InnoDB data dictionary mismatch — After a crash or unclean shutdown, InnoDB may fail to recover the in-memory auto-increment counter, particularly on MySQL 5.x where the counter is not persisted to the redo log and must be reconstructed from the table data on startup. If that reconstruction fails, subsequent inserts raise 1467.
Table or index corruption — Physical corruption of the primary key index (clustered index in InnoDB) prevents InnoDB from scanning the maximum existing key value. This can occur after disk errors, filesystem corruption, or an abrupt server termination while a write was in progress.
AUTO_INCREMENT counter set to an invalid value — Manually setting AUTO_INCREMENT to 0, a negative number, or a value that exceeds the column's data type maximum (e.g., BIGINT UNSIGNED overflow) can put InnoDB into an inconsistent state.
Partitioned table issues — On partitioned InnoDB tables, each partition maintains its own auto-increment information. Partition pruning errors or mismatches between partition definitions can prevent the counter from being read.
Tablespace or .ibd file is missing or inaccessible — If the per-table tablespace file (tablename.ibd) is missing, has incorrect permissions, or belongs to a different table schema, InnoDB cannot open the table at all, resulting in this error on any DML.
Upgrading from MySQL 5.x to 8.x with existing tables — MySQL 8.0 changed how AUTO_INCREMENT state is persisted (using the redo log instead of reconstructing from data). Tables created under 5.x and imported or upgraded without ALTER TABLE ... AUTO_INCREMENT correction can occasionally exhibit this issue.

Troubleshooting and Resolution Steps

Check for table errors

Run a check on the affected table first:
```
CHECK TABLE your_table_name;
```
If the output shows status: OK, the table structure is intact. Any other status indicates corruption — proceed to step 3.

Inspect the current AUTO_INCREMENT value

SELECT AUTO_INCREMENT
FROM information_schema.TABLES
WHERE TABLE_SCHEMA = 'your_database'
  AND TABLE_NAME   = 'your_table_name';

A NULL result means InnoDB could not determine the counter — confirming the error cause.

Repair or rebuild the table

For a non-corrupt table where the counter is simply lost, reset it explicitly:
```
-- Set to a value higher than the current maximum id
SELECT MAX(id) FROM your_table_name;

ALTER TABLE your_table_name AUTO_INCREMENT = <max_id + 1>;
```
If CHECK TABLE reported corruption, attempt a repair:
```
REPAIR TABLE your_table_name;
```
Note: REPAIR TABLE is not supported for InnoDB. For InnoDB, rebuild the table instead:
```
ALTER TABLE your_table_name ENGINE = InnoDB;
```
This performs an in-place table rebuild, reconstructing all indexes and resetting the auto-increment counter from the actual data.
Restore from backup if corruption is severe

If ALTER TABLE ... ENGINE = InnoDB also fails (e.g., due to missing or corrupt .ibd file), you will need to restore the table from a known-good backup and replay any binlog events that occurred after the backup was taken.
Check tablespace file permissions and presence
```
ls -lh /var/lib/mysql/your_database/your_table_name.ibd
```
The file must be owned by the mysql user (or whichever OS user the server runs as) and must be readable. Restore from backup or use InnoDB's tablespace import/export feature if the file is missing or belongs to a different table.
After MySQL version upgrade, force counter reset

After upgrading from 5.x to 8.x, run the following on affected tables to ensure the counter is persisted in the new format:
```
ALTER TABLE your_table_name AUTO_INCREMENT = 1;
```
InnoDB will silently adjust the value upward to MAX(id) + 1 if the supplied value is too low.

Additional Information

This error carries SQLSTATE HY000 (general error), so it cannot be distinguished from other HY000 errors by SQLSTATE alone — always check the error code (1467) or symbol (ER_AUTOINC_READ_FAILED).
Related errors: 1005 (ER_CANT_CREATE_TABLE) and 1030 (ER_GET_ERRNO) can accompany this error when the .ibd file itself is missing or unreadable.
MySQL 8.0+ persists the AUTO_INCREMENT counter in the redo log, making it crash-safe. MySQL 5.7 and earlier reconstruct it on startup, so the counter could silently decrease after a restart if the highest-id row was deleted before the crash.
MyISAM tables store auto-increment data in the .MYI index file; the same symptom on a MyISAM table points to index file corruption and REPAIR TABLE is supported for that engine.
In replication setups, this error on a replica typically means the replica's copy of the table is out of sync with the source — a full table re-sync (e.g., mysqldump + restore or pt-table-sync) is usually required rather than just resetting the counter.

Frequently Asked Questions

Why does this error appear only after a server restart? On MySQL 5.7 and earlier, InnoDB does not persist the AUTO_INCREMENT counter to disk. On startup it scans the primary key index to find MAX(id) and sets the counter from that. If the index is corrupt or the scan fails, the counter cannot be initialized and any subsequent insert triggers error 1467. MySQL 8.0 fixed this by writing the counter to the redo log on every change.

Can I just use SET AUTO_INCREMENT to work around the error? If the underlying table data and indexes are intact, yes — ALTER TABLE t AUTO_INCREMENT = N is safe and effective. If the indexes are corrupt, the ALTER itself may fail; in that case you need to rebuild the table or restore from backup.

Will REPAIR TABLE fix this on InnoDB? No. REPAIR TABLE is a MyISAM operation. For InnoDB, the equivalent is ALTER TABLE ... ENGINE = InnoDB, which triggers a full table rebuild and implicitly reconstructs all indexes and the auto-increment counter.

How do I prevent this error in production? Enable InnoDB checksums (on by default in MySQL 5.6+), use innodb_doublewrite = ON (default), keep regular backups, and monitor for disk-level errors. After any unclean shutdown, run CHECK TABLE on critical tables before putting the application back in service.