<p>The mysql.proc metadata table is missing or damaged, preventing stored routines from loading.</p>
<p>MySQL Error 1457: ER_SP_PROC_TABLE_CORRUPT appears when the mysql.proc table is missing or corrupted, so stored procedures cannot be read. Rebuild or restore the mysql.proc table, then run FLUSH PRIVILEGES to resolve the issue.</p>
Failed to load routine %s. The table mysql.proc is
The server raises Error 1457 when it tries to access a stored procedure or function but cannot read its definition because the mysql.proc system table is unreadable, missing, or internally inconsistent.
The error stops routine execution and may block database upgrades, backups, or application code that calls affected routines. Fixing it quickly restores database functionality and safeguards metadata integrity.
The most frequent trigger is an unexpected shutdown during a DDL statement that altered or created a routine, leaving partial rows in mysql.proc.
File-system corruption, disk full events, or a botched MySQL version upgrade can also damage the table definition or its FRM file, leading to Error 1457 at runtime.
First, verify that the mysql.proc table exists. If it is missing, recreate it with mysql_upgrade or a CREATE TABLE script copied from a matching server version. Always back up data before changes.
If the table exists but is corrupted, dump valid rows, drop the table, recreate it, and reload the dump. Finally, run FLUSH PRIVILEGES or restart MySQL to refresh caches.
During an upgrade, the server may fail to start because mysql.proc uses an outdated structure. Running mysql_upgrade immediately after the engine comes online repairs the dictionary and clears Error 1457.
In replication, slaves might stop on Error 1457 if the proc row is corrupt on the source. Re-dumping routines from a healthy source and importing them on the replica repairs the metadata divergence.
Always shut down MySQL gracefully and schedule routine DDL during maintenance windows. Enable binary log checksums and disk-level monitoring to catch corruption early.
Include mysql.proc and other mysql.* tables in regular backups. Test restore procedures so you can recover metadata quickly when issues arise.
An unexpected crash while creating, altering, or dropping a procedure leaves inconsistent rows in mysql.proc.
Bad sectors or power loss corrupt the FRM or IB tablespace pages storing mysql.proc.
Upgrading MySQL without completing mysql_upgrade leaves the metadata table in an old format that the new server cannot parse.
Accidental removal of mysql.proc.* files from the data directory breaks routine loading.
Raised when mysql.db has missing or corrupt entries affecting database privileges.
Indicates MySQL cannot open a required metadata or data file, often due to disk corruption.
Occurs when a procedure name is queried but no matching row exists in mysql.proc.
User data tables remain intact. Only routine definitions are at risk, but always back up before repairs.
The server may still call internal routines, and upgrades rely on mysql.proc. Fixing it is recommended.
mysql_upgrade runs while the server is online, but heavy workloads may see brief metadata locks.
Galaxy’s version-controlled query library tracks routine definitions, making it easy to reapply lost procedures after metadata repair.
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