Error
Error Code:
1812
MariaDB Error 1812: Missing Table's Data File
Description
Error 1812 indicates that MariaDB cannot locate the physical tablespace file (e.g., an .ibd file for InnoDB) associated with a specific table, even though the table's definition might exist in the data dictionary. This prevents the server from accessing or manipulating data for the affected table and typically occurs during DML (SELECT, INSERT, UPDATE, DELETE) or DDL (ALTER TABLE) operations.
Error Message
Tablespace is missing for table '%s'
Known Causes
4 known causesAccidental File Deletion/Movement
A user or external process manually deleted or moved the physical data file (e.g., .ibd file for InnoDB) associated with the table, making it inaccessible to MariaDB.
Data Directory Corruption
The MariaDB data directory or the specific database directory containing the table's files has become corrupted, damaged, or partially lost due to hardware failure or other issues.
Incomplete Restore/Migration
During a database restore or migration, the tablespace file for the table was not included or was not copied to the correct location in the new environment.
Filesystem Access Issues
Problems with the underlying filesystem (e.g., incorrect permissions, disk errors, unmounted volume) prevent MariaDB from reading the necessary tablespace files.
Solutions
Coming SoonDetailed step-by-step solutions for this error are being prepared. In the meantime, try these general troubleshooting tips:
General Troubleshooting Tips
- Check the error message carefully for specific details
- Review recent changes that might have caused the error
- Search for the exact error code in the official documentation
- Check log files for additional context
- Try restarting the application or service