Error
Error Code:
1814
MySQL Error 1814: Discarded Tablespace Issue
Description
This error indicates that MySQL cannot locate or access the tablespace (`.ibd` file) associated with a specific InnoDB table. It typically occurs when the physical tablespace file is missing, moved, or explicitly detached from the table's definition in the data dictionary.
Error Message
Tablespace has been discarded for table '%s'
Known Causes
4 known causesIntentional Tablespace Discard
The `ALTER TABLE ... DISCARD TABLESPACE` command was explicitly executed, detaching the table's `.ibd` file from the MySQL data dictionary.
Missing Tablespace File
The physical `.ibd` file for the table is missing from the data directory, has been moved, or is inaccessible on the file system.
Data Dictionary Inconsistency
MySQL's internal data dictionary indicates a tablespace should exist for the table, but the corresponding physical `.ibd` file is not found or is corrupted.
Incomplete Restore or Migration
During a database restoration or migration, the `.ibd` files were not correctly copied or linked with the corresponding table definitions.
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