Error
Error Code:
3506
MySQL Error 3506: Invalid Dictionary Object
Description
This error indicates that a MySQL internal dictionary object, which stores critical metadata about database structures like tables or columns, is found to be in an invalid or corrupted state. It typically occurs when MySQL attempts to access this compromised metadata, preventing normal database operations.
Error Message
%s dictionary object is invalid. (%s)
Known Causes
3 known causesCorrupted System Tables
Underlying system tables or files (e.g., system tablespace) storing MySQL's database metadata have become corrupted, leading to an inconsistent dictionary object.
Improper Server Shutdown
An abrupt or ungraceful shutdown of the MySQL server can prevent proper flushing of metadata changes, resulting in corrupted dictionary objects upon restart.
Underlying Hardware Failure
Physical hardware issues, such as disk corruption, faulty RAM, or power fluctuations, can directly cause data integrity problems within MySQL's system tables.
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