Error
Error Code:
1651
MariaDB Error 1651: Query Cache Disabled on Startup
Description
This error indicates that the MariaDB query cache, a feature designed to speed up repeated SELECT queries, is currently inactive. It occurs when a client attempts to use or expects the query cache to be active, but the server's configuration has explicitly disabled it or it was not enabled during server startup.
Error Message
Query cache is disabled; restart the server with query_cache_type=1 to enable it
Known Causes
3 known causesExplicit Configuration Disablement
The MariaDB server's configuration file (`my.cnf` or `my.ini`) explicitly sets `query_cache_type` to `0` or `OFF`.
Missing Configuration Entry
The `query_cache_type` variable was not explicitly defined in the server's configuration, causing it to default to a disabled state.
Intentional Administrator Decision
A database administrator deliberately disabled the query cache, possibly for performance tuning or to align with deprecation in newer MariaDB versions.
Solutions
Coming SoonGeneral 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