Error
Error Code:
2021
MySQL Error 2021: Embedded Server Connection Failure
Description
This error indicates an issue when a client application attempts to use an embedded MySQL server library. It typically occurs when the application is designed to run MySQL directly within its own process, but the embedded server fails to initialize or respond correctly.
Error Message
Embedded server
Known Causes
4 known causesMissing Embedded Library Files
The necessary MySQL embedded server library files (e.g., `libmysqld.dll` or `libmysqld.so`) are not present or accessible in the application's environment.
Incorrect Embedded Server Configuration
The client application's internal configuration for the embedded MySQL server, such as data directory paths or startup options, is invalid or misconfigured.
Resource Access Issues
The embedded server is unable to access required resources, such as its data directory, temporary files, or necessary system permissions.
Application Initialization Failure
The client application failed to correctly initialize or start the embedded MySQL server component within its own process.
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