Error
Error Code:
46
MySQL Error 46: Failed to Create IO Port
Description
This error indicates that MySQL, when running on Windows, failed to create an I/O completion port. This critical system resource is essential for efficient asynchronous I/O operations, and its failure typically points to underlying operating system issues or resource exhaustion. It prevents the MySQL server from starting or operating correctly, making it a severe operational fault.
Error Message
Failed to create IO completion port (OS errno %d).
Known Causes
4 known causesInsufficient System Resources
The operating system may lack sufficient available memory, kernel resources, or system handles to create the required I/O completion port.
Operating System Limits Reached
The system might have reached its configured limit for the number of I/O completion ports or other kernel objects that can be created by processes.
OS Corruption or Misconfiguration
Underlying operating system files, drivers, or registry settings related to I/O management may be corrupted or incorrectly configured.
Security Software Interference
Antivirus software, firewalls, or other security applications might be blocking MySQL's legitimate access to critical system resources.
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