Error
Error Code:
4
MySQL Error 4: File Closure Failure
Description
This error indicates that MySQL encountered an issue when attempting to close a file or an operating system resource. It typically occurs during database operations that involve temporary files, data files, or log files, often due to underlying operating system constraints or permissions.
Error Message
Error on close of '%s' (OS errno %d - %s)
Known Causes
4 known causesInsufficient File Permissions
The MySQL process lacks the necessary operating system permissions (e.g., write or delete) to properly close or modify the file.
Disk Space Exhaustion
The file system where MySQL stores its files is full or has reached its quota, preventing the OS from completing file closure operations.
Operating System Resource Limits
The server has reached its configured limits for open files or other system resources, preventing MySQL from managing its file handles.
Concurrent File Access
Another process or application is holding an exclusive lock on the file, preventing MySQL from successfully closing it.
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