Error
Error Code:
1015
MySQL Error 1015: File Locking Failure
Description
This error indicates that the MySQL server process was unable to acquire a necessary lock on a file. This typically prevents MySQL from performing operations that require exclusive access to data files, index files, or other internal files, often pointing to underlying operating system or file system issues.
Error Message
Can't lock file (errno: %d - %s)
Known Causes
4 known causesInsufficient File Permissions
The MySQL server process lacks the necessary read/write permissions for the data directory or specific files it needs to lock.
File System Issues
The underlying file system is read-only, out of space, corrupted, or experiencing I/O errors, preventing file locking.
External Process Interference
Another operating system process or utility is holding an exclusive lock on the file MySQL is attempting to access.
Network Storage Problems
If MySQL data is stored on a network-attached storage (NAS) or shared drive, network connectivity or configuration issues can impede file locking.
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