Error
Error Code:
1155
MySQL Error 1155: File Control Operation Failed
Description
Error 1155, 'Got an error from fcntl()', indicates that MySQL encountered a problem while attempting a file control operation, such as locking or managing a file descriptor. This typically occurs when the operating system prevents MySQL from performing necessary file system actions.
Error Message
Got an error from fcntl()
Known Causes
4 known causesInsufficient File System Permissions
MySQL requires appropriate read/write/execute permissions on its data directories and temporary files. Incorrect permissions can prevent `fcntl()` from locking or manipulating files.
Reached Operating System Resource Limits
The system might have reached its maximum allowed open file descriptors or other process limits, preventing MySQL from acquiring new file handles or locks.
Network File System (NFS) Locking Issues
If MySQL data files are stored on an NFS share, misconfigured NFS locking (e.g., `lockd` or `statd` issues) can lead to `fcntl()` failures.
Underlying File System Corruption
Damage or corruption within the underlying file system can cause `fcntl()` operations to fail unexpectedly when interacting with affected files.
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