Error
Error Code:
1098
MySQL Error 1098: Log Filename Generation Failure
Description
This error indicates that the MySQL server was unable to create a new log file (such as a binary log, relay log, or general query log) because it could not generate a unique filename within its defined naming convention. This typically occurs during log rotation, server startup, or when a new log file needs to be initiated, preventing critical logging operations.
Error Message
Can't generate a unique log-filename %s.(1-999)
Known Causes
4 known causesInsufficient Disk Space
The disk partition where MySQL logs are stored has run out of space, preventing the creation of new log files.
Incorrect File Permissions
The MySQL user does not have the necessary write permissions for the directory where log files are supposed to be created, blocking file generation.
Invalid Log Directory Configuration
The configured path for log files in `my.cnf` (e.g., `log-bin`, `relay-log`, `general_log_file`) points to a non-existent, inaccessible, or read-only directory.
Log File Suffix Exhaustion
In rare scenarios, the server may have exhausted the available unique numeric suffixes (1-999) for log filenames in the designated directory, although this is highly unlikely under normal operation.
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