Error
Error Code:
3850
MySQL Error 3850: Redo Log Archiving Failed
Description
This error indicates that MySQL's InnoDB storage engine failed to archive its redo logs. Redo logs are crucial for data durability and crash recovery, ensuring that committed transactions are not lost. This failure typically occurs when the database attempts to move or copy these logs to a designated archive location, preventing proper operation and recovery.
Error Message
Redo log archiving failed: %s
Known Causes
4 known causesInsufficient Disk Space
The file system where MySQL attempts to store the archived redo logs has run out of available space.
Incorrect File Permissions
The MySQL server process lacks the necessary read/write permissions for the specified redo log archive directory.
Invalid Archive Destination
The configured directory for redo log archiving (e.g., `innodb_redo_log_archive_dir`) does not exist or is inaccessible.
Underlying File System Issues
Errors or corruption within the underlying operating system's file system prevent MySQL from writing to the archive location.
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