Error
Error Code:
3841
MySQL Error 3841: Redo Log Archive Directory Invalid
Description
This error indicates that the `innodb_redo_log_archive_dirs` server variable, which specifies directories for archiving redo logs, has been configured incorrectly. It typically occurs during MySQL server startup or when attempting to enable redo log archiving if the variable's value is missing or empty.
Error Message
Server variable 'innodb_redo_log_archive_dirs' is NULL or empty
Known Causes
3 known causesMissing or Empty Configuration
The `innodb_redo_log_archive_dirs` variable was specified in the configuration file or startup options but was assigned a NULL or empty string value.
Typographical Error
A typo in the variable name might cause MySQL to not recognize it, treating it as if it were never set, which can lead to it being implicitly empty or NULL.
Incorrect Syntax
Even if specified, the value might not conform to the expected syntax for directory paths, leading the server to interpret it as invalid or empty.
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