Error
Error Code:
3851
MySQL Error 3851: Redo Log Archiving Not Started
Description
This error indicates that an operation requiring redo log archiving was attempted by the current MySQL session, but the archiving process had not been explicitly initiated or enabled for that session. It typically occurs when trying to perform actions that depend on an active redo log archiving stream without first starting the mechanism.
Error Message
Redo log archiving has not been started by this session
Known Causes
3 known causesAttempting Archive Without Start
The current session tried to execute an operation (e.g., `ALTER INSTANCE ARCHIVE LOGS FOR ENCRYPTION`) that depends on an active redo log archiving stream, but the `START GROUP_REPLICATION ARCHIVE` or equivalent command was not issued beforehand.
Incorrect Operational Sequence
Operations related to redo log archiving were executed in an improper order, where a dependent action was invoked before the necessary archiving service or session-level archiving was properly initialized.
Instance Archiving Not Enabled
While the message points to the session, an underlying reason might be that the MySQL instance itself has not been properly configured or enabled to support redo log archiving, preventing any session from starting it successfully.
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