Error
Error Code:
3019
MySQL Error 3019: InnoDB Undo Log Full
Description
Error 3019 indicates that MySQL's InnoDB storage engine has run out of space in its undo log segments. The undo log is crucial for transaction isolation, rolling back transactions, and supporting Multi-Version Concurrency Control (MVCC). This error typically occurs when the system cannot record transaction changes due to insufficient undo log capacity.
Error Message
Undo Log error: %s
Known Causes
3 known causesLong-Running Transactions
Transactions that remain open for extended periods prevent the undo log from being truncated and reused, leading to accumulation.
High Transaction Volume
A high rate of concurrent data modification operations (INSERT, UPDATE, DELETE) can quickly consume available undo log space.
Insufficient Undo Log Configuration
The configured size or number of undo log segments may be inadequate for the database's workload, limiting available space.
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