Error
Error Code:
1207
MariaDB Error 1207: Update locks in READ UNCOMMITTED
Description
This error occurs when a MariaDB transaction, set to the `READ UNCOMMITTED` isolation level, attempts to perform an operation that requires acquiring an update lock. The database treats `READ UNCOMMITTED` transactions as read-only, preventing any data modification or locking operations. This conflict arises because the isolation level is too low for the intended write operation.
Error Message
Update locks cannot be acquired during a READ UNCOMMITTED transaction
Known Causes
3 known causesIncorrect Isolation Level
The transaction was explicitly set to `READ UNCOMMITTED` isolation, but then attempted a data modification operation requiring an update lock.
Application Logic Error
The application code is initiating a write operation within a transaction that has been inadvertently configured for `READ UNCOMMITTED` isolation.
Default Session Setting
The database session's default transaction isolation level was configured as `READ UNCOMMITTED`, implicitly restricting subsequent update attempts.
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