Error
Error Code:
1440
MySQL Error 1440: Duplicate XA Transaction Identifier
Description
This error signifies an attempt to use an XA transaction identifier (XID) that is already associated with an existing, active distributed transaction within MySQL. It typically occurs in distributed transaction environments when a transaction manager tries to register or resume an XA transaction with an XID that is not unique at that moment.
Error Message
XAER_DUPID: The XID already exists
Known Causes
3 known causesNon-Unique XID Assignment
The application or transaction coordinator assigned an XA transaction identifier (XID) that is currently in use by another active distributed transaction.
Incomplete XA Transaction State
A previous XA transaction with the same XID was not fully committed or rolled back, leaving its identifier registered as active within MySQL.
Transaction Manager Logic Error
The transaction manager or application logic has a flaw in how it generates, tracks, or reuses XIDs, leading to conflicts.
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