Error
Error Code:
3058
MySQL Error 3058: User-Level Lock Deadlock
Description
This error occurs when MySQL detects a deadlock specifically involving user-level locks (acquired using `GET_LOCK()`). It signifies that two or more transactions are in a circular waiting state, each holding a lock that another transaction needs, preventing any progress. MySQL intervenes by terminating one of the transactions to break the deadlock.
Error Message
Deadlock found when trying to get user-level lock; try rolling back transaction/releasing locks and restarting lock acquisition.
Known Causes
4 known causesConcurrent Lock Acquisition
Multiple transactions simultaneously attempt to acquire the same user-level lock or a set of user-level locks in a conflicting order.
Inconsistent Lock Order
Different transactions attempt to acquire multiple user-level locks in varying sequences, leading to a circular wait condition.
Long-Running Transactions
Transactions holding user-level locks for extended periods increase the window for deadlock conditions with other lock requests.
Application Logic Flaws
Bugs in application code related to the acquisition and release of user-level locks can inadvertently create deadlock scenarios.
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