Error
Error Code:
3660
MySQL Error 3660: Invalid Thread ID
Description
This error indicates that an operation attempted to reference a MySQL server thread ID that is either invalid, no longer exists, or has been reassigned. It typically occurs when a client or an internal process tries to interact with a connection or task that is no longer active on the server.
Error Message
Invalid thread id (%llu).
Known Causes
3 known causesReferencing a Closed Connection
A client application attempts to perform an operation using a connection handle whose underlying server thread has already been closed or terminated.
Stale Application Thread ID
Application logic stores and later tries to use a MySQL thread ID that is no longer valid because the associated connection was previously closed.
Attempting to Kill Non-Existent Thread
An administrative command, such as `KILL`, is executed on a thread ID that does not currently correspond to an active MySQL server process.
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